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 Thread Standard Width Inlet Port Gender Minimum Operating Temperature Maximum Operating Temperature Minimum Operating Pressure Maximum Operating Pressure Inlet Port Size
RS Stock No. 843-5520
Mfr. Part No.VHS20-N02A-Z
BrandSMC
HK$270.71
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. 202-2953
Mfr. Part No.GRLA-1/4-PK-4-B
BrandFesto
HK$225.49
Each
units
GRLA - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 202-2954
Mfr. Part No.GRLA-1/8-RS-B
BrandFesto
HK$277.81
Each
units
GRLA - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 202-2962
Mfr. Part No.GRLA-M5-PK-3-B
BrandFesto
HK$203.04
Each
units
GRLA - Nitrile Rubber - - - - - - 0.2bar 10bar -
RS Stock No. 202-2958
Mfr. Part No.GRO-1/4
BrandFesto
HK$696.44
Each
units
GRO Stainless Steel Nitrile Rubber - - - - - - 0bar 10bar -
RS Stock No. 203-8536
Mfr. Part No.GR-1/8X2-B
BrandFesto
HK$659.27
Each
units
GR-1/8X2-B - NBR 46.2 x 16mm - - Female - - 0.5bar 10bar -
RS Stock No. 202-2970
Mfr. Part No.GRLZ-M5-B
BrandFesto
HK$222.49
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.2bar 10bar -
RS Stock No. 202-2974
Mfr. Part No.GRO-QS-4
BrandFesto
HK$219.61
Each
units
GRO Stainless Steel Nitrile Rubber - - - - - - 0bar 10bar -
RS Stock No. 202-2963
Mfr. Part No.GRLZ-1/4-RS-B
BrandFesto
HK$314.98
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 203-8664
Mfr. Part No.GR-3/4
BrandFesto
HK$3,455.47
Each
units
GR-3/4 Wrought Aluminium Alloy Nitrile Rubber 88 x 42mm - - Female - - 0.3bar 15bar -
RS Stock No. 202-2978
Mfr. Part No.GRLZ-1/8-RS-B
BrandFesto
HK$282.22
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 202-3004
Mfr. Part No.GRLZ-1/4-PK-6-B
BrandFesto
HK$227.00
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 202-2950
Mfr. Part No.GRLA-M5-PK-4-B
BrandFesto
HK$205.99
Each
units
GRLA - Nitrile Rubber - - - - - - 0.2bar 10bar -
RS Stock No. 202-2961
Mfr. Part No.GRLA-3/4-B
BrandFesto
HK$810.98
Each
units
GRLA - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 203-8514
Mfr. Part No.GGO-1/4-3/8
BrandFesto
HK$4,665.55
Each
units
GGO-1/4-3/8 Wrought Aluminium Alloy NBR 95 x 25mm - - Female - - 0.03bar 8bar -
RS Stock No. 398-9114
Mfr. Part No.V07-200-NNLG
BrandNorgren
HK$393.47
Each
units
V07 Zinc Alloy - 75 x 41mm - - Female -34°C +65°C 0.3bar 9 bar -
RS Stock No. 202-2957
Mfr. Part No.GRLO-M5-B
BrandFesto
HK$227.00
Each
units
GRLO - Nitrile Rubber - - - - - - 0bar 10bar -
RS Stock No. 202-2977
Mfr. Part No.GRLZ-1/8-QS-3-D
BrandFesto
HK$154.22
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.2bar 10bar -
RS Stock No. 202-2955
Mfr. Part No.GRLZ-1/4-PK-4-B
BrandFesto
HK$227.00
Each
units
GRLZ - Nitrile Rubber - - - - - - 0.3bar 10bar -
RS Stock No. 210-8443
Mfr. Part No.AP100-02
BrandSMC
HK$269.45
Each
units
AP100 Die Cast Aluminium - 69 x 40mm - - Female +5°C +60°C 0.05MPa 1 MPa -