The EVR CPJ Jacket Series Rubber Duckbill Check Valve is engineered for demanding environments that require secure backflow prevention combined with external jacketed reinforcement. Designed to withstand high pressures and flow rates, this valve ensures reliable operation in aggressive and heavy-duty media applications, while maintaining a full-port, low-pressure drop design.
Heavy-duty jacketed construction
Handles high-pressure flow conditions
Self-energizing, zero backflow design
DN 50 to DN 2000 (2” to 80”)
Reinforced elastomers with external jacket (EPDM, Neoprene, Nitrile, Natural Rubber)
Up to 10 bar
As low as 25 mm H₂O
Flanged or slip-on end connections
Steel or ductile iron for added rigidity
Drip-tight closure under low reverse pressure
Horizontal or vertical
High-pressure sewage and stormwater systems
Industrial effluent treatment plants
Pump stations and discharge outfalls
Mining and slurry pipelines
Desalination and marine discharge
Raw sewage and sludge
Chemical effluents
Stormwater and silt-heavy water
Slurries and abrasive fluids
Seawater and brackish water
Engineered for extended life in high-wear applications
Resists clogging, corrosion, and marine growth
Operates under fluctuating flow conditions
Full unimpeded flow when open
Bolt-on retaining rings or flanges
Flow diffusers or vortex breakers
Anti-fouling coatings
Custom thickness and reinforcement levels
From forging and casting to machining, assembly, and testing — every step is managed under one roof to ensure consistent quality, faster lead times, and zero compromise.
Get in touch with our team for additional information on product pricing, technical data, project support and more.
