Disc check Valve - 580 | Cla-Val

Cla-Val 580 – Silent Wafer Check Valve

The Cla-Val Series 580 is a wafer-type check valve featuring a centrally guided, spring-loaded disc. The return spring closes the disc prior to full reverse flow, reducing slam and hydraulic shock in pump discharge lines. No actuator is required.

Construction

• Sizes: 1" to 10"
• Pressure class: 125/150 or 250/300
• Pressure rating: 250 psi for 125/150, 400 psi for 250/300
• Body: ductile iron ASTM A536 65-45-12
• Disc / seat / guide: stainless steel 304
• Spring: stainless steel 316
• Internal and external two-part epoxy coating
• Standard seat: metal-to-metal
• Optional soft seat: Buna-N

Installation

Valve may be installed horizontally or vertically. Technical datasheet allows for flow up or down; installation manual specifies horizontal or vertical with upward flow. For vertical downward flow, application suitability must be confirmed prior to selection.

Full face flanges and full face gaskets are required. Flexible couplings are not recommended. Piping must be free of debris, oils, grease, and welding residues before installation.

Applications

Suitable for water distribution, fire pump discharge, vertical turbine pumps, booster pump stations in high-rise buildings, and house pump systems. Selection should consider flow rate, head loss, pressure class, flange diameter, and seat leakage requirements.

Certifications

125/150 Class 4"–10" models are FM Approved. Both 125/150 and 250/300 series (1"–10") comply with US lead content requirements for potable water.

FAQ

Is maintenance required? No scheduled maintenance is required, but periodic inspection is recommended as part of plant maintenance routines.
Can it be repaired in-line? Yes, seat, disc, and spring are field-replaceable.