RegO® Hydrogen Product Applications LIQUID HYDROGEN PRODUCTS Swing Check Valve for Liquid Hydrogen Service886MGF Series Metal-Metal Seal Swing Check Valve for Liquid Hydrogen Service886GF Series Soft Seal Liquid Hydrogen Globe Valve 231 Series HYDROGEN GAS PRODUCTS Stainless Steel Relief Device Diverter DV4108 Series Brass or Stainless Steel ASME Relief Valves 9400 Series Heavy Duty Gas Line Regulators 1780 & BR-1780 Series