Gas safety valves

View our wide range of gas safety valves that are used to vent overpressure in your system. A safety valve vents the medium to prevent pressure build up, hereby increasing the safety of the system. Most safety valves use a spring-principle... Read more Read more

Product Brand Connection size Blow-off pressure (Adjustable) (bar) Material Blow-off capacity (m³/h) Seal Connection type Max temperature (°C) Min temperature (°C) Suitable for gases (incl. steam) Blow-off characteristic Spring cap, closed Blow-off pressure (Non-adjustable) (bar) Approval Height (mm) Material quality
G 1/4'' Brass Adjustable...
In stock
Tameson 1/4 inch 6 bar to 12 bar Brass 38.99 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - -
G 1/2'' Brass Pre-Set...
In stock
Tameson 1/2 inch - Brass 308 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 12 TUV Certification 77 -
G 1/4'' Stainless steel 303...
+3 days
Tameson 1/4 inch 0.5 bar to 1 bar Stainless steel 3 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - Stainless steel 303 (1.4305)
G 1/4'' Brass Adjustable...
+3 days
Tameson 1/4 inch 10 bar to 18 bar Brass 52.19 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - -
G 1/4'' Stainless steel 303...
+3 days
Tameson 1/4 inch 1 bar to 4 bar Stainless steel 12 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - Stainless steel 303 (1.4305)
G 1/4'' Brass Pre-Set...
+3 days
Tameson 1/4 inch - Brass 15 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 0.4 TUV Certification 65 -
G 1/4'' Brass Pre-Set...
+3 days
Tameson 1/4 inch - Brass 40 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 1 TUV Certification 65 -
G 1/2'' Brass Pre-Set...
+3 days
Tameson 1/2 inch - Brass 485.8 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 11 TUV Certification 109 -
G 1/4'' Brass Adjustable...
+3 days
Tameson 1/4 inch 3 bar to 7 bar Brass 21 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - -
G 1/4'' Brass Adjustable...
+3 days
Tameson 1/4 inch 0.5 bar to 1 bar Brass 3 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - -
G 1/8'' Stainless steel 303...
+3 days
Tameson 1/8 inch 3 bar to 7 bar Stainless steel 21 FKM (FPM) Outer thread cylindrical... 180 -10 No Low-lifting Yes - - - Stainless steel 303 (1.4305)
G 1/4'' Brass Pre-Set...
+3 days
Tameson 1/4 inch - Brass 12 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 0.2 TUV Certification 65 -
G 3/8'' Brass Pre-Set...
+3 days
Tameson 3/8 inch - Brass 285 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 11 TUV Certification 75 -
G 3/8'' Brass Pre-Set...
+3 days
Tameson 3/8 inch - Brass 485.8 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 11 TUV Certification 107 -
G 1/4'' Brass Pre-Set...
+3 days
Tameson 1/4 inch - Brass 285 FKM (FPM) Outer thread cylindrical... 180 -25 No Low-lifting Yes 11 TUV Certification 65 -
Gas safety valves

Gas safety valves

View our wide range of gas safety valves that are used to vent overpressure in your system. A safety valve vents the medium to prevent pressure build up, hereby increasing the safety of the system. Most safety valves use a spring-principle to open once the set pressure is achieved.

Safety valves have a unique response characteristic. When the systems pressure exceeds more than 10% of the goal pressure, the safety valve opens instantaneously and releases all of the overpressure. This is usually accompanied by a popping sound. When the systems pressure is down to approximately 10 to 20% below the goal pressure, it closes again. This build up and aggressive relief of the systems pressure stresses the system heavily and is only suitable as a last-resort safety measure.

These safety valves are specifically made for gas-based applications and therefore not suitable for systems transporting liquids. Safety valves come in two types, adjustable and non-adjustable. Adjustable safety valves can be manually set to the desired safety pressure. They have varying blow-off capacities as a function of the pressure. Non-adjustable safety valves have a pre-set safety pressure that you buy it at and it can't be changed. They have a predetermined blow-off capacity.

In high-pressure gas systems, it is recommended that the outlet of the safety valve is in the open air. In systems where the outlet is connected to piping, the opening of the safety valve will give a pressure build up in the piping system connected to the outlet of the safety valve.