Two-Door Wafer Check Valve - 582 | Cla-Val | Philippopoulos s.a.
Two-Door Wafer Check Valve - 582 | Cla-Val | Philippopoulos s.a.

Two-Door Wafer Check Valve - 582 | Cla-Val

Cla-Val 582 Two-Door Wafer Check Valve

The Cla-Val 582 is a dual-plate wafer check valve designed for water distribution systems. It is installed between ANSI flanges and utilizes torsion springs to ensure both plates close prior to reverse flow, minimizing hydraulic shock (water hammer).

Construction

  • Body: Ductile iron ASTM A536 65-45-12
  • Plates: Aluminum bronze ASTM B148
  • Seat/sealing surfaces: Stainless steel
  • Springs: Stainless steel
  • Coating: Two-component epoxy, internal and external
  • Seat: Resilient Buna-N, molded and bonded to body

Dimensions and Pressure Ratings

  • Sizes: 2” to 36”
  • 2”–6”: Suitable for ANSI 150 and ANSI 300
  • 8”–36”: For ANSI 150
  • Connection: Wafer, between ANSI flanges
  • 10” and above: Lifting point with eye bolt provided

Applications

Applied in pump discharge lines, potable water networks, irrigation, booster sets, process water, and installations with limited face-to-face dimensions.

Comparison with Swing Check Valves

The closure travel of the dual plates is shorter than that of single-door swing check valves, enabling faster response to pump trip and reducing reverse flow prior to closure.

Selection Criteria

  • Flow rate and allowable pressure drop
  • ANSI flange class
  • Available installation length
  • Seat leakage requirements
  • Horizontal or vertical installation orientation
  • Compatibility with potable or process water

FAQ

Why select wafer type?
Used where compact installation and reduced weight are required compared to globe or swing check valves.

Function of torsion springs?
Springs close the plates before flow reversal, limiting slam and hydraulic shock.

Standard (Options)
  • ANSI
Connection (Options)
  • Flanged (Wafer)
Material (Options)
  • Ductile Iron
Pressure Rating (Options)
  • 150 lbs
  • 300 lbs

Datasheet and documents

Description

The Cla-Val 582 Series Two-Door Wafer Check Valve has torsion springs that force the two doors to shut before flow reversal, reducing the water hammer potential that normally occurs with single-door swing check valves. To help reduce water hammer, the two-door design also reduces the travel distance from open to shut off for a quicker response. Extremely short inlay length, the valve is both a compact and an economical solution.

Although lighter in weight than globe style swing check valves, Cla-Val Two-Door Wafer Check Valves are designed for heavy-duty applications.