Product Description
The 337 Kunkle pressure relief valve can be purchased preset per your requirements up to a maximum pressure of 60 psig and a minimum pressure of 1 psig.
337 Kunkle Pressure 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.
337 Kunkle Pressure Relief Valve Connections:
- 2″ MPT (Male Pipe Thread) fitting for mounting on system
- 2″ 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: 8 lb (3.6 kg)
The 337 Kunkle Pressure Relief Valve 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
|
240
|
1.5
|
276
|
2
|
313
|
2.5
|
349
|
3
|
386
|
3.5
|
422
|
4
|
458
|
4.5
|
495
|
5
|
531
|
5.5
|
552
|
6
|
773
|
6.5
|
594
|
7
|
615
|
7.5
|
636
|
8
|
657
|
8.5
|
678
|
9
|
699
|
9.5
|
720
|
10
|
741
|
10.5
|
762
|
11
|
782
|
11.5
|
803
|
12
|
824
|
12.5
|
845
|
13
|
865
|
13.5
|
886
|
14
|
907
|
14.5
|
927
|
15
|
948
|
Part Number Guide
Kunkle Pressure Relief Valve 337 – 2″
$304.19
Preset per your requirements
Max Pressure: 60 psig
Min Pressure: 1 psig
Shipping Weight: | 8 lbs |
---|---|
Shipping Dimensions: | 5.375 × 4.5 × 7.125 in |
Manufacturer: | Kunkle |