IntroductionHikelok High Pressure Check valves provides unidirectional flow and tight shut-off for liquids and gas with high reliability. When differential drops below cracking pressure, valve shuts off.
FeaturesMaterials: 316 Stainless Steel: body, cover, poppet, cover gland. 300 Series Stainless Steel: spring. Standard O-ring:Viton, for operation to 500° F (260°C). Buna-N or Teflon available for 250°F (121°C) or 400°F (204°C) respectively; specify when ordering Cracking Pressure: 20 psi (1.38 bar) ±30%. Springs for higher cracking pressures (up to 100 psi (6.89 bar) available on special order for O-ring style check valves only Maximum working pressure up to 60,000 psi (4137 bar) Minimum operating temperature for standard o-ring check valves 0°F (17.8°C)
AdvantagesPrevents reverse flow where leak-tight shut-off is not mandatory. When differential drops below cracking pressure,valve closes. With all-metal components, valve can be used up to 1200°F (649°C) Ball is cradled in floating poppet to assure positive, in-line seating without “chatter”. Poppet is designed essentially foraxial flow with minimum pressure drop Materials: 316 Stainless Steel: body, cover, ball poppet,cover gland. 300 Series Stainless Steel: spring Minimum operating temperature for standard ball check valves -110°(-79°C)
More OptionsOptional O-Ring and ball type Optional wetted materials of cover gland and ball poppet for longer life Optional special materials available when corrosion, temperature, or NACE