Brass Piston Pressure Regulator Valve

Constructed from corrosion-resistant brass and lightweight aluminum alloy, this pressure regulator valve has a tube diameter of 20.5 mm and a sleek silver finish. Supplied as one unit, it offers robust mechanical stability and thermal tolerance suitable for continuous-duty workshop environments. Its piston architecture achieves 30% higher volumetric flow than comparable diaphragm-type regulators, supporting faster tank recharge and reduced duty cycle strain. The integrated V-ring piston seal ensures tight shut-off, minimal pressure creep, and consistent performance over thousands of operational cycles. Functionally, it governs compressor motor engagement and disengagement by sensing system pressure — adjustable via accessible screw mechanism. Compatible with standard gas meter assemblies and exhaust valves used in UK/EU domestic and light industrial compressors.