1148 Safety Relief Valve



Parts:

Select Key No. Cat. No. No. Per Unit (1148) No. Per Unit (S1148) Description Quantity
4U472200 1 Valve Assy (w/Nitrile O-Rings)
4U472201 1 SS Valve Assy (w/Nitrile O-Rings)
1 4U472600 1 Body - Steel
1 4U472601 1 Body - Stainless
2 3K799600 1 Guide - Steel
2 3K799601 1 Guide - Stainless
3 3U872000 1 1 Stem - Steel
4 2U472000 1 Spring - Steel
4 2U472100 1 Spring - Stainless
5 3K799000 1 Follower - Steel
5 3K799001 1 Follower - Stainless
6 3U472800 1 Retainer - Steel
6 3U472801 1 Retainer - Stainless
7 90038702 1 1 O-Ring - Nitrile
7 91000028 1 1 O-Ring - PTFE
7 91000093 1 1 O-Ring - Viton A
8 91001292 1 1 O-Ring - Nitrile
8 91000027 1 1 O-Ring - PTFE
8 91000092 1 1 O-Ring - Viton A
9 50092738 1 1 Cushion
10 90002091 1 1 Locknut - Stainless
11 90034880 2 Bolt-Stud - Steel
11 90034881 2 Bolt-Stud - Stainless
12 90034892 2 Bolt-Stud - Steel
12 90034893 2 Bolt-Stud - Stainless
13 90004452 4 Washer - Steel
13 90004303 4 Washer - Stainless
14 50092567 3 3 Seal
15 90002303 1 1 Hex Nut - Stainless
16 90002624 1 1 Seal Nut - Stainless
17 90002555 4 Hex Nut - Steel
17 90002620 4 Hex Nut - Stainless
18 91000001 1 1 Tag
19 90001629 6 6 Bolt
20 90038554 1 1 Gasket - Buna (other materials available)
21 90035098 2 2 Seal Bolt
22 90002321 8 8 Nut
23 50094546 1 1 Seal
7 O-ring- Please select from the table
8 O-ring- Please select from the table
  • Type | STDP* | AAR RATED SCFM
  • 1148 | 75 lbs. | 20,605 @ 85 PSIG
  • S1148 | 75 lbs. | 20,605 @ 85 PSIG
  • *Start To Discharge Pressure
  • Nitrile 70 is standard for items 7, 8, and 9.
  • Other O-ring and Gasket materials available.
  • Material for stainless parts is type 316 unless otherwise noted.
  • 8 equally spaced 0.75" dia. on a 10.25" bolt cirlce.
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