Page 18 - Petroleum

A
B
C
D
Mounting Flange
Connections
O.D.
B.C.
N.H.
S.H.
6 1/8
2 1/16
7 13/16
1 1/2
10”
7 1/4
8
9/18
1/4 NPT
Note: Vent mounts to standard 4” size sumps.
A
Air Inlet
D=Travel B
C
The Betts air-operated vent has a 5” opening to provide the high venting capacity required for fast unloading for bottom loading system.
Parts List
Body
Seat
Diaphragm
Wt.
Part Number
Aluminum w/Stnls
Teflon Encapsulated Silicon
Hydrin
7.5
BET AV46184ALHTS
Fluorosilicone
BET AV46184ALFTS
5” Air-Operated Vent
Key Description Req’d Material Part Number
1
Hex. Hd. Cap Screw
1
Aluminum
BET 18088AL
2
O-Ring Holder
1
Aluminum
BET 26909AL
3
O-Ring
1
Tef/Sil
BET 18250TS
4
Body
1
Aluminum
BET 45736AL
5
Spring
1
Stainless
BET 17052SL
6
Stem
1
Aluminum
BET 16971AL
7
3/8-16UNC-2A Hex. Nut
3
Stainless
BET 9Q5809
8
3/8-16UNC-2A x 3 3/4 Hex. Hd. Bolt
3
Stainless
BET 9Q5891
9
Cylinder
1
Aluminum
BET 26368AL
10
3/16 x 1 Spirol Pin
1
Stainless
BET 9Q5901
11
Piston
1
Aluminum
BET 26376AL
12
Wear Ring
1
Teflon
BET 17213TF
13
Diaphragm
1
Hydrin
BET 17212HD
Fluorosilicone
BET 17212FS
14
End Cap
1
Aluminum
BET 26369AL
15
Retainer Plate
1
Aluminum
BET 17196AL
16
Machine Screw
3
Steel Zinc Plt.
BET 9Q5892
17
Washer
1
Aluminum
BET 17418AL
18
Washer
1
Teflon
BET 17418TF
19
O-Ring
1
Viton
BET 18108VT
20
Seal-Stem
1
Teflon
BET 19326TF
21
Washer
1
Aluminum
BET 17928AL
22
Lock-Ring
1
Stainless
BET 9Q4929
2-18
1/4 N.P.T. Air Inlet
Venting Petroleum Trailer Parts Catalog