Product Description

The Kunkle Relief 337 is a pressure relief valve that 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.

Kunkle Relief Valve Connections:

  • 3″ MPT (Male Pipe Thread) fitting for mounting on system
  • 3″ 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: 20 lb (9.1 kg)
The 337 Kunkle 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
527
1.5
607
2
687
2.5
767
3
847
3.5
926
4
1006
4.5
1086
5
1166
5.5
1212
6
1258
6.5
1305
7
1351
7.5
1397
8
1443
8.5
1489
9
1536
9.5
1582
10
1628
10.5
1673
11
1719
11.5
1764
12
1809
12.5
1855
13
1900
13.5
1945
14
1990
14.5
2036
15
2081

Part Number Guide

Guide to Kunkle manufacturer part numbers

Kunkle Pressure Relief Valve 337 – 3″

BOM Number: 0337-K01ANE SKU: N/A Category:

$544.70

Kunkle 3″ 337
Preset per your requirements
Max Pressure: 60 psig
Min Pressure: 1 psig

Shipping Weight: 20 lbs
Shipping Dimensions: 7.75 × 6.5 × 9.5 in
Manufacturer:

Kunkle

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