20” INSPECTION MANHOLE
Clamp Ring Style
•
EASILY INSTALLED
•
LOW MAINTENANCE
•
ECONOMICAL
•
LARGE OPENING
Tiona Inspection Manholes provide quick, safe entrance and exit from your tanks. Heavy gauge metal and welded
construction minimizes maintenance. Manholes are certified and marked in accordance with 49CFR178.345-5 with a
test pressure of 36 psi [2.48 bar].
Cover Plate
Clamping Ring
Clamping Bolt
and Washer
Clamping
Bolt Nut
Wt.
Assembly No.
Steel Zinc Plt.
Steel Zinc Plt.
Steel Zinc Plt.
Brass
21.7 lb.
8008BX*
Stnls 304
Stnls 304
Stnls 304
Stnls 304
22.2 lb.
Stnls 316
Stnls 304
Stnls 304
Stnls 304
22.2 lb.
* Add letters to part number to designate seal material. See
material table at right for designation.
[10.1 kg]
[10.1 kg]
8008CX*
8008DX*
Letter
Gasket Material
B
Buna-N
Temp. Range
-40°F to +220°F
V
Viton
-20°F to +400°F
EPDM (White)
-40°F to +260°F
W
White Hypalon
-40°F to +250°F
T
PTFE Envelope w/
White Hypalon Insert
-40°F to +250°F
P
“X” in assembly number designates manhole collar sold
separately. Collars are available in aluminum, steel and
stainless steel. Please see parts page for part numbers.
[9.8 kg]
[-40°C to +104°C]
[-29°C to +204°C]
[-40°C to +127°C]
[-40°C to +121°C]
[-40°C to +121°C]
During installation and welding to the tank, care should be exercised to insure collars remain flat and round. If
necessary, a welding fixture should be used to prevent distortion.
TM
INDUSTRIES, INC.
WARREN, PA.
Tel. (814) 723-1250 ⋅ Fax (814) 723-7030 ⋅ E-Mail: betts@bettsind.com ⋅ Web Site: www.bettsind.com
August 2008
Section 86 Page 1A
Parts List
20” Inspection Manhole
NO.
REQ.
1
1
Cover Plate
2
1
Bolt – Clamp Ring (3/8 – 16 Thd.) *
3
1
Nut – Clamp Ring (3/8 – 16 Thd.) *
4
1
Washer – Clamp Ring *
5
1
Clamp Ring
6
7
DESCRIPTION
Manhole Gasket (Channel Style)
B
V
P
W
Manhole Gasket (Flat Style)
T
1
1
B
C
D
Manhole Collar (Sold Separately)
MATERIAL
Steel Zinc Plated
304 Stainless Steel
316 Stainless Steel
Steel Zinc Plated
304 Stainless Steel
Brass
304 Stainless Steel
Steel Zinc Plated
304 Stainless Steel
Steel Zinc Plated
304 Stainless Steel
Nitrile (Buna-N)
FKM (Viton)
EPDM (White)
White Hypalon
PTFE Envelope w/
W. Hypalon Insert
Steel
¼” Aluminum
304 Stainless Steel
316 Stainless Steel
PART NO.
3034ZC
3034SL
3034SS
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036ZC
3036SL
3560BN
3560VT
3560WE
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
∗ Use part # 4121ZC001 for kit with Nut (3), Bolt (2), and Washer (4).
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency and due regard to the products
carried to insure a liquid tight closure. Any worn, damaged or missing parts must be replaced. Gaskets should be
replaced if their effectiveness is impaired in any way. Replacement gaskets must be compatible with products carried.
WARNING: Use only genuine BETTS INDUSTRIES INC. replacement parts. Substitute parts can impair the proper
function of this product.
TM
Tel. (814) 723-1250 ⋅ Fax (814) 723-7030 ⋅ E-Mail: betts@bettsind.com ⋅ Web Site: www.bettsind.com
August 2008
Section 86 Page 1B
R
20” ROUND MANHOLE with 10” FILL
MODERN DESIGN
CT-0040
COVERED BY PATENTS
ISSUED AND PENDING
LOW COST
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
CLEAN LINES
Note: Not legal for DOT specification tanks.
Combining all the features of all full 20” manhole opening for inspection PLUS the 10” fill cap, Tiona Model No. 8020 is a real
2-in-1 value, offering both inspection and loading features in one husky unit. We pay more for top quality material but furnish it
as standard equipment at competitive prices. Secondary Latch is standard on all assemblies.
Clamping Ring,
Cover Plate,
Clamping Bolt
Clamping
Fill Cover,
Vent
Wt. (lb.)
Fill Gasket Retainer,
and Washer
Bolt Nut
Shim Washer
Strongback, Latch
Steel
Steel
Steel Zinc Plt.
Brass
Alum.
26.5
Steel Zinc Plt.
Steel Zinc Plt.
Steel Zinc Plt.
Brass
Alum.
26.5
Stnls 304*
Steel Zinc Plt.
Steel Zinc Plt.
Brass
Alum.
27.0
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Alum.
27.0
Stnls 304
Stnls 304**
Stnls 304
Stnls 304
Alum.
27.0
* Fill Gasket Retainer and Shims-Aluminum **Fill Cover Material-Stainless 316
Assembly No.
FVA8020SXB
FVA8020BXB
FVA8020GXB
FVA8020CXB
FVA8020DXB
NOTE: Inspection manhole assemblies, as listed above, have a 6238AL vent (prefix “FVA”) and Buna-N gaskets (suffix “B”).
For variation or additional vents see catalog Section 95 for proper prefix or assembly number. For variation in gasketing
change last letter of suffix as follows.
Suffix “V” indicates Viton gasket
Suffix “W” indicates White Hypalon gasket
Suffix “T” indicates Teflon fill and collar gasket w/ White Hypalon backer
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, exercise care to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Oct 1998
Section 86 Page 2A
PARTS LIST
20” Manhole w/ 10” Fill
No.
Description
Material
Part No.
No.
Description
Material
Part No.
Steel
3021MS
Steel
3036MS
8
Clamping Ring
Steel Zinc Plt.
3021ZC
Steel Zinc Plt.
3036ZC
1
Fill Cover
Stnls 304
3021SL
Stnls 304
3036SL
Stnls 316
3021SS
B Buna-N
3560BN
Bethane
3024BU
V Viton
3560VT
Manhole Gasket
9
Viton
3024VT
W Wh. Hypalon
3560WH
Channel Type
2
Fill Gasket
Wh. Hypalon
3024WH
Teflon Env.
T
3033TF
w/ Wh. Hypalon
Non-Asbestos
3024NA
Teflon
3024TF
Steel
3176MS
1
Steel
3213MS
/4 Aluminum
3176AE
Manhole Collar
10
Channel Type
Aluminum
3213AL
Stnls 304
3176SL
3
Retainer
Stnls 304
3213SL
Stnls 316
3176SS
Stnls 316
3213SS
11 Vent Assembly
Alum./Stnls
6238AL
Steel
3023MS
12 Gasket
Buna-N
3716BN
4
Shim Washer
Aluminum
3023AL
Gasket Maximum Temperature
Stnls 316
3023SS
Bethane
250°F
Steel Zinc Plt.
3029ZC
5
Bolt-Clamp
Viton
400°F
Stnls 304
3029SL
White
Hypalon
250°F
Nut-Clamp
Brass
3030BR
6
3
Teflon
400°F
/8-16 Thd.
Stnls 304
9Q5809
Teflon Envelope w/ White Hypalon Insert
250°F
7
Steel Zinc Plt.
3031ZC
Non-Asbestos
350°F
Washer-Clamp
Stnls 304
3031SL
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency and due regard to the products
carried to insure a liquid tight closure. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced
if their effectiveness is impaired in any way. Replacement gaskets must be compatible with products carried. Adjustment
due to gasket wear may be necessary to insure proper sealing of the 10” fill. A shim washer, item No. 4, is provided for this
purpose. To increase the sealing force of the 10” fill, remove shim from location shown above and re-position it above fill
cover No. 1.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1996
Section 86 Page 2B
R
20” PAF450 MANHOLE
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
NORMAL VENT
WROUGHT STEEL COVER
COVERED BY PATENTS
ISSUED AND PENDING
With Pressure Relief Valve
SECONDARY SAFETY LATCH
HEAVY DUTY CLAMP RING
Not legal as replacement on
MC306 cargo tanks
after August 31, 1998
Pressure Relief Valve setting 3.0 psig.
Rated Pressure Actuated Emergency Venting:
375,000 cu. ft. free air per hour @ 5.0 psig.
PAF Manholes with Model PAF450 10” Pressure Relief Valve are certified for use on MC306 cargo tanks. Manholes are
certified and marked in accordance with 49CFR178.345-5 with test pressure of 36 psig.
Per 49CFR180.405(h)(3), PAF450 assemblies may not be installed on MC306 cargo tanks after August 31, 1998. However,
relief valves installed on MC306 cargo tanks on or before August 31, 1998, may be repaired if required. PAF450 relief valves
may be installed on non-specification tanks or in tanks built in countries other than the United States where regulations
permit.
Relief valve also serves as a 10” latch style fill which can be easily opened for filling the tank or for inspection. Standard
features include heavy duty clamp ring, secondary safety latch and model 6238AL Normal Vent.
*No provision has been made for venting of product due to overfilling.
Manholes are also available with a self-latching feature which allows the Pressure Relief Valve cover to open only 91
degrees and drop closed and securely latch upon movement of the tank if the cover is inadvertently left open. For selflatching model substitute 9763 for 9720 in assembly number.
Cover Plate
PRV
Cover
Steel Zinc Plt.
Stnls 304
Stnls 316
Alum.
Clamping Ring,
Clamping
Spring
Bolt & Washer,
Spring
Ring Nut
Bolt & Nut
Strongback, Latch
Steel Zinc Plt.
Brass
Stnls 304**
Van
Stnls 304
Stnls 304
Stnls 304
Steel
Stnls 304
Stnls 304
Stnls 304
**Nut Material – Steel Zinc Plated
Normal
Vent
Wt. (lb.)
Assembly No.
Alum.
29.2
29.7
29.7
FVA9720BXB
FVA9720CXB
FVA9720DXB
NOTE: Manhole assemblies, as listed above, have a 6238AL vent (prefix “FVA”) and Buna-N (suffix “B”). For variation or
additional vents see catalog Section 95 for proper prefix or assembly number. For variation in gasketing change last letter of
suffix as follows.
Suffix “V” indicates Viton gasket
Suffix “W” indicates White Hypalon gasket
Suffix “T” indicates Tef-Sil pressure relief valve gasket and Teflon Envelope w/ White Hypalon insert collar gasket
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, exercise care to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1998
Section 86 Page 7A
PARTS LIST
20” PAF 450 MANHOLE
Self-Latching Model Illustrated
No.
1
1a
Description
Cover-Relief Valve
Cover (O-Ring Grvd.)
2
GasketRelief Valve
2a
3
O-Ring
Bolt
1
4
Hex Nut /2-13 Thd.
5
Spring
6
Bolt-Clamp
7
Nut-Clamp /8-16 Thd.
8
Washer-Clamp
9
Clamping Ring
3
Material
Aluminum
Aluminum
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Stnls 304
Steel Zinc Plt.
Stnls 304
Van Steel
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Part No.
8241AL
8246AL
3119BN
3119VT
3119WH
3902TS
3876SL
9Q5812
9Q5853
3859EY
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
No.
10
Description
Manhole Gasket
Channel Type
B
V
W
T
11
Manhole Collar
Channel Type
12
13
14
15
Vent Assembly
Gasket
Plastic Cap
Bellows
Material
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Alum/Stnls
Viton
Polyethylene
Buna-Urethane
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
6238AL
3716VT
9Z6150
4020BU
250°F
400°F
250°F
400°F
250°F
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency and due regard to the products
carried to insure a liquid tight closure. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced
if their effectiveness is impaired in any way. Replacement gaskets must be compatible with products carried.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of the Pressure Relief Valve and Manhole Assembly.
TM
INDUSTRIES, INC.
WARREN, PA.
Aug 1997
Section 86 Page 7B
R
20” PAF450 MANHOLE
With Pressure Relief Valve
COVERED BY PATENTS
ISSUED AND PENDING
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
NORMAL VENT
WROUGHT STEEL COVER
SECONDARY SAFETY LATCH
HEAVY DUTY CLAMP RING
Not legal as replacement on
MC306 cargo tanks
after August 31, 1998
Pressure Relief Valve setting 3.0 psig.
Rated Pressure Actuated Emergency Venting:
375,000 cu. ft. free air per hour @ 5.0 psig.
PAF Manholes with Model PAF450 10” Pressure Relief Valve are certified for use on MC306 cargo tanks. Manholes are
certified and marked in accordance with 49CFR178.345-5 with test pressure of 36 psig.
Per 49CFR180.405(h)(3), PAF450 assemblies may not be installed on MC306 cargo tanks after August 31, 1998. However,
relief valves installed on MC306 cargo tanks on or before August 31, 1998, may be repaired if required. PAF450 relief valves
may be installed on non-specification tanks or in tanks built in countries other than the United States where regulations
permit.
Relief valve also serves as a 10” latch style fill which can be easily opened for filling the tank or for inspection. Standard
features include heavy duty clamp ring, secondary safety latch and model 6238AL Normal Vent.
*No provision has been made for venting of product due to overfilling.
Manholes are also available with a self-latching feature which allows the Pressure Relief Valve cover to open only 91
degrees and drop closed and securely latch upon movement of the tank if the cover is inadvertently left open. For selflatching model substitute 9763 for 9720 in assembly number.
1
NOTE: 3 /2” vent and Liquid Level Switch not included in assembly.
Clamping Ring,
PRV
Clamping
Spring
Cover Plate
Bolt & Washer,
Spring
Cover
Ring Nut
Bolt & Nut
Strongback, Latch
Steel Zinc Plt.
Steel Zinc Plt.
Brass
Stnls 304**
Van.
Alum.
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Steel
Stnls 316
Stnls 304
Stnls 304
Stnls 304
**Nut Material – Steel Zinc Plated
Normal
Vent
Wt. (lb.)
Assembly No.
Alum.
28.4
28.9
28.9
FVA9820BXB
FVA9820CXB
FVA9820DXB
NOTE: Manhole assemblies, as listed above, have a 6238AL vent (prefix “FVA”) and Buna-N (suffix “B”). For variation or
additional vents see catalog Section 95 for proper prefix or assembly number. For variation in gasketing change last letter of
suffix as follows.
Suffix “V” indicates Viton gasket
Suffix “W” indicates White Hypalon gasket
Suffix “T” indicates Tef-Sil pressure relief valve gasket and Teflon Envelope w/ White Hypalon insert collar gasket
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, exercise care to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1998
Section 86 Page 8A
PARTS LIST
20” PAF 450 MANHOLE
Self-Latching Model Illustrated
No.
1
1a
Description
Cover-Relief Valve
Cover (O-Ring Grvd.)
2
GasketRelief Valve
2a
3
O-Ring
Bolt
1
4
Hex Nut /2-13 Thd.
5
Spring
6
Bolt-Clamp
7
Nut-Clamp /8-16 Thd.
8
Washer-Clamp
9
Clamping Ring
3
Material
Aluminum
Aluminum
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Stnls 304
Steel Zinc Plt.
Stnls 304
Van Steel
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Part No.
8241AL
8246AL
3119BN
3119VT
3119WH
3902TS
3876SL
9Q5812
9Q5853
3859EY
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
No.
10
Description
Manhole Gasket
Channel Type
B
V
W
T
11
Manhole Collar
Channel Type
12
13
14
15
Vent Assembly
Gasket
Plastic Cap
Bellows
Material
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Alum/Stnls
Viton
Polyethylene
Buna-Urethane
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
6238AL
3716VT
9Z6150
4020BU
250°F
400°F
250°F
400°F
250°F
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency and due regard to the products
carried to insure a liquid tight closure. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced
if their effectiveness is impaired in any way. Replacement gaskets must be compatible with products carried.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of the Pressure Relief Valve and Manhole Assembly.
TM
INDUSTRIES, INC.
WARREN, PA.
Apr 2000
Section 86 Page 8B
R
20” HOT PRODUCT MANHOLE
With 10” Fill
25 PSIG YIELD PRESSURE
MOUNT TO 20” PAF WELD COLLARS
HEAVY DUTY CLAMP RING
Hot Product Manholes are designed for use on tanks hauling elevated temperature materials and are rated with a 25 PSIG
yield pressure to meet the requirements of 49CFR 173.247(g)(2), which states:
“…Closures must be designed and constructed to
withstand, without exceeding the yield strength of
the packaging, twice the static loading produced by
the lading in any packaging orientation and at all
operating temperatures.”
Hot Product Manholes are designed to retrofit existing PAF Manholes on elevated temperature tanks in order to bring them
into compliance with the current closure requirements, as well as for new construction tanks.
The design features a 10” fill to provide tank access for filling or inspection and a heavy duty clamp ring which can be
removed to provide access into the tank. Steel assemblies are black epoxy coated for corrosion resistance.
Cover & Fill Material
Clamping Ring
Steel E-Coated
Steel Zinc Plt.
NOTE: 20” Model not available in stainless steel.
Clamping Bolt & Washer
Steel Zinc Plt.
Wt.
37.5 lb.
Assembly No.
8269YXV
NOTE: Manhole assemblies, as listed above, have Viton gaskets (suffix “V”). For other gaskets available, see parts page for
correct suffix.
During installation and welding the collars to the tank, care should be exercised to insure collars remain flat and round in
order to assure proper performance. If necessary, a weld fixture should be used to prevent distortion.
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1995
Section 86 Page 11A
PARTS LIST
20” HOT PRODUCTS MANHOLE
No.
1
2
Description
Cover
B
V
W
Gasket*
E
3
4
5
6
7
8
9
10
11
Wing Nut
Snap Ring
Snap Ring Washer
Swing Bolt
Swing Bolt Pin
Roll Pin-Swg Bolt
Hinge Pin
Roll Pin-Hinge Pin
Cover Assembly
Material
Steel
Buna-N
Viton
White Hypalon
White Non-Asbestos
with Teflon
Suspensoid (Woven)
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Stnls 304
Steel
Part No.
6554EY
3567BN
3567VT
3567WH
3567NT
3576SL
9Q4933
3575SL
3765SL
3086SL
9Q8593
3618SL
9Q8601
6552EY
No.
Description
12
Bolt-Clamp
13
Washer-Clamp
14
Nut-Clamp
15
Clamping Ring
16
*Gasket Maximum Temperature
Buna-N (Nitrile)
250°F
Viton
400°F
White Hypalon
250°F
Pure Teflon
500°F
500°F
White Non-Asbestos
with Teflon Suspensoid
GASKETS:
Check the condition of all gaskets and replace if their
effectiveness as a seal is impaired in any way.
Replacement gaskets must be compatible with
products carried.
Manhole Gasket
Channel Type
B
V
W
T
Material
Steel Zinc Plt.
Stnls 304
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Buna-N
Viton
White Hypalon
Teflon Envelope
w/ White Hypalon
Part No.
3029ZC
3029SL
3031ZC
3031SL
3030BR
9Q5809
3036MS
3036ZC
3036SL
3560BN
3560VT
3560WH
3033TF
MAINTENANCE:
Manhole assembly should be inspected with sufficient
frequency and with due regard to the products carried
to insure a liquid tight closure. Any worn, damaged, or
missing parts must be replaced.
WING NUTS AND SWING BOLTS:
All swing bolt and wing nut assemblies must be
secured to the cover and tightened to insure the
pressure and product retention performance of the
manhole assembly.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1995
Section 86 Page 11B
R
20” PAF 406-98 MANHOLE
With Integral Relief Valve/10” Fill
MEETS DOT 178.345-5
TEST PRESSURE 36 PSIG
CT-0040
COVERED BY PATENTS
ISSUED AND PENDING
LESS THAN 1 LITER LEAKAGE
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
INTEGRAL RELIEF VALVE/10” FILL
SET PRESSURE ADJUSTMENT
INCREASED FLOW RATE
SECONDARY SAFETY LATCH
Pressure Relief Valve setting 3.63 psig
Rated Pressure Actuated Emergency Venting:
494,084 cu. ft. free air per hour @ 6.25 psig
Rated Liquid Flow Capacity 1335 gpm @ 5.0 psig
PAF manholes with integral latch style surge suppression relief valves are designed for use on DOT406 and replacement on
MC306 specification cargo tanks. Manholes are certified and marked in accordance with 49CFR178.345-5 with a test
pressure of 36 psig. Manhole covers are 7 gage steel or stainless and are secured to the tank weld collar with a clamp ring
and bolt which can be easily removed to provide access into the tank.
The integral 10” relief valve provides emergency pressure relief and meets the 1 liter surge leakage limit imposed by
49CFR178.345-10(b)(3)(ii). The relief valve also serves as a 10” latch style fill which can be easily opened to provide access
for filling the tank or for inspection. Relief valves contain an adjustment feature to allow for fine-tuning of set pressure in the
field. Other standard features include a heavy duty clamp ring, secondary safety latch and model 6496ALB pressure-vacuum
vent mounted in the 10” relief valve cover.
Manholes are available with a self-latching feature that allows the 10” relief valve/fill cover to drop and securely latch upon
movement of the tank if the cover is inadvertently left open. For self-latching model substitute L720 for L763 in assembly
number.
Cover
Plate
Relief
Valve
Steel Zinc Plt.
Stnls 304
Stnls 316
Alum.
Alum.
Alum.
Clamping Ring,
Bolt, Washer,
Strongback, & Latch
Steel Zinc Plt.
Stnls 304
Stnls 304
Clamping Ring
Nut
Brass
Stnls 304
Stnls 304
Normal Vent
Wt.
(lb.)
Assembly No.
Alum.
Alum.
Alum.
30.5
31.0
31.0
PPVL720BXB
PPVL720CXB
PPVL720DXB
Note: Manhole assemblies, as listed above, have Buna-N gaskets (suffix “B”). For variation in gasketing change last letter of
assembly number as follows.
Suffix “V” indicates Viton collar gasket & Viton 10” fill gasket
Suffix “W” indicates White Hypalon collar gasket & White Hypalon 10” fill gasket
Suffix “T” indicates Teflon envelope collar gasket & Tef-Sil 10” fill o-ring
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, care should be exercised to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1999
Section 86 Page 18A
PARTS LIST
20” PAF 406-98 MANHOLE
Self-Latching Model Illustrated
No.
1
1a
Description
Fill Cover
Fill Cover (O-Ring Grvd.)
2
Gasket Integral Relief Valve
2a
O-Ring
3
Bolt-Clamp Ring
4
Nut-Clamp Ring
5
Washer-Clamp Ring
6
Clamping Ring
7
Manhole Gasket
Channel Type
8
Manhole Collar
Channel Type
Material
Alum/E-Coated
Alum/E-Coated
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Part No.
8297ALEY
8297ALEY389
3119BN
3119VT
3119WH
3902TS
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
No.
9
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
Description
Vent Assembly
Gasket
Cylinder Assembly
Piston
Stem
Spring
1
/2” NPT Plug Zinc Plt.
Stem O-Ring -112
Cylinder O-Ring –137
Piston O-Ring –137
O-Ring Retainer
Retainer Ring
Bellows
7
Lockwasher Ext. Tooth /16”
7
Nut Hex /16x20
Plastic Plug
3
/8-16 Hex Nut w/ Insert
Material
Aluminum
Buna-N
Aluminum
Aluminum
Stnls 304
Steel
Steel Zinc Plt.
Buna-N
Buna-N
Tef-Sil
Alum/E-Coated
Stnls 304
EPDM
Stnls 304
Stnls 304
Polyethylene
Steel Zinc Plt.
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
6496ALB
3716BN
6657AL
6654AL
6688SL
4122MS
9V4907
4118BN
4015BN
4015TS
4117ALEY
9Q4961
4020EPDM
9Q5961
9Q5960
9Z6163
9Q5896
250°F
400°F
250°F
400°F
250°F
Replace oil cylinder using Automatic Transmission Fluid Dexron III/Mercon, SAE 5W-20 with viscosity of 177 SUS at
100°F and a pour point of no greater than –45°F.
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency to insure 10” Integral Relief Valve
functions properly. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced if their
effectiveness to insure a liquid tight seal is impaired in any way. Replacement gaskets must be compatible with
products carried.
WARNING Consult PAF406-98 maintenance manual prior to disassembly of this relief valve.
Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1999
Section 86 Page 18B
R
20” PAF 406-98 OFFSET MANHOLE
With Integral Relief Valve/10” Fill
CT-0040
COVERED BY PATENTS
ISSUED AND PENDING
LESS THAN 1 LITER LEAKAGE
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
MEETS DOT 178.345-5
TEST PRESSURE 36 PSIG
INTEGRAL RELIEF VALVE/10” FILL
SET PRESSURE ADJUSTMENT
INCREASED FLOW RATE
SECONDARY SAFETY LATCH
Pressure Relief Valve setting 3.63 psig
Rated Pressure Actuated Emergency Venting:
494,084 cu. ft. free air per hour @ 6.25 psig
Rated Liquid Flow Capacity 1335 gpm @ 5.0 psig
PAF manholes with integral latch style surge suppression relief valves are designed for use on DOT406 and replacement on
MC306 specification cargo tanks. Manholes are certified and marked in accordance with 49CFR178.345-5 with a test
pressure of 36 psig. Manhole covers are 7 gage steel or stainless and are secured to the tank weld collar with a clamp ring
and bolt which can be easily removed to provide access into the tank.
The integral 10” relief valve provides emergency pressure relief and meets the 1 liter surge leakage limit imposed by
49CFR178.345-10(b)(3)(ii). The relief valve also serves as a 10” latch style fill which can be easily opened to provide access
for filling the tank or for inspection. Relief valves contain an adjustment feature to allow for fine-tuning of set pressure in the
field. Other standard features include a heavy duty clamp ring, secondary safety latch and model 6496ALB pressure-vacuum
vent mounted in the 10” relief valve cover.
Manholes are available with a self-latching feature that allows the 10” relief valve/fill cover to drop and securely latch upon
movement of the tank if the cover is inadvertently left open. For self-latching model substitute L863 for L820 in assembly
number.
1
Note: 3 /2” Vent and Liquid Level Switch not included in assembly.
Clamping Ring,
Cover
Relief
Clamping Ring
Bolt, Washer,
Plate
Valve
Nut
Strongback, & Latch
Steel Zinc Plt.
Alum. Steel Zinc Plt.
Brass
Stnls 304
Alum. Stnls 304
Stnls 304
Stnls 316
Alum. Stnls 304
Stnls 304
Normal Vent
Alum.
Alum.
Alum.
Wt.
(lb.)
Assembly No.
29.7
30.2
30.2
PPVL820BXB
PPVL820CXB
PPVL820DXB
Note: Manhole assemblies, as listed above, have Buna-N gaskets (suffix “B”). For variation in gasketing change last letter of
assembly number as follows.
Suffix “V” indicates Viton collar gasket & Viton 10” fill gasket
Suffix “W” indicates White Hypalon collar gasket & White Hypalon 10” fill gasket
Suffix “T” indicates Teflon envelope collar gasket & Tef-Sil 10” fill o-ring
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, care should be exercised to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1999
Section 86 Page 19A
A
B
C
D
E
F
G
H
PARTS LIST
20” PAF 406-98 MANHOLE
Self-Latching Model Illustrated
No.
1
1a
Description
Fill Cover
Fill Cover (O-Ring Grvd.)
2
Gasket Integral Relief Valve
2a
O-Ring
3
Bolt-Clamp Ring
4
Nut-Clamp Ring
5
Washer-Clamp Ring
6
Clamping Ring
7
Manhole Gasket
Channel Type
8
Manhole Collar
Channel Type
Material
Alum/E-Coated
Alum/E-Coated
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Part No.
8297ALEY
8297ALEY389
3119BN
3119VT
3119WH
3902TS
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
No.
9
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
PLAN VIEW DIMENSIONS
1
4 /4” Dia. (107.95mm)
7
8 Holes-.390 Dia. (9.90mm) on 4 /8” (123.83mm) B.C.
3
2 /8” Dia. (60.325mm) Hole
1
/4” N.P.T. Coupling
7” Rad. (177.8mm)
3
6 /8” (161.93mm)
3
4 /4” (120.65mm)
1
3 /4” (82.55mm)
Description
Vent Assembly
Gasket
Cylinder Assembly
Piston
Stem
Spring
1
/2” NPT Plug Zinc Plt.
Stem O-Ring -112
Cylinder O-Ring –137
Piston O-Ring –137
O-Ring Retainer
Retainer Ring
Bellows
7
Lockwasher Ext. Tooth /16”
7
Nut Hex /16x20
Plastic Plug
3
/8-16 Hex Nut w/ Insert
Material
Aluminum
Buna-N
Aluminum
Aluminum
Stnls 304
Steel
Steel Zinc Plt.
Buna-N
Buna-N
Tef-Sil
Alum/E-Coated
Stnls 304
EPDM
Stnls 304
Stnls 304
Polyethylene
Steel Zinc Plt.
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
6496ALB
3716BN
6657AL
6654AL
6688SL
4122MS
9V4907
4118BN
4015BN
4015TS
4117ALEY
9Q4961
4020EPDM
9Q5961
9Q5960
9Z6163
9Q5896
250°F
400°F
250°F
400°F
250°F
Replace oil cylinder using Automatic Transmission Fluid Dexron III/Mercon, SAE 5W-20 with viscosity of 177 SUS at
100°F and a pour point of no greater than –45°F.
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency to insure 10” Integral Relief Valve
functions properly. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced if their
effectiveness to insure a liquid tight seal is impaired in any way. Replacement gaskets must be compatible with
products carried.
WARNING Consult PAF406-98 maintenance manual prior to disassembly of this relief valve.
Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Sept 1999
Section 86 Page 19B
R
20” PAF 306-98 MANHOLE
INTEGRAL 10” FILL/PRESSURE RELIEF
VALVE WITH MC306 SET PRESSURE
•
LESS THAN 1 LITER LEAKAGE
•
SECONDARY SAFETY LATCH
MEETS DOT 178.345-5
TEST PRESSURE 36 PSIG
•
CT-0040
REPLACEMENT FOR PAF9000 MODELS
COVERED BY PATENTS
ISSUED AND PENDING
•
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
With Integral Relief Valve/10” Fill
Pressure Relief Valve setting 3.0 psig
Rated Pressure Actuated Emergency Venting:
250,000 cu. ft. free air per hour @ 5.0 psig
Rated Liquid Flow Capacity 1012 gpm @ 5.0 psig
PAF manholes with integral latch style surge suppression relief valves are designed for use as a replacement for PAF9000
model manhole assemblies on MC306 tanks. Manholes are certified and marked in accordance with 49CFR178.345-5 with a
test pressure of 36 psig. Manhole covers are 7 gage steel or stainless and are secured to the tank weld collar with a clamp
ring and bolt which can be easily removed to provide access into the tank.
The integral 10” relief valve provides emergency pressure relief and meets the 1 liter surge leakage limit imposed by
49CFR178.345-10(b)(3)(ii). The relief valve also serves as a 10” latch style fill which can be easily opened to provide access
for filling the tank or for inspection. Relief valves contain an adjustment feature to allow for fine-tuning of set pressure in the
field. Other standard features include a heavy duty clamp ring, secondary safety latch and model 6238ALB pressure-vacuum
vent mounted in the 10” relief valve cover.
Manholes are available with a self-latching feature that allows the 10” relief valve/fill cover to drop and securely latch upon
movement of the tank if the cover is inadvertently left open. For self-latching model substitute R463 for R420 in assembly
number.
Cover
Plate
Relief
Valve
Steel Zinc Plt.
Stnls 304
Stnls 316
Alum.
Alum.
Alum.
Clamping Ring,
Bolt, Washer,
Strongback, & Latch
Steel Zinc Plt.
Stnls 304
Stnls 304
Clamping Ring
Nut
Brass
Stnls 304
Stnls 304
Normal Vent
Wt.
(lb.)
Alum.
Alum.
Alum.
30.5
31.0
31.0
Assembly No.
FVAR420BXB
FVAR420CXB
FVAR420DXB
Note: Manhole assemblies, as listed above, have Buna-N gaskets (suffix “B”). For variation in gasketing change last letter of
assembly number as follows.
Suffix “V” indicates Viton collar gasket & Viton 10” fill gasket
Suffix “W” indicates White Hypalon collar gasket & White Hypalon 10” fill gasket
Suffix “T” indicates Teflon envelope collar gasket & Tef-Sil 10” fill o-ring
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, care should be exercised to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Nov 1999
Section 86 Page 20A
PARTS LIST
20” PAF 306-98 MANHOLE
No.
1
1a
Description
Fill Cover
Fill Cover (O-Ring Grvd.)
2
Gasket Integral Relief Valve
2a
O-Ring
3
Bolt-Clamp Ring
4
Nut-Clamp Ring
5
Washer-Clamp Ring
6
Clamping Ring
7
Manhole Gasket
Channel Type
8
Manhole Collar
Channel Type
Material
Alum/E-Coated
Alum/E-Coated
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Part No.
8317ALEY
8317ALEY389
3119BN
3119VT
3119WH
3902TS
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
No.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Description
Vent Assembly
Gasket
Cylinder Assembly
Piston
Stem
Spring
1
/2” NPT Plug Zinc Plt.
Stem O-Ring -112
Cylinder O-Ring –137
Piston O-Ring –137
O-Ring Retainer
Retainer Ring
Bellows
7
Lockwasher Ext. Tooth /16”
7
Nut Hex /16x20
Plastic Plug
3
/8-16 Hex Nut w/ Insert
Material
Aluminum
Buna-N
Aluminum
Aluminum
Stnls 303
Steel
Steel Zinc Plt.
Buna-N
Buna-N
Tef-Sil
Alum/E-Coated
Stnls 304
BUNA
Stnls 304
Stnls 304
Polyethylene
Steel Zinc Plt.
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
6238ALB
3716BN
6657AL
6654AL
6720SL
4173MS
9V4907
4118BN
4015BN
4015TS
4117ALEY
9Q4961
3998BU
9Q5961
9Q5960
9Z6163
9Q5896
250°F
400°F
250°F
400°F
250°F
Replace oil cylinder using Automatic Transmission Fluid Dexron III/Mercon, SAE 5W-20 with viscosity of 177 SUS at
100°F and a pour point of no greater than –45°F.
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency to insure 10” Integral Relief Valve
functions properly. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced if their
effectiveness to insure a liquid tight seal is impaired in any way. Replacement gaskets must be compatible with
products carried.
WARNING Consult PAF406-98 maintenance manual prior to disassembly of this relief valve.
Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Nov 1999
Section 86 Page 20B
R
20” PAF306-98 OFFSET MANHOLE
With Integral Relief Valve/10” Fill
•
LESS THAN 1 LITER LEAKAGE
•
SECONDARY SAFETY LATCH
CT-0040
INTEGRAL 10” FILL/PRESSURE RELIEF
VALVE WITH MC306 SET PRESSURE
COVERED BY PATENTS
ISSUED AND PENDING
•
BETTS INDUSTRIES, INC.
WARREN, PA. U.S.A.
REPLACEMENT FOR PAF9000 MODELS
MEETS DOT 178.345-5
TEST PRESSURE 36 PSIG
•
Pressure Relief Valve setting 3.0 psig
Rated Pressure Actuated Emergency Venting:
250,000 cu. ft. free air per hour @ 5.0 psig
Rated Liquid Flow Capacity 1012 gpm @ 5.0 psig
PAF manholes with integral latch style surge suppression relief valves are designed for use as a replacement for PAF9000
model manhole assemblies on MC306 tanks. Manholes are certified and marked in accordance with 49CFR178.345-5 with a
test pressure of 36 psig. Manhole covers are 7 gage steel or stainless and are secured to the tank weld collar with a clamp
ring and bolt which can be easily removed to provide access into the tank.
The integral 10” relief valve provides emergency pressure relief and meets the 1 liter surge leakage limit imposed by
49CFR178.345-10(b)(3)(ii). The relief valve also serves as a 10” latch style fill which can be easily opened to provide access
for filling the tank or for inspection. Relief valves contain an adjustment feature to allow for fine-tuning of set pressure in the
field. Other standard features include a heavy duty clamp ring, secondary safety latch and model 6238ALB pressure-vacuum
vent mounted in the 10” relief valve cover.
Manholes are available with a self-latching feature that allows the 10” relief valve/fill cover to drop and securely latch upon
movement of the tank if the cover is inadvertently left open. For self-latching model substitute R563 for R520 in assembly
number.
Note: 31/2” Vent and Liquid Level Switch not included in assembly.
Clamping Ring,
Clamping Ring
Cover
Relief
Bolt, Washer,
Nut
Plate
Valve
Strongback, & Latch
Steel Zinc Plt.
Alum. Steel Zinc Plt.
Brass
Stnls 304
Alum. Stnls 304
Stnls 304
Stnls 316
Alum. Stnls 304
Stnls 304
Normal Vent
Wt.
(lb.)
Assembly No.
Alum.
Alum.
Alum.
29.7
30.2
30.2
FVAR520BXB
FVAR520CXB
FVAR520DXB
Note: Manhole assemblies, as listed above, have Buna-N gaskets (suffix “B”). For variation in gasketing change last letter of
assembly number as follows.
Suffix “V” indicates Viton collar gasket & Viton 10” fill gasket
Suffix “W” indicates White Hypalon collar gasket & White Hypalon 10” fill gasket
Suffix “T” indicates Teflon envelope collar gasket & Tef-Sil 10” fill o-ring
Manhole collars are available in aluminum, steel, and stainless steel. Please see parts page for correct numbers.
When welding collars to tank, care should be exercised to insure collar remains flat and round.
TM
INDUSTRIES, INC.
WARREN, PA.
Nov 1999
Section 86 Page 21A
A
B
C
D
E
F
G
H
PARTS LIST
20” PAF 306-98 MANHOLE
No.
1
1a
Description
Fill Cover
Fill Cover (O-Ring Grvd.)
2
Gasket Integral Relief Valve
2a
O-Ring
3
Bolt-Clamp Ring
4
Nut-Clamp Ring
5
Washer-Clamp Ring
6
Clamping Ring
7
Manhole Gasket
Channel Type
8
Manhole Collar
Channel Type
Material
Alum/E-Coated
Alum/E-Coated
Buna-N
Viton
Wh. Hypalon
Tef-Sil
Steel Zinc Plt.
Stnls 304
Brass
Stnls 304
Steel Zinc Plt.
Stnls 304
Steel
Steel Zinc Plt.
Stnls 304
Buna-N
Viton
Wh. Hypalon
Teflon Env.
w/ Wh. Hypalon
Steel
Aluminum
Stnls 304
Stnls 316
Part No.
8317ALEY
8317ALEY389
3119BN
3119VT
3119WH
3902TS
3029ZC
3029SL
3030BR
9Q5809
3031ZC
3031SL
3036MS
3036ZC
3036SL
3560BN
3560VT
3560WH
3033TF
3176MS
3176AE
3176SL
3176SS
No.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
PLAN VIEW DIMENSIONS
1
4 /4” Dia. (107.95mm)
7
8 Holes-.390 Dia. (9.90mm) on 4 /8” (123.83mm) B.C.
3
2 /8” Dia. (60.325mm) Hole
1
/4” N.P.T. Coupling
7” Rad. (177.8mm)
3
6 /8” (161.93mm)
3
4 /4” (120.65mm)
1
3 /4” (82.55mm)
Description
Vent Assembly
Gasket
Cylinder Assembly
Piston
Stem
Spring
1
/2” NPT Plug Zinc Plt.
Stem O-Ring -112
Cylinder O-Ring –137
Piston O-Ring –137
O-Ring Retainer
Retainer Ring
Bellows
7
Lockwasher Ext. Tooth /16”
7
Nut Hex /16x20
Plastic Plug
3
/8-16 Hex Nut w/ Insert
Material
Aluminum
Buna-N
Aluminum
Aluminum
Stnls 303
Steel
Steel Zinc Plt.
Buna-N
Buna-N
Tef-Sil
Alum/E-Coated
Stnls 304
BUNA
Stnls 304
Stnls 304
Polyethylene
Steel Zinc Plt.
Gasket Maximum Temperature
Buna-N (Nitrile)
Viton
White Hypalon
Teflon-Silicone
Teflon Envelope w/ White Hypalon Insert
Part No.
6238ALB
3716BN
6657AL
6654AL
6720SL
4173MS
9V4907
4118BN
4015BN
4015TS
4117ALEY
9Q4961
3998BU
9Q5961
9Q5960
9Z6163
9Q5896
250°F
400°F
250°F
400°F
250°F
Replace oil cylinder using Automatic Transmission Fluid Dexron III/Mercon, SAE 5W-20 with viscosity of 177 SUS at
100°F and a pour point of no greater than –45°F.
MAINTENANCE: Manhole assemblies should be inspected with sufficient frequency to insure 10” Integral Relief Valve
functions properly. Any worn, damaged or missing parts must be replaced. Gaskets should be replaced if their
effectiveness to insure a liquid tight seal is impaired in any way. Replacement gaskets must be compatible with
products carried.
WARNING Consult PAF406-98 maintenance manual prior to disassembly of this relief valve.
Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of this product.
TM
INDUSTRIES, INC.
WARREN, PA.
Nov 1999
Section 86 Page 21B