Double-Door Check Valves

Posted · Add Comment
Print Friendly, PDF & Email
Double-Door Check Valves (Series CV-H)

Protect against flow reversal with Double-Door Check Valves (Series CV). These check valves are manufactured with lightweight disks and quick, responsive springs for automatic closure for top performance. Find a range of dimensions, in working pressure ratings of up to 200psi and a range of temperature ratings. Additional seat material options are available upon request.

FEATURES

  • Small, lightweight, and easy to maintain.
  • Two torsion springs close valve plates quickly and
    automatically.
  • Quick spring action prevents back-flow, eliminates water
    hammering, and provides minimal head loss.
  • Valve can be installed vertically or horizontally.
  • Applications include HVAC, compressed air; Water supply and discharge; Irrigation and reclaim water; Process water

DIMENSIONS

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE STATED
API Part NumberNominal SizeBØEØAApproximate Weight lbs
CV0200-XXXX-EP21.702.564.133.3
CV0250-XXXX-EP2.51.813.154.805.3
CV0300-XXXX-EP32.523.705.207.9
CV0400-XXXX-EP42.524.616.1812.6
CV0500-XXXX-EP52.765.717.4016.1
CV0600-XXXX-EP62.996.698.5819.8
CV0800-XXXX-EP83.508.8210.5537.5
CV1000-XXXX-EP104.4910.4312.9157.3
CV1200-XXXX-EP124.4912.2016.0292.6
CV1400-XXXX-EP145.0014.1717.52121.3
CV1600-XXXX-EP165.5116.1420.08165.3
CV1800-XXXX-EP185.9817.7221.54225.0
CV2000-XXXX-EP205.9819.8823.78236.0
CV2400-XXXX-EP247.0124.5728.50365.0

PART NUMBER STRUCTURE

Part Number SectionOptions
TypeCV = Check Valve
SizeXXXX = Size in inches going out 2 decimal places
Disc Material
*Denoted with "XXXX"
NPDI = Nickel Plated Ductile Iron
304 = 304 Stainless Steel
Seat MaterialEP = EPDM

OPERATING CONDITIONS

Nominal Size2"-18"20"-24"
Working Pressure200 psi150 psi
Test PressureShell300 psi225 psi
Seat220 psi168 psi
Working TemperatureEPDM Seat10⁰-250⁰ F10⁰-250⁰ F

MATERIALS

PartMaterial
BodyCast Iron - ASTM A126 Cl. B
DiscNickel Plated Ductile Iron OR
304 Stainless Steel
Hinge PinStainless Steel
Stop PinStainless Steel
SpringStainless Steel
SeatEPDM
FinishEpoxy Coated - Blue
Notes:
  • Not for use in Oil & Gas industries.
  • Valve seat is available in other materials including Neoprene and NBR (may be subject to minimum order quantity)

REPLACEMENT SPRING KITS

API Part NumberDescription
CVK04004" KIT (1 SHAFT; 2 SPRINGS)
CVK06006" KIT (1 SHAFT; 2 SPRINGS)
CVK08008" KIT (1 SHAFT; 2 SPRINGS)
CVK100010" KIT (1 SHAFT; 2 SPRINGS)
CVK120012" KIT (1 SHAFT; 2 SPRINGS)
CVK140014" KIT (1 SHAFT; 2 SPRINGS)
CVK160016" KIT (1 SHAFT; 2 SPRINGS)
Double Door Check Valves-Drawing