PLAST-O-MATIC CKM Normally Closed Check Valves 1/2″ – 1″

Description of PLAST-O-MATIC CKM

FEATURES:

• Patented Design: Self-sealing – are not dependent upon gravity, mounting position or reverse flow, a significant improvement over ball check valves.
• Silent Operation: No internal sliding or loose parts to slam or vibrate – chattering is eliminated!
• Dependability: Leak-free sealing protects against the potential hazards created by reverse flow of corrosive liquids such as acids, caustics and chlorine solutions.
• Repetitive Long Term Sealing: Diaphragm automatically positions itself against seat in the identical location. Superior to ball check valves which often leak at lower pressures.
• Convenience: Union nut simplifies valve inspection/removal with minimum piping breakdown.
• Minimal Cracking Pressure: Diaphragm begins to open at approximately 1.0 to 1.5 PSI.
• Cost Efficient: Designed to improve system performance and competitively priced.

OPERATION:

Flow entering the valve inlet will open the valve by pushing the diaphragm off the valve seat until it comes to rest on the internal stop. This supports the diaphragm and eliminates force or stress under high flow condition. In this position both the diaphragm and valve seat are kept clean by the flushing action of the internal flow, keeping the entire sealing area free of particles which could cause leakage.

If inlet flow is stopped, or if a backflow of higher pressure occurs, the valve will automatically close. Reverse flow is not required to close the valve.

Technical specifications of PLAST-O-MATIC CKM

MATERIALS OF CONSTRUCTION:

• Plast-O-Matic Series CKM Check Valves are molded of Type 1, Grade 1, PVC (Polyvinyl Chloride), Glass-filled Polypropylene, Natural Polypropylene, Corzan CPVC, and Kynar PVDF in sizes 1/2″, 3/4″ and 1″, with choice of threaded or socket connections.
• Natural Polypropylene is available in sizes 1/2″, 3/4″ and 1″, with socket connections only.
• PTFE is available in a machined version Series CK, sizes 3/4″ and 1″, with threaded connections only. Diaphragms are of EPDM or FKM (Viton).

DESIGN VALVE INLET DIAPHRAGM

• Series CKM & CK Check Valves, normally closed in design, feature a patented diaphragm seal that will neither stick nor chatter and is automatic in action.
• The valves are not dependent upon gravity so they can be mounted in any position.
• Even in the absence of reverse flow or pressure, the diaphragm will automatically reposition itself to seal against the valve seat.
• This is achieved with or without the presence of reverse flow.
• The unique and patented diaphragm will seal in the identical location every time producing a more reliable and repetitive seal.