CHECK VALVE RUBBERS
Backflow prevention with superior elastic memory and pressure ratings.
Chaudhary Rubber's Check Valve Rubber Flaps and Duckbill Valves are engineered for installations requiring reliable, automatic non-return function without external actuation. Produced from high-resiliency natural rubber and EPDM blends, these components snap shut instantly upon reversal of differential pressure — preventing costly backflow contamination in water mains, sewage ejectors, and process pipelines. Our proprietary compound delivers consistent elastic memory even after extended compression, ensuring repeatable response from the first cycle to the hundred-thousandth.
KEY FEATURES
Instant Snap-Shut Action
High-resiliency compound closes within milliseconds of flow reversal — minimizing water hammer effects.
Consistent Elastic Memory
Proprietary cross-link density retains original geometry and compliance across 100,000+ cycles.
Anti-Contamination Design
Smooth interior surfaces resist biofilm buildup — approved for potable water contact per IS 4984.
Custom Cracking Pressures
Hardness and geometry tuned to your system's differential pressure requirements on request.
SPECIFICATIONS
APPLICATIONS
- checkMunicipal Water Mains
- checkSewage Ejector Systems
- checkIrrigation Return Lines
- checkIndustrial Process Piping
- checkFire Suppression Networks
MATERIALS
CERTIFICATIONS
NEED CUSTOM SPECIFICATIONS?
Our engineering team can adapt any product to your exact requirements — bore size, hardness, compound, and surface finish. Request a technical consultation today.
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