User Manual of S-type Ram BOP
User MANUAL OF RAM BOP
SHANGHAI SHENKAI PETROLEUM EQUIPMENT CO., LTD.
User Manual of S-type Ram BOP
Safety Guidance
This manual states the precautions for compliance to ensure the personal safety and protect the products and
equipment connected to it from damaging.
These precautions are marked with symbols and described as below according to the severity:
Note:
It indicates the possibility of death, serious personal injuries or major property damage due to improper
preventative measures.
Note:
It is used to draw your attention for the crucial information and special parts for handling the products or
documents.
Qualified Persons
Only the qualified persons can install and operate the device. Qualified persons are defined as personnel with some
job experiences of on-site well control, installing, commissioning and operating the equipment in accordance with
the established safety practice and standards.
Proper Use
Precautions:
Note:
This device and its accessories are only used for the purposes stated in the product catalogue or technical
specifications and can only connected to device or components recognized or recommended by SHENKAI
Company that are produced by other manufacturers.
Safety first for the well control device, replace the damageable metal and non-metal parts that may affect the safety
and performances of products during the test, especially the ram rubber core。
This product shall be operated and maintained as per the recommended means under the conditions of proper
transportation, storage, assembly and installation to function properly and safely.
Trademark
R
○
R
○
,
R
○
and
are the registered trademarks of SHENKAI
Company.
Any third party using other descriptions related to the trademark referred to herein will infringe the benefits of trademark
owner.
SHENKAI Company is entitled to the copyright of ○c 2009 and reserves all rights concerned.
No one can copy, transfer or use this manual or its contents without the expressed written authorization.
The violators will be called to account and SHENKAI Company reserves all right like patent right, utility model or
appearance design exclusive right.
All the BOP products of our company are in compliance with API 16A and GB/T20174 standard, we have
obtained the license for using API monogram and get manufacturing license from AQSIQ, which are
16A-0111
, XK14-001-0002
.
SHANGHAI SHENKAI PETROLEUM EQUIPMENT CO., LTD. Hereby tell the world that we have verified that the
contents herein comply with the said product; yet we cannot avoid the errors. We will review the contents in this manual and
may modify them in next version. You are welcome to file the opinion for improvement.
SHENKAI Company reserves the copyright ○c 2010 and will not notify otherwise in case of any changes.
User Manual of S-type Ram BOP
SHANGHAI SHENKAI PETROLEUM EQUIPMENT CO., LTD.
Technical Support Department
Customer Service Hotline: +86(21)64290467
FAX: +86(21)34030004
Web-site: www.shenkai.com
Zip Code: 201114
User Manual of S-type Ram BOP
Table of Contents
1. Overview……………………………………………………………… 1
.
2. Connection and outline dimension figure ……………………… 2
3. Working Principle…………………………………………………… 4
4. Structural Features ………………………………………………… 5
5. Structures and Features of Major Parts ……………………………6
6. Method of Installation…………………………………………………… 19
7. Operation and Caution ………………………………………………… 19
8. Servicing and Maintenance………………………………………… 20
9. Common troubles and settlements …………………………………22
10. Ordering Information……………………………………………… 23
User Manual of S-type Ram BOP
1．Overview
SHANGHAI SHENKAI PETROLEUM EQUIPMENT CO., LTD. is
a professional company engaged in manufacturing the petroleum
equipment and tools and it started to produce various kinds of BOPs since
1974, with a long history and powerful product development and
manufacturing capacity; with self-contained product quality inspecting
and testing device, it has been elected the hi-tech enterprise by Shanghai
Science Commission for years. 105Mpa BOP sets produced by it have
been entitled the Importance New Product of Shanghai Municipality and
National Importance New Product. At present, the BOP sets produced by
this company are made in series applicable for land offshore oil drill
platform.
This company employs the integral QHSE management system, the
product design and manufacturing process comply with the national
standards of API Spec 16A—Specification for Drill-through Equipment
and GB20174—Petroleum and Natural Gas Industries - Drilling and
Production Equipment - Drill-through Equipment and this company has
been certified by API Spec Q1 and ISO 9001 Certificates of Quality
Certification and get the permit of API Spec 16A product trademark.
1.1 Type shows below：
F Z
New No.：E、F、G…
Connection:
A—top、bottom flanged
B—top studded and bottom flanged
C—top flanged and bottom studded
D—top、bottom studded, omitted
D shows that pressure-containing parts are forge, casts
can be omitted
Shows the rating working pressure: e.g. “70” shows 70MPa
Bore dimension: e.g. 28 shows that Bore is 279.4mm (11″)
Ram BOP for short：
“FZ”
Single Ram BOP-omitted，Double Ram BOP -“2”
，Triple Ram BOP“3”
Example：
2FZ2870A
shows： Double Ram BOP, Bore is φ279.4, rating working pressure is
70MPa, pressure-containing parts are casts，manual-lock，top
and bottom flanged.
FZ3570DB
shows： Single Ram BOP, Bore is φ346.1，rating working pressure is
70MPa, pressure-containing parts are forge, poslock, top studded
and bottom flanged.
1
User Manual of S-type Ram BOP
1.2 Application
Ram BOP with hydraulic control is a key part of well-control equipment. It’s used for
controlling wellhead pressure during well drilling, workover and testing etc., preventing well
blowout effectively and realizing safe construction. It can be used for the following:（Figure 1）：
 With proper pipe ram sealing the annular space between casing and drilling string when there is
pipe in the hole;
 With blind ram sealing the well head completely
 When the well head is closed, use the kill manifold and choke manifold connected to the spool
and the outlet of the body doing mud circulating, choking and releasing, well killing etc.;
 Necessarily, drilling tolls can be hung on pipe ram.
 With shear/blind rams shearing the drilling tools to seal the well in some special circs.
Annular BOP
Double Ram BOP
Drilling Spool
Single Ram BOP
Figure 1
sketch map for installation of Ram BOP
2．Connection and outline dimension figure（Figure 2、Figure3）
2
User Manual of S-type Ram BOP
Figure2
Figure 3
3
User Manual of S-type Ram BOP
3. Working Principle
3.2 Principle of Sealing
Ram BOP consists of some main parts such as
Ram BOP has 4 sealing parts in order to seal the
body, side door, cylinder, piston, ram shaft, locking
wellhead effectively.
The ram top seal and body
shaft, cylinder head, and ram assembly etc.（Figure 4）
seal; sealing between ram front seal and the pipe;
sealing between the body and the side door; sealing
3.1 Principle of Opening and Closing Operation
between ram and the side door. Produce of ram
When pressure oil of hydraulic pressure system
sealing divided into 2 steps. First when closing the
is pumped into the closing cavity of left and right
ram, ram shaft affected by hydraulic oil pushes ram
cylinder, it pushes the piston with ram shaft and ram
front seal rubber to press the front part of sealing
assembly to move to the center along the orbit limited
distorted and seal off pipe string or well hole forming
by the guide rid in the ram chamber to realize well
front sealing, over compression between the top seal
sealing. When it pumped into the opening cavity of
rubber and the body seal the top part, forming top
left and right cylinder, it pushes the piston with ram
sealing and accomplishes primary sealing. Second
shaft and ram assembly to move to the center to open
when there is pressure in the well, it pushes the ram
the wellhead. The conversion valve of hydraulic
front seal from back part of ram to extrude distortion
pressure system controls the ram switch; Ram switch
more deeply, at the same time, the ram up against the
force is direct ratio with the forced area of piston and
body seal face, thus forming reliable sealing. This is
the hydraulic pressure on this area.
called well pressure assisting sealing.
Ring Groove
Side Door Bolt
Side Door Seal
Side Outlet
Side Door
Cylinder Head
Cylinder
Locking Shaft Seal
Pipe Ram Assembly
Piston
Blind Ram Assembly
Locking Shaft
Ram Shaft
Ram Shaft Seal
Figure 4 The Consist parts of Ram BOP
4
User Manual of S-type Ram BOP
4．Structure Features
4.1 Main pressure-containing parts such as body and
4.2 There are high supporting rib and oblique plane for
side door are cast with high-quality alloy steel, the
settling and sloping to the well hole at the bottom of the
material conform to NACE MR-01-75 specification,
ram cavity of the body, de-sanding automatically when
apply to the working condition of acid medium and
opening and closing the ram, prevent blocking and
speci`ally heat treatment. The pressure-containing
reducing friction of the ram. It is also helpful for well
parts has do the hydrostatic
pressure assisting ram seal.
test in accordance to
the specification of API 16A to ensure safety during
operating under working pressure.
4.3 Using floating ram scaling can reduce the
resistance force of opening and closing the ram,
wearing of ram rubbers, prolonging ram life and
preventing rust between body and ram, accessible
for changing.
4.4 There is a guide-block on the front end of ram, it
can plug in the groove of the opposite ram and the
slope of guide-block can move grilling tool toward
well bore during closing rams, ensure reliable
sealing between the ram and drilling tool.
4.5 The BOP using the inner flow to avoid
damaging the pipe during installing, transporting
and operating.
4.6 Load hinges separate from the fluid hinges, they
are equipped with self-lubricated diametrical needle
bearings and thrust bearings to support the full weight
of the side door grow quick and easy opening and
closing, the up and down positions of the side door
4.8 When the rated working pressure is more than
can be adjusted with load hinges. Middle fluid hinges
105Mpa, door seal use floated sealing assembly.
only connect oil lines and seal oil pressure, don’t
support the weight of side door then increase the seals
service life. It also can change seals directly on the
body without disassembling the side door.（Except
FZ35-70、2FZ35-70）
4.7 Ensure to seal well more safety and reliable, there
is a manual-operated control system. If the control
4.9 Ram shaft seal use the lip type seal structure.
system of BOP is out of control, you can use the
manual-operated one to close the ram. If you want to
4.10 Top, bottom and flange outlet connection
seal well for a long time, then you can use
dimensions conform to Specification for Drilling
manual-operated control system. （Figure 3 ）
Through Equipment API Spec 16A.
5
User Manual of S-type Ram BOP
5 Structure and feature of main part(s)
5.1
Ram: Model S ram（figure 4）、Model HF ram（figure 5）、Model H ram（figure 6）
Shear ram（figure 7）
5.1.1 Type S Ram：
Structure feature of Type S ram:（see figure 5）
Top and bottom of ram are symmetric. When top surface of the ram rubber has been worn seriously, another
side can be used to prolong rubber life. Ram assembly consists of ram block, holder, rubber and retracting screw.
Floating performance of the ram is good. Because the ram seat (ram holder) and the ram body (block) are
separated, the ram can move slightly in the holder to ensure positive alignment of the rubber faces as face seal
contact occurs. There is 3mm installing clearance between the ram body and the ram seat. When shutting off the
ram, the holder extruded top rubber distorted to bulge up to enhance effectiveness of sealing and reduces the wear of
the ram rubbers.
5
Procedure of changing rubber for Type S ram
Unscrew the two ram bolts and take down the holder.
4
Remove the two ram rubber bolts.
Take out the top seal from the groove of the ram block
2
with a screwdriver.
Remove the whole rubber from the rams.
1
Before installing, clear the ram block, the holder, the
rubber and retracting screw and smear oil unit. The procedure
3
of assembling is in the opposite order. Don’t push out the top
seal rubber excessively and avoid wearing and scratching the
ram rubber rapidly.
Figure 5
Sheet 2
Type S Ram Assembly Parts List
FZ28-35
2FZ28-35
Ram Type
S
Item Number
Description
Assembly
Quantity
1
2
3
4
5
Retracting Screw
Holder
Rubber
Retaining Screw
Block
2
1
1
2
1
DFZ2835-01B-03
DFZ2835-01B. 01-00
GB70-76 M12×60
DFZ2835-01B-02
DFZ2835-01B-03
DFZ2835-01C. 01-00
GB70-76 M12×60
DFZ2835-01C-02
GB70-76 M12×60
DFZ2835-01B-02
Ram Size
27/8″
Type S Ram
Part Number
DFZ2835-01B-00
DFZ2835-01B-05
31/2″
41/2″
DFZ2835-01D-00
DFZ2835-01B-05
DFZ2835-01B-03
DFZ2835-01D. 01-00
5″
DFZ2835-01E-00
DFZ2835-01B-05
DFZ2835-01B-03
DFZ2835-01E. 01-00
GB70-76 M12×60
DFZ2835-01E-02
7″
DFZ2835-01G-00
DFZ2835-01B-05
DFZ2835-01B-03
DFZ2835-01G. 01-00
GB70-76 M12×60
DFZ2835-01G-02
Blind Ram
DFZ2835-01H-00
DFZ2835-01B-05
DFZ2835-01B-03
DFZ2835-01H. 01-00
GB70-76 M12×60
DFZ2835-01H-02
DFZ2835-01C-00
DFZ2835-01B-05
6
User Manual of S-type Ram BOP
Sheet 3
Type S Ram Assembly Parts List
Be applicable to ： FZ35-35
2FZ35-35 FZ35-70
Ramtype
Type S
Item
Description
2FZ35-70
1
Assembly
2
Retracting Screw
Qty.
2
Ram Size
3
Ram Holder
1
4
Rubber
1
5
Retaining Screw
Block
2
1
Part Number
27/8″
31/2″
41/2″
DFZ1310.01G-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01G-01-00
GB70-76 M12×65
DFZ1310.01G-02
DFZ1310.01C-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01C-01-00
GB70-76 M12×65
DFZ1310.01C-02
DFZ1310.01B-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01B-01-00
GB70-76 M12×65
DFZ1310.01B-02
5″
DFZ1310.01A-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01A-01-00
GB70-76 M12×65
DFZ1310.01A-02
51/2″
DFZ1310.01H-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01H-01-00
GB70-76 M12×65
DFZ1310.01H-02
7″
DFZ1310.01D-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01D-01-00
GB70-76 M12×65
DFZ1310.01D-02
95/8″
DFZ1310.01F-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01F-01-00
GB70-76 M12×65
DFZ1310.01F-02
BlindRam
DFZ1310.01E-00
DFZ1310.01A-04
DFZ1310.01A-02
DFZ1310.01E-01-00
GB70-76 M12×65
DFZ1310.01E-02
※ ※ ※ ※ ※ ※ ※ ※ ※ ※ ※
5.1.2 Model HF Ram：
1
Structure feature：（figure 6）
2
Ram assembly has an integral design.
The ram rubber is composing seal. Ram
3
assembly consists of ram block, face seal and
top seal.
Procedure of changing rubber for
model HF ram：
Prize out the top seal and then face seal.
Smear grease before the new installation.
Install the face seal rubber (pay attention to
Figure 6 Model HF Ram
the face direction) and then install the top seal
into the ram block.
7
User Manual of S-type Ram BOP
Sheet 4
Type HF Ram Assembly Parts List
FZ5414,
FZ2335
Ram Type
HF
Item Number
Description
Assembly
Quantity
1
2
3
Top Seal
Block
Face Seal
1
1
1
Ram Size
Part
2 7/8″
2S23.01A.00
2S23.01A.03-00
2S23.01A.02-00
2S23.01A.01-00
3 1/2″
2S23.01B.00
2S23.01A.03-00
2S23.01B.02-00
2S23.01B.01-00
4 1/2″
2S23.01C.00
2S23.01A.03-00
2S23.01C.02-00
2S23.01C.01-00
5″
2S23.01D.00
2S23.01A.03-00
2S23.01D.02-00
2S23.01D.01-00
5 1/2″
2S23.01E.00
2S23.01A.03-00
2S23.01E.02-00
2S23.01E.01-00
Blind Ram
2S23.01F.00
2S23.01A.03-00
2S23.01F.02-00
2S23.01F.01-00
5″
DFZ5414 . 47B-00
DFZ5414 . 47A. 03-00
DFZ5414 . 47B-01
DFZ5414 . 47B . 02-00
13 3/8″
DFZ5414 . 47C-00
DFZ5414 . 47A. 03-00
DFZ5414 . 47C-01
DFZ5414 . 47C . 02-00
Blind Ram
DFZ5414 . 47A-00
DFZ5414 . 47A. 03-00
DFZ5414 . 47A-01
DFZ5414 . 47A . 02-00
FZ23-35
FZ54-14
5.1.3
Number
Model H Ram：
Structure feature：(figure 7)

The ram rubber is single-face composing seal in which the top seal and the face seal are separated.
Ram assembly consists of ram block, holder, face seal, top seal and retracting screw.

It reserves the advantage of good floating performance of model s ram.

Top seal and face seal that are separated can be changed independently depending on different
damage situation. So it’s easy to assemble and disassemble.

For various size drilling tools, only need to change relevant top seal and face seal including
shear/blind ram, other element are universal.
4
5
Procedure for changing rubber
and disassembly procedure:
 Unscrew the two retracting
3
screw, remove the holder.



2
Take down the top seal.
Take out the face seal.
1
Procedure for assembling is in
the
opposite
order
(pay
attention to the face direction).
Installation requirements are
the same as model s ram.
Figure 7
8
Model H Ram
User Manual of S-type Ram BOP
Sheet 5
Type H Ram Assembly Parts List
FZ28-70
FZ23-35
RamType
H
Item
Description
Assembly
Qty.
1
2
3
4
5
Retracting Screw
Ram Holder
Block
Top seal
Face seal
2
1
1
1
1
2FZ1835.04B.01-00
2FZ1835.04A.02-00
2FZ1835.04B.02-00
2FZ2870. 02A-02
2FZ2870. 02A-05
Ram Size
Part Number
FZ18-35
23/8″
FZ28-70
FZ18-35
27/8″
FZ28-70
FZ18-35
31/2″
FZ28-70
FZ28-70
FZ28-70
FZ28-70
FZ28-70
2FZ1835.04A-05
2FZ1835.04A-01
2FZ2870.
2FZ2870.
2FZ2870.
02A-00
02A-04
02A-03
2FZ1835.04C-00
2FZ1835.04A-05
2FZ1835.04A-01
2FZ2870.
2FZ2870.
2FZ2870.
02B-00
02A-04
02A-03
2FZ1835.04D-00
2FZ1835.04A-05
2FZ1835.04A-01
2FZ2870.
2FZ2870.
2FZ2870.
02C-00
02A-04
02A-03
2FZ2870.
2FZ2870.
2FZ2870.
02D-00
02A-04
02A-03
2FZ2870.
2FZ2870.
2FZ2870.
4 1/2"
02E-00
02A-04
02A-03
2FZ2870.
2FZ2870.
2FZ2870.
2FZ1835.04C.01-00
2FZ1835.04A.02-00
2FZ2870. 02B-02
2FZ2870. 02A-05
02F-00
02A-04
02A-03
2FZ2870.
2FZ2870.
2FZ2870.
7″
01-00
2FZ1835.04D.01-00
2FZ1835.04A.02-00
2FZ2870. 02C-02
2FZ2870. 02A-05
02A-04
02A-03
2FZ1835.04E-00
2FZ1835.04A-05
2FZ1835.04A-01
2FZ2870.
2FZ2870.
2FZ2870.
02A-04
01-00
2FZ2870. 02D.
2FZ2870. 02A-05
01-00
2FZ2870. 02E.
2FZ2870. 02A-05
01-00
2FZ2870. 02F.
2FZ2870. 02A-05
01-00
2FZ2870. 02G.
2FZ2870. 02A-05
01-00
2FZ1835.04E.01-00
2FZ1835.04A.02-00
2FZ2870. 02H-02
2FZ2870. 02A-05
2FZ1835.04E.02-00
2FZ2870. 02H.
02A-03
Variable Bore Ram
Some BOP is featured variable bore ram, which can seal
different size drilling tools in stated range without opening
BOP. So far, provide 3-1/2″～5 ″（13-5/8″－70Mpa），
structure model is H（figure 6）. Disassembly and assembly,
also rubber change are the same as model H ram.
9
2FZ1835.04D.02-00
2FZ2870. 02C.
2FZ2870. 02G-02
02G-00
2FZ1835.04C.02-00
2FZ2870. 02B.
2FZ2870. 02F-02
02H-00
5.1.4
01-00
2FZ2870. 02E-02
5 1/2"
全封
2FZ2870. 02A.
2FZ2870. 02D-02
5"
FZ18-35
FZ28-70
2FZ1835.04B-00
01-00
User Manual of S-type Ram BOP
Shear/Blind Ram:（figure 8）
5.1.5
1
2
3
4
5
6
7
8
9
10
11
The function of shear/blind
ram：
When
blowout
is
happening, shear/blind ram
can shear tube in the well in
order to shut off the well
completely. It can be used as
blind ram also in working
order.
In model F35-70 ram
BOP,
fit
shear/blind
model
SR3570
ram assembly
which can shear 5 inches，
19.5 pound per inch, S（135）
grade rig and completely
12
shut off the well.
Figure 8
Sheet 6
Item
13
Shear/Blind Ram
Parts List Of Shear Ram
Description
No.
SR3570
SR2870
Part Number
Part Number
Procedure for changing rubber
and disassembly procedure：
1
Upper Holder
SR3570-01
SR2870-01
1
2
Upper Rubber
SR3570.02-00
SR2870.02-00
1
unscrew the screw，remove
3
Upper Block
SR3570-03
SR2870-03
1
the
4
Shear Blade
SR3570-05
SR2870-05
GB3452.1-82
GB3452.1-82
28×2.65
28×2.65

Remove
the
lower
difficult
to
retainer ，
ram..
If
it’s
remove,
use
copper stick to strike the
5
O Ring
6
Copper Washer
SR3570-06
SR2870-06
6

Remove the rubber.
7
Nylok Screw
SR3570-.07-00
SR2870.07-00
6

Remove the nylok screw,
8
Lower Rubber
SR3570.09-00
SR2870.09-00
1
9
Lower Block
SR3570-08
SR2870-08
1
10
O Ring
GB3452.1-82
GB3452.1-82
51.5×5.3
48.7×5.3
11
Lower Holder
SR3570-10
SR2870-10
1
SR3570.04-00
SR2870.04-00
6
Retainer
GB893.1-86
GB893.1-86
Ring
φ63
φ62
12
13
Retainer
Screw
6
holder.
remove the shear blade.

The
procedure
of
disassembling upper ram is
6
the same as the lower ram.

The procedure of assembling
the upper and lower ram is
the opposite order. Clean
each part and smear grease
6
10
before installation.
User Manual of S-type Ram BOP
5.2 Manual-lock System
5.2.1 Ram Manual-lock System
All ram BOPs are equipped with manual-lock system. Manual-lock system closes and locks the ram by the
manual wheel, it consist of locking shaft, ram shaft, manual-operated rod and hand wheel etc. （Figure 8）
Its applications as follows: when hydraulic system is fail, rams can close by manual system timely to seal well
head; when sealing well for a long time, lock rams in closing position after close ram with hydraulic pressure. Turn
the hand wheel to the right, drive the locking shaft rotating through operating rod, because the locking shaft
shoulder presses against the cylinder head, it can’t go back, thus it can only drive the ram shaft to move toward the
well head center and locking the rams. (Figure 8 Ram)
Note：
Manual-lock system can only
close the rams, can’t open. If you want
to open rams closed by manual system,
you must unlock the system to original
position and then open the ram with
hydraulic pressure. It is the only
method
to
open
rams,
operation
procedure as following:

Turn the wheel hand to the left
untilmanual-lock
end, then turnsystem
back 1/8~1/4 circle
to avoid the locking shaft blocking at
the unlocking position
when the
temperature changes.

Open the rams with hydraulic
pressure.
5.2.2 Automatically Radial Hydraulic Locking System：

Principle：
Automatically radial hydraulic locking system pushes the dowel pin to lock the ram shaft
(figure 9) by oil pressure in the locking cylinder, which is installed behind the main cylinder, and
vertically ram shaft. Since the oil piping of both the locking cylinder and the main cylinder are
shunt-wound，dowel pin will lock the ram shaft automatically when close the ram. Because the
incline angle can lock by itself, the ram won’t become loose along the ram shaft if there is no oil
press to unlock the locking cylinder.
Only hydraulic take effect if the ram is to be opened. At first, unlock the locking cylinder, the
ram shaft reback and through the hole in the middle of dowel pin, then the ram open completely.
Ram open and close, lock and unlock is isochroous with the main cylinder’s open and close ram.
Needn’t other operation.
11
User Manual of S-type Ram BOP
Main cylinder Ram shaft Dowel pin
Locking cylinder
Display device
Figure 9 Automatically radial hydraulic locking system

Debug：
Normally, hydraulic locking location has been
debugged before leaving factory. If the ram is wearing a
bit after using, repair the ram shaft tail’s incline and
dowel pin’s incline.
5.3
Side Door Seal System
When the rated working pressure is more than 70MPa, door seal can use advanced
floated seal system（Fig 10、Sheet 7）, it can make the door stud’s torque less than general door
seal about 20％～30％, ensure the seal reliable when it is working. The labour strength is also
obviously decline when we open the side door.
When the rated working pressure is less than 70MPa, side door seal can use steel
grouping seal rings.
12
User Manual of S-type Ram BOP
Sheet 7 Float Sealing Setting
1
FZ35105
FZ28105
2FZ35105
2FZ28105
Be applicable to ：
Item
Description
Quantity
Part
2
Number
Number
1
骨架
1
2FZ35105A.03-01
FZ2870X-08-12
2
Upper Seal Ring
1
GB3452.1-82 487×7
FZ2870-D-02-07
3
Door Seal Ring
2
2FZ35105A.03-10
GB1235-76 460×5.7
3
Figure 10 Floated seal system
5.4 Ram Shaft Seal Structure and Ram Shaft Secondary Seal System
Seal structure of ram shaft are double directions seal to prevent medium in well flowing into the hydraulic which protects
hydraulic oil from being polluted and leaked, and reduce the wear of pump-valve element. The secondary seal system is
installed at ram shaft, when medium in well leaks out from the weep-hole; the normal seal failed and shall apply
secondary seal to remedy. Unscrew the plug in secondary seal hole, clockwise turn the piston screw with proper tool,
force the lower clubbed plastics seal grease into the sealing surface through the radial hole of the separation copper case,
forming the forced seal. Inject the seal grease until nothing leaks out from the weep hole, the capacity of injection should
not be over, and otherwise it will increase the wear of ram shaft and the resistance of opening and closing ram. If the
hydraulic oil in the cylinder leaks out from the weep hole, the sealing element in the ram shaft cylinder has failed, the
sealing element shall be changed.
Sheet 8
The secondary seal is only used under the ram shaft seal
FZ28105 Ram Shaft Seal Assembly
Item
has leaked seriously, as an emergency measure. If possible,
Description
FZ28-105
1
Back-up Ring
FZ28105DA.04-10
2
Wiper Ring
2FZ35105.03-11
3
Wiper Adapter
FZ2870X-08-17
Number
the ram shaft seal shall be changed at once and cannot
depend on the secondary seal to contain the well pressure
for a long time.
4
13
Lipring (cover)
FZ2870X-08-18
5
Lip ring (front)
FZ2870X-08-19
6
Lip ring (back)
FZ2870X-08-21
7
Seal Back-up Ring
FZ2870X-08-22
8
Septum ring
FZ2870X-08-20
9
Washer
FZ28105DA.04-6
User Manual of S-type Ram BOP
1
2
3 4
5
Figure 11
1
2
3
Figure 12
Sheet 9
6
7
8
9
FZ28105 Ram Shaft Seal Parts
4
5
6
7
8
9
Ram Shaft Seal Body diagram
Ram Shaft Seal Assembly of Various models
Item
Description
FZ23-35
FZ28-35
FZ28-70
FZ35-35
FZ35-70
FZ35105
FZ54-14
Number
1
F03-35 Back-up
F03-35 Back-up
Ring120
Ring 120
Back-up Ring
DFZ5414-33
GB/T893.1 130
SFZ1310-48A
DFZ5414-33
2
Wiper Ring
Q/ZB336 90
Q/ZB336 90
Q/ZB336 100
Q/ZB336 100
2FZ35105A.03-11
Q/ZB336 100
3
Wiper Adapter
2FZ2821D-05
2FZ2821D-05
2FZ5414B-07
2FZ5414B-07
2FZ35105A.03-12
2FZ5414B-07
4
Lipring (cover)
2FZ2821D-04
2FZ2821D-04
2FZ5414B-05
2FZ5414B-05
FZ2870X-08-18
2FZ5414B-05
5
Lip ring (front)
2FZ2835DD.02.04-00
2FZ2835DD.02.04-00
2FZ5414B.06-00
2FZ5414B.06-00
FZ2870X-08-19
2FZ5414B.06-00
6
GB3452.1
GB1235
O Ring
GB3452.190X3.55
GB3452.1 90X3.55
GB3452.1 136X3.55
GB1235 105X3.1
100X3.55
105X3.1
2FZ2870.03-03
DFZ5414-31
SFZ1310-20
DFZ5414-31
GB3452.1
GB1235
GB3452.1 150X3.55
GB1235 120X3.1
112X3.55
120X3.1
7
Support
2S23.03-03
2FZ2835DD.02-05
GB3452.1 103X3.55
GB3452.1 103X3.55
ring
8
O Ring
9
Lip ring (back)
2FZ2835DD.02.04-00
2FZ2835DD.02.04-00
2FZ5414B.06-00
2FZ5414B.06-00
FZ2870X-08-21
2FZ5414B.06-00
10
Back-up Ring
2FZ2821D-03
2FZ2821D-03
DFZ5414-28
DFZ5414-28
2FZ35105A.03-13
DFZ5414-28
1
F03-35 Back-up
F03-35 Back-up
Back-up Ring
DFZ5414-33
GB/T893.1 130
SFZ1310-48A
DFZ5414-33
Ring120
Ring 120
14
User Manual of S-type Ram BOP
5.5 Locking Shaft Seal Structure
The locking shaft seal is installed on the cylinder head, preventing the hydraulic oil leaking out
and preventing the dust getting into the cylinder.（Figure 13、Table 10）
1
2
3
4
6
5
Figure 13 Locking Shaft Seal
Sheet 10 Locking Shaft Seal Assembly
FZ2835
2FZ2835
Be applicable to：
FZ3570
FZ3535
FZ2870
FZ5414
2FZ3570
2FZ3535
2FZ2870
2FZ5414
FZ35105
2FZ35105
Item
Description
Quantity
Part Number
1
Retainer Ring
2（4）
Retainer Ring 95
2
Thrust Bushing
2（4）
SFZ1310-21
3
Packing
6（12）
SFZ2835-18
DFZ5414-25
4
BackingHydraulicseal
2（4）
SFZ2835-17
DFZ5414-24
5
Wiper Adapter
2（4）
SFZ1310-22
DFZ5414-23
6
Wiper Ring
2（4）
SFZ1310-23
DFZ5414-22
2FZ3535-17A
DFZ5414-26
Note: Quantities shown for single-ram Bop. Quantities in the parentheses shown for double-ram BOP.
15
User Manual of S-type Ram BOP
5.6 Hinge Structure
Sheet 11 Hinge Bracket Assembly（FZ35105）
Item
Description
Quantity
Part
1
Hinge Pin
4（8）
2FZ2870.01-01
2
O Ring
4（8）
structure has following features:
3
Hinge (2)
2（4）
2FZ35105A.06.01-00
1. Load hinges support the full weight of
4
O Ring
12（24）
GB3452.1-82 48.7×3.55
doors;
needle
5
Hinge Bracket
4（8）
2FZ35105A.06-02
bearing and palm thrust are installed on
6
Bearing
4（8）
GB301-64
Type A Hinge Structure（Figure 14）
：
Door hinge are designed that the hinge
separates from the fluid hinge. This
self-lubricated
radial
the load hinges for quick and easy
opening and closing the doors.
2. The fluid hinges only connect with oil
pipe and seal oil pressure, they don’t
support the weight of the side door, the
Washer,
7
Adjust
door can be adjusted with load hinges.
63×3.55
8107
8（16）
2FZ2870.01-04
GB290-64 941/30
NeedleBearing
4（8）
9
O Ring
4（8）
GB3452.1-82
10
O Ring
4（8）
GB3452.1-82 33.5×3.55
4（8）
2FZ35105A.06-03
4（8）
2FZ2870.01-06
Hydraulic
11
Connection
body without disassembly the side door.
3. The up and down position of side
GB3452.1-82
8
can prolong the life of seal assembly and
change the seal assembly directly on the
Number
12
Spring
Hinge
13
Bracket (2)
14
Hinge (1)
2（4）
2（4）
20×2.65
2FZ35105A.12.01-00
2FZ35105A.06.04-00
2FZ35105A.06.05-00
Note: Quantities shown for single-ram Bop. Quantities in the
parentheses shown for double-ram BOP.
1
2
4
3
5
6
Figure 15
Figure 14
Type A Hinge Structure
16
Type B Hinge Structure
User Manual of S-type Ram BOP
Figure 16 Type C Hinge Structure
sheet12 Type C Hinge Structure Part List（FZ2335）
Item
Description
Number
Quantit
Part Number
y
1
Hinge Block
4（8）
2S23-13
2
O Ring
8（16）
GB3452.1-2005 33.5×3.55
Side entrance
2（4）
2S23.03-01 right
3
2S23.04-01 left
4
5
Screw
16（32） GB70-85
Parallel pins with
8（16）
M16×70
GB120-86
B16×80
internal thread
Note: Quantities shown for single-ram Bop. Quantities in the parentheses
shown for double-ram BOP.
Sheet 13 Hinge Bracket Assembly
FZ2835
FZ2870
FZ3535
FZ5414
2FZ2835
2FZ2870
2FZ3535
2FZ5414
Be applicable to:
序号
Description
1
Hinge (2)
2
Hydraulic Hinge
Qty.
2（4）
Part Number
SFZ2835.30-00
2FZ2870.01.08-00
2FZ3535.11.07-00
DFZ5414.02-00
SFZ2835-33
2FZ2870.11.01-00(右)
2FZ3535.12.01-00(右)
DFZ5414-50
2FZ2870.01.07-00(左)
2FZ3535.11.02-00(左)
2（4）
Bracket (2)
3
Spring
4（8）
SFZ2835-31
2FZ2870.01-06
2FZ3535.11-03
SFZ2835-31
4
HydraulicConnection
4（8）
SFZ2835-32
2FZ2870.01-05
2FZ3535.11-04
DFZ5414-37
5
O Ring
GB1235-76
GB3452.1-82
GB1235-76
GB1235-76
35×3.1
33.5×3.55
40×3.1
30×3.1
GB1235-76
GB3452.1-82
GB1235-76
GB1235-76
25×3.1
20×2.65
25×2.4
30×3.1
4（8）
6
O Ring
4（8）
17
User Manual of S-type Ram BOP
7
Needle Bearing
GB290-64
GB290-64
GB290-64
GB290-64
941/35
941/30
941/30
942/30
4（8）
8
Washer, Adjust
8（16） …
2FZ2870.01-04
2FZ3535.11-05
…
9
单向推力球轴承
4（8）
…
GB301-64 8107
GB301-64 8107
…
10
Hinge Bracket
4（8）
SFZ2835-29
2FZ2870.01-03
2FZ3535.11-05
DFZ5414-05
11
O Ring
GB1235-76
GB3452.1-82
GB1235-76
GB1235-76
50×3.1
48.7×3.55
55×3.1
60×3.1
SFZ2835.26-00
2FZ2870.01.08-00
2FZ3535.11.01-00
DFZ5414.01-00
GB1235-76
GB3452.1-82
GB1235-76
GB1235-76
63×3.1
63×3.55
70×3.1
68×3.1
SFZ2835-28
2FZ2870.01-01
2FZ3535.11-08
DFZ5414-03
GB1235-76
GB3452.1-82
GB1235-76
GB1235-76
45×3.1
48.7×3.55
55×3.1
45×3.1
8（16）
12
Hinge (1)
13
O Ring
2（4）
4（8）
14
Hinge Pin
15
O Ring
4（8）
4（8）
Note: Quantities shown for single-ram Bop. Quantities in the parentheses shown for double-ram BOP.
Type B Hinge Structure（Fig 15）
：
Side door hinge is connect with
side door, long hinge pin through
the top and bottom hinge （Fig 16）,
Sheet 14 Type B Hinge Structure Part List
the route of hydraulic oil pump into
FZ3570
Be applicable to:
the cylinder as following:
2FZ3570
Item
Description
Qty.
Hinge pin
1
Plug
4（8）
SFZ1310-04
Hinge
2
Hinge Pin
2（4）
SFZ1310-03
Side door buried oil way
3
Oil Cup
2（4）
GB1152-79
Oil pipe（cylinder）
4
HingeBracket
2（4）
SFZ1310-05（L）SFZ1310-40（R）
Cover of cylinder
5
Door
2（4）
SFZ1310-26（L）SFZ1310-41（R）
Cylinder
6
O Ring
16（32）
Hinge end hole
Part Number
GB1235-76
M10×1
60×5.7
All along side the oil way use the
Note: Quantities shown for single-ram Bop. Quantities in the parentheses
“O” seal ring.
shown for double-ram BOP.
18
User Manual of S-type Ram BOP
6． Method of Installation
6.2 Pressure Test Running after Installation:
The installed ram BOP and the assembled well
equipment are performed hydraulic pressure test
for inspecting the reliability of all connections
and the seal characteristics; it can be used after
the test is good.

Each ram should be checked by closing and
opening twice for each controlled by the driller’s
console and remote control platform to inspect
correspondence of opening and closing with
practical operation and correctness of lines
connections. And air in the oil line should be
removed.
 Test the manual lock system to close and lock the
rams for inspecting their flexibility and
reliability. Note that manual –lock system can
only close the rams, but cannot open the rams, if
you want to open the rams you must unlock the
system manually and then open the ram with
hydraulic pressure. Before manually closing, the
relevant hydraulic control valves must be turned
to their “closed” position. When locking and
unlocking, turn the hand wheel to the left or right
until dead end, then turn back 1/8~1/4 circle, and
put a card on the hand-wheel to note the circles.
6.1 Installation：

Ram BOP shall be sealing tested under rated
working pressure before use and be transported
to well site after the test is good.

Install it according to well control specification
requirements of BOP combination form.

Installation orientation should be: The hand
wheel and operation rod of manual-lock system
should be located at the two sides of the derrick
door. The outlet flange of the body should face
side door in order to observe the leaking of the
ram shaft packing leaking export.

Manual-lock system shall be fully installed and
fixed and put a card on the hand wheel to note
the closing circles.

Ram size used in the BOP must be complying
with the drill tool used in the well and mark the
ram size on the driller’s console and remote
control platform to avoid from wrong
installation.

7．Operation and Caution
7.1 The ram BOP is used to seal off the drill’s tool,
which has the same size with pipe ram or the blind
ram during the blowout. Closing well for a long time,
lock ram with locking system hand-control locking
situations shall be marked on control platform to
prevent wrong operation.
7.2 When open or close side door, controlling
main-fold hydraulic pressure must be released to
protect hinge bracket O-ring. Ram movement is
not permitted on the side door bolt released to
protect ram, ram shaft and hinge from damage. For
protecting wellhead, no matter ram BOP is fixed
on wellhead flange or not. The two side doors
cannot be opened simultaneously.
7.3 Prohibit releasing well pressure by opening ram.
Before opening ram BOP, check if the manual-lock
system kept in unlocking position each time. And
after that, check if the ram remaining fully opened
(fall back to the body) and it cannot stay in the
middle position to prevent ram from drilling tool
bumping.
7.4 Only the ram shaft-sealing element is leaking
seriously, the secondary seal system is used to
inject the seal grease when emergency. The seal
grease of injection is not over but stop leakage to
prevent the ram shaft and the sealing element from
damaging. If possible, the ram shaft seal element
shall be changed at once, can not depend on the
secondary seal to contain the well pressure for a
long time
7.5 When there is drilling tool in the well, prohibit
closing the blind ram.
19
User Manual of S-type Ram BOP
7.6 After reaching objective interval, the rams
should be opened and closed one time ever day to
see if they are flexible. After the drill string is
pulled out of the well, should check whether blind
ram open and close is flexible, whether manual
lock system is in gear.
7.7 When the rams cannot closed or opened under
the normal control pressure, can treat with on the
base of analyzing reason seriously. When
requirement, you can open the passby vavle of
control system main-fold to increase the pressure
and use directly accumulator pressure 21MPa to
control it. Under the specific circumstance, use
gas-fluid pump to inflate directly the pressure to
31.5MPa to control it. Before using the hinge
pressure, turn off the stop valve and cannot use it
for a long time.
7.8 After usage of BOP, keep BOP ram opened
fully for easy repair.
7.9 At least one set spare ram which has the same
size with the being used ram should be prepared at
well site to change the damaged ram in time.
7.10 Note: Keep hydraulic oil clean.
8．Servicing and Maintenance
8.1 Maintenance Notes:

After every testing at site, remove the hydraulic pipes of ram BOP and block off
bore with blockage. Clear outside of BOP and ram house completely and coat
surface of bolt hole, ring groove, top sealing of ram, bottom and side supporter
and guide ribs, door hinge with water-proof lubricating oil.

Gather and case the connections such as gasket, bolt, nut and special tools to
prevent being lost.

Screw tightly the stud nuts in timely in case loose stud nuts.

Keep hydraulic oil clean and prevent dirty into the cylinder, which avoid to
damage cylinder and piston.
8.2 All rubber spare parts shall be
stored reasonably as following:

Edit number according the time
transported in the storehouse and
always use the oldest rubbers first.

Rubber must be stored in a free
state in dark and dry room,
prohibit putting them in the open
air. Rubber cannot be compressed.
It is better to put the rubber in a
wooden box. O-ring cannot be
hung on the wooden post.
 Rubber cannot contact corrosive,
away from electric motor and high
voltage equipment, because these
can easily produce ozone to
corrode rubber.
8.3 Replacement of ram assembly and ram sealing
rubber:
Ram assembly and ram sealing rubber are the key
part sealing well in a BOP. If damaged, BOP is
useless in sealing well. So it is very important to keep
it well and replace it in time if there is damage in
sealing surface. Procedures of ram rubber
replacement:

Open the ram completely with hydraulic oil.

Remove bolts that retain the side door. Note
when BOP installed on well side, door bolt
cannot be removed if pressure exciting in hole.

Pull out ram assembly from ram shaft tail.

About ram rubber replacement refers to 5.1
introduction of ram assembly replacement.
20
User Manual of S-type Ram BOP
8.4 Repair and maintenance of oil cylinder
assembly:
Procedures of cylinder assembly disassembly:

Open the rams completely through hydraulic
pressure first. If side door is in opened state,
close side door and at least screw a bolt at the
opposite side of hinge bracket.

Put a clean basin under cylinder to prevent oil
from flowing on ground.

Remove cylinder cover studs and nuts, screw
off cylinder cover, take out retainer ring and
take down locking shaft-sealing ring in
cylinder cover.

Drive out locking shaft from cylinder cover
(refer to fig 8 Ram Locking Structure)

Remove cylinder.

Release fixed screw in piston locking cap.

Remove piston lock-cap and pull out piston
lightly.

Open side door, take off ram, and pull out
piston rod (ram shaft).

Remove retainer and take out ram shaft
sealing ring.
Fig 17 Structure of Piston Locking Sealing
8.5 Checking and repair after cylinder disassembly

Inner wall of cylinder
When wearing exceeds limit 0.4mm or emerging
vertical scratch and coating peeling off in cylinder inner
wall, it cannot prevent leaking oil even if changing a
8.6 Cylinder assembly installation:
new piston seal ring. It should be changed with a new
Installation step are reversal disassembly steps
cylinder. At the same time, check piston related parts
of it. But note the following items:


and find out scratching reasons and solve the troubles. If
Check if there are burrs and sharp edges on
scratch is shallow lined or dotted, amend them with
parts. If there is, get rid of them to prevent
abrasive paper and abrasive stick.
seal ring from scratch and keep parts clean.

and locking shaft
When set seal ring, lubricate sealing ring area
When there is scratch on sealing surface, use the
and related area for easy assembly.

The outer diameter of sealing surface of ram shaft
same inspection and treatment method as the cylinder. If
Take care lip seal ring’s direction; ensure lip
coating peeling off, that will cause leakage, change them
mouth against pressure side. Ensure seal ring
with the new parts.
passing through thread part smoothly.

Seal ring
Check sealing parts edges to ensure no scratch,
wear and tear, scar and aging first. If there is, change
them.

Piston
When outer diameter wearing exceeds limit 0.25
mm, repair or change it.
21
User Manual of S-type Ram BOP
8.7 Daily Maintenance
Please check the jamming situation of the shell cavity when have to operate the ram assembly
over working pressure of 3.5MPa (5000psi)
Please operate and test the BOP according to API RP53 standard once a week.
Warning: Please DO NOT close the pipe ram assembly or variable ram assembly when there isn’t
any drill string in the well so as to avoid damaging the ram rubber.
8.8 Operating Maintenance
Please dismantle the BOP once a year or half a year in cold regions.
Clean all the parts, DON’T use metal brush to clear the seal position.
Replace all the sealing rubbers, gaskets, and O rings.
Decide whether to change it according to the actual situation of ram rubber in ram assembly.
Maintain or replace the damaged metal parts.
Wash the piston rod when dismantle the BOP, measure the degree of curvature of the hook
position, which should be small than 1mm, and carry on Ultrasonic Test. (if degree of curvature
over 1mm, should consider replace it )
22
User Manual of S-type Ram BOP
9．Common troubles and settlements
The reasons and settlements of troubles refer to Sheet 15.
Sheet 15
The reasons and settlements of troubles
Item
Trouble
Cause
Settlement
Number
1
The medium inside well
flows
out
from

the
clearance between the

body and door.

2
3
4
5
Ram movement direction
is not conformance with
nameplate
mark
of
control valve.
Hydraulic system is in
order, but ram can not
closed fully.
The medium inside well
flows into the cylinder
and there contains water
in cylinder oil.
BOP
hydraulic
part





cannot hold pressure.
6
There is leakage on side
door hinge connections.
7
It cannot hold pressure
when ram closed.
8
Control pipe is in order,
but ram cannot he
opened with hydraulic
pressure.







Seal ring between the
body and side door is
damaged.
Connection bolts released
between the body and side
door.
There is dust or damage
on the body and side door
seal surface.
The pipelines between
control panel and BOP
have been connected
wrongly.
There are foreign materials,
sand and mud on ram
contact ends.
Piston rod seal ring
damaged.
Piston rod distortion or
surface scratch.
BOP cylinder, piston, piston
rod, seal ring damaged,
seal surface scratched

Seal surface scratched,
seal ring worn.
Ram seal rubber damaged.
Upper seal surface of the
ram chamber damaged.
The ram size is not in
accordance
with
the
drilling tool in the well.

The locking shaft isn’t
unlocked.
Ram plugged with sand
and mud.
Piston seal ring damaged.




Reverse pipes that
connect BOP.

Wash ram and side








23
Change
damaged
seal ring.
Screw
up
all
connection bolts.
Remove surface dust
and repair damaged
parts.
door.
Change
damaged
piston piston rod seal
ring.
Repair the damaged
piston rod.
Replace all damaged
seal rings and repair
seal
surface
or
change it with the
new parts.
Repair seal surface
and replace seal ring.
Change ram seal
rubber.
Repair seal surface.
Change the relevant
size ram.
Unlock locking shaft.
If damaged, change it.
Remove sand and
mud. Increase control
pressure.
Change piston seal ring.
User Manual of S-type Ram BOP
10．Ordering Information
When ordering ram BOP, please show following content:

Model and size of single or double ram BOP.

Connection of upper and lower main bore.

Size of rams inside (other size of rams are ordered
otherwise)

Manual locking structure.

Working temperature range.

Ring groove requires corrosion-resistant overlay or not.

Spare parts and other accessories needed.

Other special requirements.
Note: If the orders do not show above-mentioned contact,
then refer to the manufactory’s standard supplying.
Company: Shanghai ShenKai Petroleum & Chemical Equipment Co. Ltd.
Address: No.1769 PuXing Road MinHang Shanghai
Post Code: 201114
Tel: 021-56650478（Marketing Apartment）
Fax：021-56560478
24
User Manual of S-type Ram BOP
《User Manual of S-type Ram BOP》
page 3
Table 1
type
FZ1835
mm ( in )
Bore
( psi )
hydraulic pressure
Piston diameter
FZ18105
35 (5000)
70 (10000)
FZ2335
FZ2821
FZ2835
228.6(9")
179.4 (7 1/16″)
MPa
rating working pressure
FZ1870
Specification and Technical Data of
105 (15000)
35 (5000)
35 (5000)
FZ2870
FZ28105
FZ3535
70 (10000)
FZ3570
FZ35105
346.1 (13 5/8″)
FZ5414
FZ5321
539.8（21 1/4
″）
527.1（20 3/4
″）
105 (15000)
35 (5000)
70 (10000)
105 (15000)
14 (2000)
21 (3000)
≤10.5
MPa
mm
Single Ram BOP
279.4 ( 11″)
21 (3000)
total 24 pages
150
180
280
220
220
220
250
355
250
355
355
250
250
Volume of Opened Hydraulic
Cylinder L
2×1.6
2×2.22
2×6.1
2×4.7
2×2.68
2×5.2
2×6.6
2×14.4
2×7.4
2×19.9
2×17.44
2×13.2
2×12.2
Volume of Closed Hydraulic
Cylinder
L
2×1.9
2×2.5
2×6.56
2×5.3
2×3.22
2×5.45
2×7.4
2×16.7
2×8.3
2×20
2×19
2×15.4
2×13.6
Locking Mechanism
bolt
M36×3
M39×3
M39×3
M42×3
M36×3
M48×3
M45×3
M50×3
M42×3
M48×3
M58×3
M42×3
M52×3
ring
R46
BX156
BX156
R50
R53
R54
BX158
BX158
BX160
BX159
BX159
R73
R74
Locking Shaft
non-rising
stem L
1392
1720
1842
2036
1846
2265
2370
2640
2468
3274
3074
3366
3424
2615
2710
Connection
bolt、ring
overall
dimensions
mm
manual operation
Locking Shaft
rising stem L
weight
kg
remark
2940
3956
W
582
715
934
815
998
860
950
1168
970
1488
1305
1205
1238
H
644
856
922
820
710
900
1076
1244
950
1275
1420
915
1070
1046
1750
3405
2033
1520
2980
3540
7154
4398
9485
10105
6605
5862
Shear Ram
Shear Ram
Variable Bore
Ram
Shear Ram
Variable Bore
Ram
Shear Ram
Variable Bore
Ram
Shear Ram
25
User Manual of S-type Ram BOP
Data in the table with type A for example
Table 2
type
Bore
2FZ1835
mm ( in )
rating working pressure
2FZ18105
MPa
35 (5000)
70 (10000)
2FZ2335
2FZ2821
2FZ2835
228.6(9")
179.4 (7 1/16″)
( psi )
hydraulic pressure
2FZ1870
Specification and Technical Data of
105 (15000)
35 (5000)
Double Ram BOP
2FZ2870
2FZ28105
2FZ3535
279.4 ( 11″)
21 (3000)
35 (5000)
70 (10000)
2FZ3570
2FZ35105
346.1 (13 5/8″)
2FZ5414
2FZ5321
539.8(21 1/4″)
527.1)20 3/4″)
105 (15000)
35 (5000)
70 (10000)
105 (15000)
14 (2000)
21 (3000)
≤10.5
MPa
Piston diameter mm
150
180
280
220
220
220
250
355
250
355
355
250
250
Volume of Opened Hydraulic
Cylinder L
4×1.6
4×2.22
4×6.1
4×4.7
4×2.68
4×5.2
4×6.6
4×14.4
4×7.4
4×19.9
4×17.44
4×13.2
4×12.2
Volume of Closed Hydraulic
Cylinder
L
4×1.9
4×2.5
4×6.56
4×5.3
4×3.22
4×5.45
4×7.4
4×16.7
4×8.3
4×20
4×19
4×15.4
4×13.6
Locking Mechanism
bolt
M36×3
M39×3
M39×3
M42×3
M36×3
M48×3
M45×3
M50×3
M42×3
M48×3
M58×3
M42×3
M52×3
ring
R46
BX156
BX156
R50
R53
R54
BX158
BX158
BX160
BX159
BX159
R73
R74
Locking Shaft
non-rising
stem L
1392
1720
1842
2036
1846
2265
2370
2640
2468
3274
3074
3366
3424
2615
2710
Connection
bolt、ring
overall
dimensions
mm
manual operation
Locking Shaft
rising stem L
Weight
kg
remark
2940
3956
W
582
715
934
815
998
860
950
1168
970
1488
1305
1205
1238
H
918
1262
1372
1200
1090
900
1076
1784
950
1740
1420
1480
1480
1795
3320
6291
3669
2566
4910
6310
12686
6620
14340
16763
10724
12800
Shear Ram
Shear Ram
Variable Bore
Ram
Shear Ram
Variable Bore
Ram
Shear Ram
Variable Bore
Ram
Shear Ram
26