The valve has a diaphragm/spring controlled system relief valve that senses and relieves pressure when set-point or greater is reached. It has 38 mm bore, and Union Bullnose and Coupling Design to ease the installation and maintenance. A simple adjust screw is needed if different pressure setting is required; easy access and maintenance of main seal. The valve is cleaned and degreased for all oxygen service applications It has a maximum design pressure of 50 bar. Regulation pressures include a range between 1 bar to 30 bar, can withstand a maximum temperature up to +120 degree celsius, and a minimum temperature up to -196 degree celsius. The valve is designed used for gases, vapors, and cryogenic liquefied gases with accreditation from standard marking account under the pressure equipment derivative.