Description
For a high quality pressure relief valve Kunkle 337 can be purchased preset per your requirements up to a maximum pressure of 60 psig and a minimum pressure of 1 psig.
Kunkle Relief Valve Features:
- Large nozzle design provides high capacity.
- Flat bronze valve series are lapped for optimum performance.
- Warn ring offers easy adjustability for precise opening with minimum pre-open simmer and exact blower down control.
- Pivot Between disc and spring corrects misalignment and compensates for spring side thrust.
- A lift handle is provided for easy manual testing.
- Protects low to medium pressure blowers and compressors. It is well suited for positive displacement blowers.
Connections:
- 2.5" MPT (Male Pipe Thread) fitting for mounting on system
- 2.5" FPT (Female Pipe Thread) fitting to allow for piping away the relief flow
Materials of Construction:
- Nozzle - Bronze, SB62
- Set Screw A108-1018 Brass Plated
- Regulator Ring - Bronze B584-C84400
- Disc - Bronze B584-C84400
- Spring Step - Steel A109 Coated
- Spring - SS A313-302
- Body - Cast Iron A-126, Class A or B
- Compression Screw - Bronze B584-C84400
- Stem - Brass B16
- Regulator Ring Set Screw - Brass B16
Weight: 12 lb (5.4 kg)
The 337 will not have a code stamp or 'NB' on nameplate below 15 psig setting.
Capcities based on Air (SCFM)
The table below shows flow values in scfm at set points from 1 to 15 psig
| Set Pressure psig |
Volume (SCFM) |
1 |
364 |
| 1.5 |
419 |
| 2 |
474 |
| 2.5 |
529 |
| 3 |
585 |
3.5 |
640 |
4 |
695 |
4.5 |
750 |
5 |
805 |
5.5 |
837 |
6 |
869 |
6.5 |
901 |
7 |
933 |
7.5 |
965 |
8 |
996 |
8.5 |
1028 |
9 |
1060 |
9.5 |
1092 |
10 |
1124 |
10.5 |
1155 |
11 |
1186 |
11.5 |
1218 |
12 |
1249 |
12.5 |
1280 |
13 |
1311 |
13.5 |
1342 |
14 |
1374 |
14.5 |
1405 |
15 |
1436 |
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