Corken 91 - Page 83

Appendix E—Parts Details for 691 and F691 Head and Valve Assembly
Head and Valve Bill of Materials
Ref
No.
Part No. Description Qty.
1. 3458
a
Head (model 691) 1
2. 4299
Head
(model F691, Class 300 RF flange)
1
3. 2144-2 Flange (2" NPT, suction) 1
4. 2144-1.5 Flange (1-1/2" NPT, discharge) 1
5. 2-231_
b
O-ring 2
6. 2-261_
b
O-ring (model 691 head) 2
7. 7001-043NC150A Bolt (hex head, 7/16"-14 x 1-1/2") 8
8. 2136 Center head bolt 2
9. 7005-050NC150A Bolt (ferry head, 1/2"-13 x 1-1/2") 12
10.
2714 Valve cap 4
2714-1 Valve cap (grooved for O-ring) 4
11. 2-031_
b
O-ring (valve cap) 4
12. 2715 Holddown screw 4
13. 7001-043NC137A Bolt (hex head, 7/16"-14 x 1-3/8") 16
14. 1764 Valve cover plate 4
15. 2-235_
b
O-ring (cover plate) 4
16. 2797 Valve cage 4
17. 2114 Valve gasket (aluminum) 4
18. 5000-77 Retainer ring 2
19. 3977 Suction valve relief housing (spec 3) 2
20. 1411 Spring 2
21. 1410 Relief ball 2
22. 3948 Valve seat (spec 3) 2
23. 2534-1 Suction valve post (spec 3) 2
24. 4230 Inner valve plate 2
25. 4229 Outer valve plate 2
26. 3929 Inner valve spring 2
27. 3928 Outer valve spring 2
28. 3949-1 Valve bumper (spec 3) 2
29. 3857-1
Valve bumper (spec 3) 4
Valve bumper (spec 4) 6
30. 3920 Valve stud 4
31. 3856 Valve seat 2
Ref
No.
Valve Assembly No. Assembly Name
101. 3948-2X Suction valve assembly—spec 3
102. 3856-2X Suction valve assembly—spec 4
103. 3857-2X Discharge valve assembly—all specs
104. 3146-X2
Valve repair kit—all specs
(suction and discharge)
Head Assembly No. Model Valve Specification
3458-X 691 3
a
S/N NQ51455 and later. Earlier models use gasket
#2177.
b
_ denotes material code. See material code chart for
details.
c
Registered trademark of the DuPont company.
Material Code
A Buna-N
B Neoprene
®c
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