• Check valves with built-in stop valve function / check valve only
• Designed to open at a very low differential pressure of 0.04 bar
• Precise and tight closing towards valve seat


Description

For Industrial Refrigeration: Danfoss has developed SCA check valves with a built-in stop valve function and CHV check valves only.

Technical Specifications
  • SCA are equipped with vented cap and have internal backseating enabling the spindle seal to be replaced whilst the valve is still under pressure
  • Applicable to all common non flammable refrigerants and non corrosive gases/liquids dependent on sealing material compatibility
  • Designed to open at a very low differential pressure of 0.04 bar (0.58 psig)
  • Designed with a built-in damping chamber preventing valve flutter, due to low refrigerant velocity and/or low density
  • Internal backseating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure
  • Housing and bonnet material is low temperature steel (SCA-SS and CHV-SS are in stainless steel)
  • Stainless steel bolts
  • Pressure range SCA/CHV: 40 bar g / SCA-SS/CHV-SS: 52 bar g
  • Temperature range: –60°C/+150°
Advantages
  • Allow favourable flow conditions 
  • Easy to disassemble for inspection and service
  • Laser cut V-ports provide excellent opening characteristics (SCA/CHV 50-125)
  • Precise and tight closing towards valve seat: through built-in flexibility in valve core
  • Optimal protection during low loads and against pulsations: through well balanced dampening effect between the piston and the cylinder 
  • Optimal flow characteristics ensuring quick opening to the fully open position
  • Easy to disassemble for inspection and service



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