17.28
STAINLESS STEEL PIPE – GROOVED VALVES
Super Duplex Stainless Steel
Vic-Ball Valve
SERIES 726D
The Series 726D is a high-pressure full port ball valve with grooved ends. This two-piece,
end-entry valve features a floating ball for lower torque requirements. Series 726D valves are
rated up to 1200 psi/8273 kPa. The valve features a super duplex stainless steel ball, body
and end cap. The Series 726D also features a unique composite seat design which provides
excellent sealing ability. Series 726D features an ISO 5211 standard mounting
pattern for convenient mounting of remote actuation. A full range of power actuators can also
be mounted on the valve.
MATERIAL SPECIFICATIONS
Body and End Cap: Super duplex stainless steel, ASTM A890-5A (CE3MN).
Ball: Super duplex stainless steel, ASTM A182-F53 or ASTM A890-5A (CE3MN).
Seats: (PTFE) Polytetrafluoroethylene, (HDPE) High-density polyethylene
Seals: EPDM.
Stem: Super duplex stainless steel, ASTM A890-5A (CE3MN) or Zeron 100
Optional handle kits: (For 2"/50mm and 3"/80mm valves only) 300 Series stainless steel
JOB/OWNER
CONTRACTOR
ENGINEER
System No._______________________________
Submitted By_____________________________
Spec Sect________________Para____________
Location_________________________________
Date____________________________________
Approved________________________________
Date____________________________________
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VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2011 VICTAULIC COMPANY. ALL RIGHTS RESERVED.
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STAINLESS STEEL PIPE – GROOVED VALVES
Super Duplex Stainless Steel
Vic-Ball Valve
SERIES 726D
DIMENSIONS
SERIES 726D BARE VALVE
2 – 6"/60 – 150 mm
B
A
J
K
90°
P
R
M
CDE F
L
Valve Size
Actual
Outside
Nominal
Diameter
Diameter
Inches/mm Inches/mm
PERFORMANCE
N
G
H
Approx.
Weight Each
Dimensions – Inches/mm
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
Lbs/kg
2
50
2.38
60.3
.562
14.3
.313
7.95
2.38
60.3
2.25
57.2
2.00
50.8
1.90
48.3
3.03
77.0
6.07
154.2
3.32
84.3
3.95
100.3
2.13
54.0
3.38
85.9
0.55
13.97
0.27
6.80
1.97
50.0
8.9
4.0
3
80
3.50
88.9
.562
14.3
.313
7.95
3.50
88.9
3.34
84.9
3.07
78.0
2.92
74.2
4.01
101.8
8.00
203.2
4.69
119.1
5.38
136.7
3.13
79.4
4.75
120.6
0.67
16.99
0.33
8.33
2.76
70.0
26.8
12.2
4
100
4.50
114.3
.625
15.9
.375
9.52
4.52
114.7
4.33
110.1
4.00
101.6
3.85
97.8
4.62
117.3
9.21
233.9
5.88
149.4
6.68
169.7
3.82
97.2
6.00
152.4
0.75
19.00
0.43
10.80
4.02
102.0
46.9
21.3
6
150
6.63
168.3
.625
15.9
.375
9.52
6.64
168.7
6.46
164.0
6.00
152.4
5.90
149.9
6.15
156.3
12.31
312.6
7.63
193.8
8.78
233.0
5.63
142.9
8.25
205.7
1.06
27.00
0.50
12.80
4.92
125.0
126.5
57.4
CV values for flow of water at +60˚F/+16˚C through the valve in the fully open position are shown in
the table below.
Formulas for CV Values:
Formulas for KV Values:
Where:
m3
Q = Flow (hr. )
∆P = Q2
Kv
Q = Kv x
∆P
Valve Size
Max.
Working
Pressure
Flow Coefficient
(Fully Open)
Actual
Outside
Nominal
Diameter
Diameter
Inches/mm Inches/mm
psi/kPa
Cv Values
Kv Values
2
50
2.38
60.3
1200
8273
600
519
3
80
3.50
88.9
1200
8273
1350
1168
4
100
4.50
114.6
1200
8273
2500
2163
6
150
6.63
168.3
1200
8273
6000
5190
∆P = Pressure (bar)
Kv = Flow Factor
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VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2011 VICTAULIC COMPANY. ALL RIGHTS RESERVED.
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STAINLESS STEEL PIPE – GROOVED VALVES
Super Duplex Stainless Steel
Vic-Ball Valve
SERIES 726D
VALVE TORQUE REQUIREMENTS
Source:
These torque values were derived from test data in water ambient temperature.
Torque Factors:
All torque values are for normal service conditions where corrosion is expected to be minor, and
the media is clean and nonabrasive. The torque shown should be multiplied by the appropriate
factor listed below.
Typical fluid torque factors commonly used in the industry are:
Water and other liquids: 1.0; Dry gases: 1.5 to 2.0
Breakaway Factor:
Ball valves will require additional torque if they are fully closed under pressure for a few hours. A
breakaway factor of 2:1 should be applied or decrease the system pressure to break the ball loose.
Actuator Factor:
A minimum factor of 1.2 is recommended for direct actuated valves. Apply the actuator factor to
the higher of the breakaway or service factor.
Combining Torque Factors:
When multiple torque factors apply, they are combined by multiplying them. Example: A 4-inch/
114.3mm direct actuated ball valve is used in water service at 800 psi/55Bar. The minimum
torque output from the actuator would be 634 ft-lbs/850 N.m 264 (torque from the table) x 1.0
(service factor for water) x2.0 (breakaway factor) X 1.2 (actuator factor) = 634 ft-lbs.
Size
Torque – Foot Pounds/Newton Meters
Differential Pressure – psi/Bar
Nominal
Size
In./mm
Actual
Outside Dia.
In./mm
0/0
200/14
400/28
600/41
800/55
1000/69
1200/83
2
50
2.375
60.3
4
5
14
19
18
24
30
41
40
54
55
75
62
84
3
80
3.500
88.9
5
7
20
27
29
39
42
57
54
73
68
92
87
118
4
100
4.500
114.3
10
14
71
96
101
137
204
277
264
358
294
399
333
451
6
150
6.625
168.3
35
47
223
302
351
476
448
607
509
690
682
925
811
1100
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VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2011 VICTAULIC COMPANY. ALL RIGHTS RESERVED.
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STAINLESS STEEL PIPE – GROOVED VALVES
Super Duplex Stainless Steel
Vic-Ball Valve
SERIES 726D
BALL VALVE NUMBERING SYSTEM
FOR SERIES 726D
B - 020 - 2 3 7 7 - 00
Type
Act.
In.
Size
Code
2"
3"
4"
6"
020 2 - 1200 psi
030
040
060
B
Pressure
Rating
Body
3 - Super Duplex
Ball & Stem
7 - Super Duplex
Seat
7 - Reinforced
PTFE
w/ E Seals
Operator
00 - Bare
01 - Manual handle
(2"/50mm & 3"/80mm valves only)
INSTALLATION
Reference should always be made to the I-100 Victaulic Field Installation Handbook or www.victaulic.com
for the product you are installing. Handbooks are included with each shipment of Victaulic products
for complete installation and assembly data, and are available in PDF format on our website at
www.victaulic.com.
WARRANTY
Refer to the Warranty section of the current Price List or contact Victaulic for details.
NOTE
This product shall be manufactured by Victaulic or to Victaulic specifications. All products to be
installed in accordance with current Victaulic installation/assembly instructions. Victaulic reserves the
right to change product specifications, designs and standard equipment without notice and without
incurring obligations.
For complete contact information, visit www.victaulic.com
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5812 REV B
UPDATED 07/2011
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2011 VICTAULIC COMPANY. ALL RIGHTS RESERVED.
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