Kunkle Safety Relief Valves

Heavy-duty cast valve housing with wide hex body for easy installation. Precision-lapped seats and dual control rings ensure accurate opening and blowdown control. Features a robust lift lever and tamper-proof, factory-sealed adjustments. Each valve is 100% tested for pressure, blowdown, and leakage.



Part Number
INLET (MPT)
DISCHARGE (FPT)
PRESSURE SETTING (PSI)
AIR FLOW* (SCFM)
3/4"
3/4"
125
296
3/4"
3/4"
135
318
3/4"
3/4"
150
350
3/4"
3/4"
200
457
1-1/4"
1-1/4"
125
828
1-1/4"
1-1/4"
135
888
1-1/4"
1-1/4"
150
978
1-1/4"
1-1/4"
200
1277
1-1/2"
1-1/2"
125
1357
1-1/2"
1-1/2"
135
1455
1-1/2"
1-1/2"
150
1602
1-1/2"
1-1/2"
200
2093
2"
2"
125
2144
2"
2"
135
2267
2"
2"
150
2496
2"
2"
200
3260
2-1/2"
2-1/2"
125
3464
2-1/2"
2-1/2"
135
3714
2-1/2"
2-1/2"
150
4090
2-1/2"
2-1/2"
200
5341

*For Inlet Air Temp. other than 60°F, see table for correction factor (Image 2)