Pneumatic Pressure Relief Valves

Pneumatic pressure relief valves are fittings used to control air within a compressed air system. They are implemented within systems to prevent spikes in pressure which could cause damage to equipment. Pressure relief valves are designed to provide safety and to help the system maintain optimal performance.

Pneumatic pressure relief valves are set to a specific level of pressure. If this pressure is exceeded, the releases the excess pressure. The excess is released into the atmosphere when the valve opens.

Pressure relief valves can be installed throughout a pneumatic system, wherever protection is needed from potential spikes in pressure. They are often attached to a pipe, filter or a vale and feature a threaded port for attaching. Pressure relief valves are very easy to install.

What are pneumatic pressure relief valves made from?

The valves are usually made from a metal, such as stainless steel or brass. They often feature a seal to provide an air-tight fitting, which is usually made from plastic of rubber.

Where are pneumatic relief valves used?

Many pneumatic systems require relief valves, for example compressors and process control systems. Some valves are designed for high pressure or high temperature environments too.


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Description Price Manufacturer Series Body Material Seal Material Dimensions Inlet Port Gender Minimum Operating Temperature Maximum Operating Temperature Minimum Operating Pressure Maximum Operating Pressure
RS Stock No. 843-5520
Mfr. Part No.VHS20-N02A-Z
BrandSMC
MYR156.80
Each
units
VHS Die Cast Zinc - 45 (Dia.) x 59 (Height)mm Female -5°C +60°C 0.1MPa 1 (Operating) MPa, 1.5 (Proof) MPa
RS Stock No. 210-8443
Mfr. Part No.AP100-02
BrandSMC
MYR157.57
Each
units
AP100 Die Cast Aluminium - 69 x 40mm Female +5°C +60°C 0.05MPa 1 MPa
RS Stock No. 202-3006
Mfr. Part No.GRLZ-M5-QS-3-D
BrandFesto
MYR89.36
Each
units
GRLZ - Nitrile Rubber - - - - 0.2bar 10bar
RS Stock No. 843-5536
Mfr. Part No.VHS40-N04A-Z
BrandSMC
MYR236.71
Each
units
VHS Die Cast Aluminium - 63 (Dia.) x 107 (Height)mm Female -5°C +60°C 0.1MPa 1 (Operating) MPa, 1.5 (Proof) MPa
RS Stock No. 202-2963
Mfr. Part No.GRLZ-1/4-RS-B
BrandFesto
MYR182.50
Each
units
GRLZ - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 203-8664
Mfr. Part No.GR-3/4
BrandFesto
MYR1,995.99
Each
units
GR-3/4 Wrought Aluminium Alloy Nitrile Rubber 88 x 42mm Female - - 0.3bar 15bar
RS Stock No. 267-9412
Mfr. Part No.V72G-3GK-NMN
MYR210.79
Each
units
V74G Zinc Neoprene 98 x 50mm Female -34°C +65°C 0.3bar 10 bar
RS Stock No. 202-3018
Mfr. Part No.GR-M3
BrandFesto
MYR280.38
Each
units
GR Brass Nitrile Rubber - - - - 0.2bar 8bar
RS Stock No. 202-2944
Mfr. Part No.GRLZ-M5-PK-4-B
BrandFesto
MYR120.99
Each
units
GRLZ - Nitrile Rubber - - - - 0.2bar 10bar
RS Stock No. 267-9428
Mfr. Part No.V74G-4GK-NMN
BrandNorgren
MYR761.98
Each
units
V74G Aluminium Nitrile Rubber 170 x 80mm Female -34°C +80°C 0.3bar 10 bar
RS Stock No. 203-8536
Mfr. Part No.GR-1/8X2-B
BrandFesto
MYR375.37
Each
units
GR-1/8X2-B - NBR 46.2 x 16mm Female - - 0.5bar 10bar
RS Stock No. 202-2949
Mfr. Part No.GRLA-1/4-RS-B
BrandFesto
MYR180.86
Each
units
GRLA - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 202-3002
Mfr. Part No.GRLA-1/8-QS-3-D
BrandFesto
MYR86.13
Each
units
GRLA - Nitrile Rubber - - - - 0.2bar 10bar
RS Stock No. 202-2971
Mfr. Part No.GRLZ-1/8-PK-3-B
BrandFesto
MYR120.99
Each
units
GRLZ - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 202-2998
Mfr. Part No.GRLA-1/8-PK-6-B
BrandFesto
MYR119.35
Each
units
GRLA - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 203-8517
Mfr. Part No.GRR-1/2
BrandFesto
MYR4,855.91
Each
units
GRR-1/2 Wrought Aluminium Alloy - 117 x 34mm - - - 0.3bar 10bar
RS Stock No. 202-2938
Mfr. Part No.GRLZ-1/8-PK-4-B
BrandFesto
MYR118.90
Each
units
GRLZ - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 202-3115
Mfr. Part No.GRO-QS-3
BrandFesto
MYR109.12
Each
units
GRO Stainless Steel Nitrile Rubber - - - - 0bar 10bar
RS Stock No. 202-2978
Mfr. Part No.GRLZ-1/8-RS-B
BrandFesto
MYR163.02
Each
units
GRLZ - Nitrile Rubber - - - - 0.3bar 10bar
RS Stock No. 202-2957
Mfr. Part No.GRLO-M5-B
BrandFesto
MYR131.12
Each
units
GRLO - Nitrile Rubber - - - - 0bar 10bar