Double-Door Check Valves (Series CV-H)

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Double Door Check Valves
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Double Door Check Valves

Double Door Check Valves-Drawing

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 Size B ØE ØAApproximate Weight lbs
CV0200-H21.702.564.133.3
CV0250-H2.51.813.154.805.3
CV0300-H32.523.705.207.9
CV0400-H42.524.616.1812.6
CV0500-H52.765.717.4016.1
CV0600-H62.996.698.5819.8
CV0800-H83.508.8210.5537.5
CV1000-H104.4910.4312.9157.3
CV1200-H124.4912.2016.0292.6
CV1400-H145.0014.1717.52121.3
CV1600-H165.5116.1420.08165.3
CV1800-H185.9817.7221.54225.0
CV2000-H205.9819.8823.78236.0
CV2400-H247.0124.5728.50365.0

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
NBR Seat10⁰-180⁰ F10⁰-180⁰ F
Viton Seat10⁰-275⁰ F10⁰-275⁰ F
Note: Not for use in Oil & Gas industries.

MATERIALS

PartMaterial
BodyCast Iron - ASTM A126 Cl. B
DiscDuctile Iron (Nickel Plated) OR
Stainless Steel
Hinge PinStainless Steel
Stop PinStainless Steel
SpringStainless Steel
SeatEPDM
Neoprene*, NBR*, Viton*
FinishEpoxy Coated - Blue

*– Available upon request (may be subject to minimum quantity requirements).

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)

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