These quick release poppet valves have threaded mounting. The GAS cylindrical thread is ISO 228 (BSP) compliant. The valves are made from nickel plated brass with NBR seals. Only the couplings with an '8' as the third number in the code are made from hardened galvanized steel.
The valves have a nominal diameter of 5 or 7 mm and a nominal pressure of 6 bar. They operate at a pressure of -0.99 to 12 bar and at temperatures of 0 °C to 80 °C (with dry air -20 °C). The connections are G1/8, G1/4, G3/8 and G1/2 for plastic tubes and rubber hoses.