Mfg of Relief Valves, Check Valves, Needle Valves, Pressure Regulators and Cryogenic Products valve, Pressure Regulator, Check Valve, Relief Valve, Gas Regulator, Needle Valve, Master Valve, poppet, relief pressure, high pressure relief valve, cryogenic pressure relief valves, stainless, brass, Made in the USA, ISO9001, Medical oxygen, inhalation therapy, welding gases, alternative fuels, analytical instrumentation, biopharmaceuticals, chemical, petrochemical, oil and gas, process instrumentation, semiconductor, food and beverage, industrial gas, cryogenics