Check And Relief Valves

 

700 Series: Instrument Check Valves

  • Pressure rating to 3,000 psi (207 bar) at 70°F (21°C).
  • Temperature rating from -10°F to 375°F (-23°C to 191°C) with Viton O-ring seat standard.
  • O-ring provides leak tight shut-off.
  • Back stopped poppet design prevents the spring from being over-stressed.
  • Variety of springs are available for the cracking pressure in the range from 1/3 psi to 100 psi.
  • Wide range of body sizes allows Cv choices from 0.16 to 8.8.
  • Suitable for gas and liquids.
  • Variety of end connections include male/female NPT, ISO, BSP threads and female Hy-Lok tube fittings.
  • Body Material is standard in 316 stainless steel and brass.
 
700H Series: High Pressure Compact Check Valves

  • Pressure rating to 6,000 psi (413 bar) at 70°F (21°C).
  • Temperature rating from -10°F to 400°F (-23°C to 204°C) with Viton seat standard.
  • O-ring poppet design for replaceable high integrity seal.
  • Tight shut-off and accurate cracking pressure.
  • Cracking pressure includes 1/3, 1, 5, 10, and 25 psi.
  • Maximum flow design allows Cv choices from 0.67 to 4.7.
  • Suitable for gas and liquids.
  • Special applications are available in sour gas and fluorocarbon free.
  • Size range from 1/8″ to 1″ tubing and pipe.
  • Variety of end connections include male/female NPT, ISO, BSP threads and female Hy-Lok tube fittings.
  • Body Material is standard in 316 stainless steel
 

 

CVA Adjustable Check Valves

  • Pressure rating up to 3,000 psi (207 bar) at 70°F (21°C)
  • Temperature rating from -10°F to 375°F (-23°C to 191°C) with Viton seat standard.
  • One piece body construction
  • Wide range of cracking pressures
  • Ease of adjustment
  • Size range 1/4″ & 1/2″ pipe.
  • Body material is 316 stainless steel and Brass.
 
RV Series: Relief Valves

  • Pressure rating to 3,000 psi (207 bar) at 70°F (21°C) for RV1 low pressure, and up to 6,000 psi (413 bar) at 170°F (21°C) for RV2 high pressure.
  • Temperature rating from -10°F to 400°F (-23°C to 204°C) with Viton seat standard.
  • Standard 4.8mm (0.19in) orifice.
  • Cracking pressure range from 10 psi to 250 psi for RV1 and from 225 psi to 6,000 psi for RV2 series.
  • One spring adjustable over entire cracking pressure range for RV1 series.
  • Compact design for small space installation.
  • Cracking pressure adjustable externally.
  • Lock wire capability to maintain pressure relief setting.
  • Size range from 1/8″ to 1″ tubing and pipe.
  • Variety of end connections include male/female NPT, ISO, BSP threads and female Hy-Lok tube fittings.
  • Body material standard in 316 stainless steel.