Emission Collection Hood
VENT ACCESSORIES
Use with Betts Push Type or Air Operated Vapor Valves
The Betts emission collection hood provides an economical means of connecting the positive vapor vent to the vapor
rail. The hoods are made of ozone and ultraviolet resistant nitrile and are designed to collapse in case of rollover
without adversely affecting the product retention of the cargo tank. The hoods for the 5” valve are provided with two
outlets and one of them is plugged with an aluminum end cap. Hoods are available less the mounting clamp with
suffix “001” added to the end of the assembly number.
Hoods for 5” Valve
VR45725BU – Vapor hood with provisions for two
outlets 180° apart. Weight 3.7 lbs.
VR45742BU – Vapor hood with provisions for two
outlets on same side. Weight 3.7 lbs.
Hood for 3½˝ Threaded Style
Hood for 3½˝ Bolted Style
Optional 30° Screened Outlet
VR45962BU – Weight 1.0 lbs.
VR45784BU – Weight 2.3 lbs
Add suffix “003” to end of assembly
number.
TM
Tel. (814) 723-1250 ⋅ Fax (814) 723-7030 ⋅ E-Mail: [email protected] ⋅ Web Site: www.bettsind.com
June 2009
Section 24 Page 1A
1
3 /2” Push Vent
No.
1
2
3
4
5
6
7
8
9
10
11
PARTS LIST
Description
Req.
3
3
Cap Screw /8-16x /4
1
Disc Holder
1
O-Ring
1
Spring
1
Body
1
Stem
1
3
Spirol Pin /16x1
1
Spring Retainer
2
Adjusting Bar
1
5
Hex Jam Nuts /8-18 Thd
2
Push Rod
1
Material
Stnls
Alum
Tef/Sil
Stnls
Alum
Alum
Stnls
Alum
Alum
Stnls
Alum
Part No.
9Q5884
17841AL
18106TS
17052SL
26856AL
16971AL
9Q5901
16974AL
16554AL
9Q5868
17074AL
MAINTENANCE INSTRUCTIONS
REPLACING O-RING SEAT: The O-ring can be replaced without removing the vent from tank. Open vent.
For safety, insert a wooden stick between the disc holder #2 and body #4. Attach vice-grip pliers to stem.
Remove screw #1 and O-ring holder #2. Replace O-ring #3. Re-assemble, then remove pliers.
INSTALLATION INSTRUCTIONS
Vent should be mounted directly over emergency valve. Cut push rod #11 to an approximate length. Install
1
push rod and adjust item #9 allowing approximately /8” end clearance to ensure that vent will close.
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1989
Section 25 Page 3B
5” Push Vent
No.
1
2
3
4
5
6
7
8
9
10
11
Description
3
3
Cap Screw /8-16x /4
O-Ring Holder
O-Ring
Body
Spring
Stem
3
Spirol Pin /16x1
Spring Retainer
Adjusting Bar
5
Hex Jam Nuts /8-18 Thd
Push Rod
Req.
1
1
1
1
1
1
1
2
1
2
1
Material
Stnls
Alum
Tef/Sil
Alum
Stnls
Alum
Stnls
Alum
Alum
Stnls
Alum
Part No.
9Q5884
26909AL
18250TS
45736AL
17052SL
16971AL
9Q5901
16974AL
16554AL
9Q5868
17074AL
MAINTENANCE INSTRUCTIONS
REPLACING O-RING SEAT: The O-ring can be replaced without removing the vent from tank. Open vent. For safety,
insert a wooden stick between the disc holder #2 and body #4. Attach vice-grip pliers to stem. Remove screw #1 and
O-ring holder #2. Replace O-ring #3. Re-assemble, then remove pliers and air pressure.
INSTALLATION INSTRUCTIONS
Vent should be mounted directly over emergency valve. Cut push rod #11 to an approximate length. Install push rod
1
and adjust item #9 allowing approximately /8” end clearance to ensure that vent will close.
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1989
Section 25 Page 8B
Vents
VAPOR SYSTEM VENT
Inbreathing Vent
EASILY INSTALLED
ADDS TANK PROTECTION
THRU AREA – SIX SQUARE INCHES
Opening Pressure: 6 oz. per sq. in.
Venting Capacity Air:
12,000 cu. ft. hr./1 psig
Dimensions
A
B
3
5
3 /8
A supplemental vent designed for
installation in tank vehicle vapor recovery
system to provide venting protection in the
event the vapor recovery system should be
closed or blocked while discharging
product from the tank. This vent mounts to
a 4” TTMA flange.
/8
C
13
4 /16
O.D.
5
6 /8
Mounting Flange
B.C.
N.H.
7
5 /8
8
S.H.
7
/16
Disc
Travel
2”
Note: When vent is mounted in tubing, a 43/8 Minimum I.D. is required to
provide sufficient area around disc holder assembly.
Description
Vent Assembly
Gasket
Material
Aluminum/Stainless
with Buna-N Disc
Cork-Buna-N
Wt.
Assembly No.
2.0
PV26364-AL-B
RGA 401-CB
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1989
Section 25 Page 10A
VAPOR SYSTEM VENT
PARTS LIST
7
1
2
3
No.
1
2
3
4
5
6
7
4
6
5
Description
Body
Disc Holder Assembly
Spring
Stem
Spring Retainer
3
Spirol Pin /16 x 1
3
3
Cap Screw /8-16UNC-2A x /4
Req’d.
1
1
1
1
1
1
1
Material
Aluminum
Alum/Buna-N
Steel “E” Coated
Stainless
Aluminum
Stainless
Stainless
Part No.
26381AL
17209AB
17192EY
17205SL
17051AL
9Q5901
9Q5884
INSTALLATION
3
Vent is designed to bolt to a standard 4” TTMA outlet flange. A minimum 4 /8” I.D. should be provided to allow
sufficient venting area between the O.D. of disc holder and I.D. of mounting. Care should be taken to provide
adequate space for the spring end of the vent.
Overturn Rail
Top of Tank
NOTE: The above is not intended to be a recommendation that overturn rails be used for conduits in vapor recovery
system or that vent must be mounted as shown. It merely shows one type of mounting to illustrate that clearance is
needed for the spring end of vent to insure proper operation.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of the Vent.
TM
INDUSTRIES, INC.
WARREN, PA.
Feb 1993
Section 25 Page 10B
Vents
VAPOR SYSTEM VENT
Outbreathing Vent
EASILY INSTALLED
ADDS TANK PROTECTION
THRU AREA – SIX SQUARE INCHES
B.C.
Opening Pressure: 1 psig
Venting Capacity Air:
51,000 cu. ft. hr./3 psig
Dimensions
A
B
3
1 /16
3 /8
11
C
1
3 /4
O.D.
5
6 /8
Mounting Flange
B.C.
N.H.
7
5 /8
8
S.H.
7
/16
Disc
Travel
2”
A supplemental vent designed for
installation in tank vehicle vapor recovery
system to provide venting protection in the
event the vapor recovery system should be
closed or blocked while bottom loading.
This vent mounts to a 4” TTMA flange.
Description
Vent Assembly
Gasket
Material
Aluminum/Stainless
with Buna-N Disc
Cork-Buna-N
Wt.
Assembly No.
1.5
PV26363 AL B
RGA 401-CB
TM
INDUSTRIES, INC.
WARREN, PA.
Jan 1989
Section 25 Page 11A
VAPOR SYSTEM VENT
PARTS LIST
7
2
1
3
4
No.
1
2
3
4
5
6
7
6
5
Description
Body
Disc Holder Assembly
Spring
Stem
Spring Retainer
3
Spirol Pin /16 x 1
3
Hex Nut /8-16UNC-2A Thd.
Req’d.
1
1
1
1
1
1
1
Material
Aluminum
Alum/Buna-N
Steel “E” Coated
Stainless
Aluminum
Stainless
Stainless
Part No.
26382AL
17210AB
17192EY
17204SL
17051AL
9Q5901
9Q5809
INSTALLATION
Vent is designed to bolt to a standard 4” TTMA outlet flange. Care should be taken to provide adequate space for
the spring end of the vent.
Overturn Rail
Top of Tank
NOTE: The above is not intended to be a recommendation that overturn rails be used for conduits in vapor recovery
system or that vent must be mounted as shown. It merely shows one type of mounting to illustrate that clearance is
needed for the spring end of vent to insure proper operation.
WARNING Use only genuine Betts Industries Inc. replacement parts. Use of substitute parts can impair the proper
functioning of the Vent.
TM
INDUSTRIES, INC.
WARREN, PA.
Feb 1993
Section 25 Page 11B
3-1/2” Aluminum Vapor Valve
AIR OPERATED
Sequential Interlock
 Air Actuated Sequential Operation
 Stainless Trim with PTFE Seals
 Inward Opening
Bolted Model: AV46850ALTS*
SERVICE TEMPERATURE RATINGS (OF)
Standard Valves
-20 OF to 200 OF
w/ ‘023’ suffix (fluorosilicone) -80 OF to 400 OF
NOTE: Temperature ratings are based on published
information and may vary due to actual conditions.
Threaded Model: AV46855ALTS
* Add suffix “022” for Stainless Mounting Bolts
IN
IN
OUT
OUT
Betts 3-1/2” Sequential Vapor Valves are designed for use as positive vapor recovery valves on cargo tanks
during loading and unloading. Sequential interlock design allows the vapor valve to be plumbed in series with
the emergency valve to ensure the vapor valve is open before the emergency valve. Vapor valves can also be
plumbed to operate independently of the emergency valves, if desired. Internal interlock device guarantees that
all vapor valves and emergency valves will close fully when air pressure is released, regardless of their location
in the plumbing system.
Available in two configurations - bolted design mounts in 20” offset PAF manhole cover using eight 3/8-16UNC
bolts (included), while threaded design mounts in 16” offset PAF manhole. Both versions meet all requirements
for loading/unloading venting devices on MC306 and DOT406 cargo tanks and are tested and marked with a test
pressure of 36 psig in accordance with 49CFR178.345-5(f).
Inward opening action prevents loss of lading due to surge pressure during a roll-over accident. All moving parts
are internal to minimize chance of freeze-ups during cold weather. Aluminum bodies with stainless trim minimize
corrosion and PTFE seals in contact with vapors ensure compatibility with a wide variety of products.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
July 2010
Section 25 Page 16A
PARTS LIST
3 ½” ALUMINUM VAPOR VALVE – SEQUENTIAL INTERLOCK
Note: Threaded Valve Shown
PLUMBING INFORMATION:
Vapor valves may be plumbed separately, in
sequence with other vapor valves, or they may
be interlocked with an air operated emergency
valve so that the vapor valve must open before
the emergency valve opens. Refer to
Engineering Bulletin 1-2001 for more detailed
instructions
on
suggested
plumbing.
t
NO.
DESCRIPTION
REQ PART NO.
1
2
3
4
Cap Retaining Ring
Rubber Rain Cap
Air Cylinder Cap
Interlock Ball
1
1
1
1
5
Interlock O-ring
1
6
Cap O-ring
1
7
8
Piston
Piston Seal
1
1
9
Piston O-ring
1
10 Stem
11 Spring
Mounting O-ring
12
(threaded version)
1
1
1
9Q4977
75010EP
19957ALEY
9Z4857
19467BN
19467VT
19467FS
19971BN
19971VT
19971FS
75212AL
75434SLTF
19931BN
19931VT
19931FS
28117AL
19960SL
17657VT
17657VB
MATERIAL
Stainless Steel
EPDM
Alum./E-coat
316 Stainless
Nitrile
FKM ‘A’
Fluorosilicone
Nitrile
FKM ‘A’
Fluorosilicone
Alum./Anodized
PTFE/SS
Nitrile
FKM ‘A’
Fluorosilicone
Alum./Anodized
302 SS
FKM ‘A’
FKM ‘BLT'
NO.
DESCRIPTION
Mounting Ring
13 w/ Set Screws
(threaded version)
REQ PART NO.
1
MATERIAL
19950AL
Aluminum
Tef-Sil
FKM ‘A’
FKM ‘BLT’
Aluminum
PTFE/SS
Aluminum
Stainless Steel
14 O-ring Seat
1
15 O-ring Holder
16 Shaft Seal
17 Seal Retainer
Retaining Ring
18
Shaft Seal
1
1
1
19930TS
18098VT
18098VB
28033AL
75462TF
19958AL
1
9Q4976
Mounting Hardware for Bolted Version
Cork Buna
Gasket (bolted
1 RGA301CB (Other Mat’l Avail. See
12a
version)
Sec. 40, page 2A)
Bolts & Lock
75002ZC
Steel/Zn Plt.
13a washers (bolted
1
75002SL
304 Stainless
version)
Seal Kit # AV75601TS (bolted version) includes: (2), (5), (6), (8), (9), (12a), (14), (16).
Seal Kit # AV75602TS (threaded version) includes: (2), (5), (6), (8), (9), (12), (14), (16).
WARNING: Use only genuine BETTS INDUSTRIES INC. replacement parts. Use of substitute parts can impair the proper function
of this product and void all warranties.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
September 2010
Section 25 Page 16B
3-1/2” Aluminum Vapor Valve
 Air Actuated
 Stainless Trim with PTFE Seals
 Inward Opening
Bolted Model: AV46865ALTS*
AIR OPERATED
SERVICE TEMPERATURE RATINGS (OF)
O
O
Standard Valves
-20 F to 200 F
O
O
w/ ‘023’ suffix (fluorosilicone) -80 F to 400 F
NOTE: Temperature ratings are based on published
information and may vary due to actual conditions.
Threaded Model: AV46864ALTS
* Add suffix “022” for Stainless Mounting Bolts
Betts 3-1/2” Vapor Valves are designed for use as positive vapor recovery valves on cargo tanks during loading
and unloading.
Available in two configurations - bolted design mounts in 20” offset PAF manhole cover using eight 3/8-16UNC
bolts (included), while threaded design mounts in 16” offset PAF manhole. Both versions meet all requirements
for loading/unloading venting devices on MC306 and DOT406 cargo tanks and are tested and marked with a test
pressure of 36 psig in accordance with 49CFR178.345-5(f).
Inward opening action prevents loss of lading due to surge pressure during a roll-over accident. All moving parts
are internal to minimize chance of freeze-ups during cold weather. Aluminum bodies with stainless trim minimize
corrosion and PTFE seals in contact with vapors ensure compatibility with a wide variety of products.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
July 2010
Section 25 Page 17A
PARTS LIST
3 ½” ALUMINUM VAPOR VALVE
Note: Threaded Valve Shown
NO.
DESCRIPTION
REQ PART NO.
MATERIAL
1 Cap Retaining Ring
2 Rubber Rain Cap
1
1
9Q4977
75010EP
3 Air Cylinder Cap
1
19957ALEY Alum./E-coat
4 Cap O-ring
1
Stainless Steel
EPDM
19971BN
Nitrile
19971VT
FKM ‘A’
19971FS
Fluorosilicone
5 Spring Retainer Nut
1
19934AL
Aluminum
6 Spring Ret. Washer
1
19959BR
Brass
7 Stem
1
75066AL
Alum./Anodized
8 Spring
1
19960SL
302 SS
17657VT
FKM ‘A’
17657VB
FKM ‘BLT’
19950AL
Aluminum
Mounting O-Ring
(threaded version)
1
Mounting Ring
10 w/ Set Screws
(threaded version)
1
9
NO.
DESCRIPTION
REQ PART NO.
MATERIAL
19930TS
Tef-Sil
FKM ‘A’
11 O-ring Seat
1
18098VT
18098VB
FKM ‘BLT’
12 O-ring Holder
1
28033AL
Aluminum
13 Shaft Seal
1
75462SLTF PTFE/SS
14 Seal Retainer
Retaining Ring
15
Shaft Seal
1
19958AL
Aluminum
1
9Q4976
Stainless Steel
Mounting Hardware for Bolted Version
Cork Buna
Gasket (bolted
9a
1 RGA301CB (Other Mat’l Avail. See
version)
Sec. 40, page 2A)
Bolts & Lock
75002ZC
Steel/Zn Plt.
10a washers (bolted
1
75002SL
304 Stainless
version)
Seal Kit # AV75603TS (threaded version) includes: (4), (11), (13), (9), (2).
Seal Kit # AV75604TS (bolted version) includes: (4), (11), (13), (9a), (2).
WARNING: Use only genuine BETTS INDUSTRIES INC. replacement parts. Use of substitute parts can impair the proper function
of this product and void all warranties.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
September 2010
Section 25 Page 17B
4” Aluminum Vapor Valve
AIR OPERATED
Sequential Interlock
 Air Actuated Sequential Operation
 Stainless Trim with PTFE Seals
 Inward Opening
SERVICE TEMPERATURE RATINGS (OF)
Standard Valves
-20 OF to 200 OF
w/ ‘023’ suffix (fluorosilicone) - 80 OF to 400 OF
NOTE: Temperature ratings are based on published
information and may vary due to actual conditions.
AV46836ALTS
4.00
3.80
1.80
.89
Ø6.15
Ø8.00
Betts 4” Sequential Vapor Valve is designed for use as a positive vapor recovery valve on cargo tanks during
loading and unloading. Sequential interlock design allows the vapor valve to be plumbed in series with the
emergency valve to insure the vapor valve is open before the emergency valve. Vapor valves can also be
plumbed to operate independently of the emergency valves, if desired. Internal interlock device guarantees that
all vapor valves and emergency valves will close fully when air pressure is released, regardless of their location
in the plumbing system.
Mounts to standard 4” TTMA sump flange pattern. Meets all requirements for loading/unloading venting devices
on MC306 and DOT406 cargo tanks and is tested and marked with a test pressure of 36 psig in accordance with
49CFR178.345-5(f).
Inward opening action prevents loss of lading due to surge pressure during a roll-over accident. All moving parts
are internal to minimize chance of freeze-ups during cold weather. Aluminum bodies with stainless trim minimize
corrosion and PTFE seals in contact with vapors ensure compatibility with a wide variety of products.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
July 2010
Section 25 Page 18A
PARTS LIST
4” ALUMINUM VAPOR VALVE – SEQUENTIAL INTERLOCK
PLUMBING INFORMATION:
Vapor valves may be plumbed
separately, in sequence with other
vapor valves, or they may be
interlocked with an air operated
emergency valve so that the vapor
valve must open before air is
supplied to the emergency valve.
Refer to Engineering Bulletin 1-2001
for more detailed instructions on
suggested plumbing arrangements.
NO.
DESCRIPTION
REQ PART NO.
MATERIAL
1 Cap Retaining Ring
2 Rubber Rain Cap
1
1
9Q4977
75010EP
3 Air Cylinder Cap
1
19957ALEY Alum./E-coat
4 Interlock Ball
1
9Z4857
316 Stainless
19467BN
Nitrile
19467VT
FKM ‘A’
19467FS
Fluorosilicone
19971BN
Nitrile
19971VT
FKM ‘A’
5 Interlock O-ring
1
Stainless Steel
EPDM
6 Cap O-ring
1
19971FS
Fluorosilicone
7 Piston
1
75212AL
Alum./Anodized
8 Piston Seal
1
75434SLTF PTFE/SS
9 Piston O-ring
10 Spring
1
1
NO.
19931BN
Nitrile
19931VT
FKM ‘A’
19931FS
Fluorosilicone
19960SL
302 SS
DESCRIPTION
11 Stem
12 O-Ring Seat
REQ PART NO.
MATERIAL
1
28117AL
Alum./Anodized
1
19935TS
Tef-Sil
1
19935VT
FKM ‘A’
1
19935VB
FKM ‘BLT’
1
19935VF
FKM ‘GFLT-s’
13 O-ring Holder
1
28000AL
Aluminum
14 Seal – Shaft
Shaft Seal
15
Retainer
Retainer Ring –
16
Shaft Seal
Retaining Ring –
17
Access Holes
1
75462SLTF PTFE/SS
1
19958AL
Aluminum
1
9Q4976
Stainless Steel
2
9Q4934
Carbon Steel
O-Ring Access
Holes
2
19936BN
Stainless Steel
2
19936FS
Fluorosilicone
19 Access Hole Plugs
2
19929ALEY Alum./E-Coat
18
Seal Kit # AV75600TS includes: (2), (5), (6), (8), (9), (12), (14), (18).
WARNING: Use only genuine BETTS INDUSTRIES INC. replacement parts. Use of substitute parts can impair the proper function
of this product and void all warranties.
TM
Tel. (814) 723-1250  Fax (814) 723-7030  E-Mail: [email protected]  Web Site: www.bettsind.com
September 2010
Section 25 Page 18B