Rubber Duckbill Check Valve

XH-81 PN16 large-diameter clamp type duckbill check valve prevents backflow in water systems. Available in sizes DN50 to DN1600 with temperature range -20℃ to 150℃. Ideal for sewage treatment, urban drainage, irrigation, and industrial applications. Features nitrile rubber construction, corrosion resistance, and custom material options including EPDM and NBR.

XH-41 EPDM rubber duckbill check valve provides reliable backflow prevention for industrial wastewater systems. Corrosion-resistant construction with maintenance-free operation, available in sizes from DN50 to DN1600 and temperature range -20°C to 150°C. Ideal for coastal, marine, and reservoir applications with international export experience.

SS304 stainless steel duckbill check valve with nitrile rubber lining, DN50-DN1600 size range, 1.0 MPa working pressure. Corrosion-resistant, maintenance-free design ideal for sewage discharge, wastewater treatment plants, and industrial drainage applications with flanged connections.

Industrial-grade ANSI 150LB duckbill valve featuring automatic backflow prevention, corrosion-resistant construction, and clamp connections. Available in sizes DN50 to DN1600 with pressure ratings of 1.0-2.5 MPa and temperature range of -20℃ to 150℃. Cost-effective alternative to metal check valves with easy installation and maintenance-free operation.

Industrial-grade duckbill check valve with galvanized flange and EPDM rubber construction. Prevents backflow in sewage systems, water conservancy, marine engineering, and industrial applications. Features excellent sealing, corrosion resistance, and sizes from 50mm to 1200mm. DIN standard flange drilling PN10/PN16 with carbon steel or stainless steel options.

SS316 stainless steel duckbill check valve featuring automatic pressure-differential operation, zero leakage backflow prevention, and corrosion-resistant construction. Available in sizes from DN50 to DN3000 with galvanized surface treatment for sewage treatment, petroleum, and chemical applications. Custom manufacturing available with 7-14 day delivery.

Full rubber structure duckbill check valve with EPDM treatment for sewage and wastewater applications. Features automatic operation with 0.01m opening pressure, corrosion resistance, and maintenance-free design. Available in sizes from DN50 to DN1200 with customizable installation options for industrial treatment systems.

Maintenance-free EN 1092-2 flanged duckbill check valve with flexible neoprene rubber construction. Prevents sewage backflow and flooding in industrial, municipal, and agricultural applications. Available in sizes from 50mm to 1200mm with carbon steel or stainless steel flanges. Features zero maintenance, corrosion resistance, and superior sealing performance for reliable fluid control.

High-performance 8-inch rubber duckbill check valve made from weather-resistant EPDM material with reinforced synthetic fibers. Features flanged connection for easy installation, prevents floodwater intrusion, controls sewage backflow, and ensures reliable drainage system protection. Available in custom sizes and pressure ratings for municipal water management and industrial applications.

Full rubber duckbill drain valve with 1.0-2.5 MPa pressure rating and 0.01m opening pressure. Maintenance-free design with corrosion-resistant materials for sewage, rainwater, and industrial applications. Available in sizes from 50mm to 1200mm with flexible installation options.

Prevent backflow with flexible elastomeric duckbill design. Corrosion-resistant for seawater, sewage, and acid media. Low pressure start-up at 0.1Bar. Durable export-grade quality with customizable sizes and materials like NR, EPDM, NBR.

Durable rubber duckbill check valve with EPDM construction for weather resistance. Flanged connection, self-cleaning design, low head loss. Ideal for drainage, industrial, and environmental applications. Custom sizes available.

Industrial-grade EPDM rubber duckbill check valve with SS316 flanges and ANSI 150LB rating. Features maintenance-free operation, anti-clog design, and excellent backflow prevention. Available in sizes from 50mm to 1200mm pipe diameter for wastewater, marine, and flood control applications. 12-month warranty included.

EPDM rubber duckbill check valve with DN100 flange connection designed for sewage discharge systems. Features automatic pressure-based operation, excellent sealing with zero backflow leakage, and superior corrosion/abrasion resistance. Available in multiple sizes from DN50 to DN1200 with working pressure of 1.0-2.5 MPa. Ideal for demanding industrial applications requiring weather durability and long service life.

High-grade EPDM rubber duckbill check valve prevents backflow in pipelines. Flanged design ensures leak-free connection. Durable, weather-resistant, and ideal for wastewater, stormwater, and flood control. Custom options available. Reliable passive operation.

Durable ductile iron flanged duckbill check valve for backflow prevention in water, sewage, and chemical systems. Sizes DN32-DN2000, pressure PN0.6-1.6. ISO 9001 certified, customizable, and corrosion-resistant EPDM rubber for reliable, low-maintenance operation.

Durable rubber duckbill check valve with flange connection for seawater and wastewater. Passive backflow prevention, low pressure start at 0.1Bar. Corrosion resistant, custom sizes DN50-DN1200. Ideal for outfall, stormwater, and flood control systems.

Durable EPDM rubber duckbill valve with carbon steel flange, sizes DN50-DN1600. Prevents backflow and odors in drainage systems. Customizable length, withstands 1.0-2.5Mpa. 20+ years manufacturer experience.

Durable full rubber duckbill valve with SS304 clamp for leak-proof sealing. Features no moving parts, low noise, and minimal opening pressure. Ideal for sewage and rainwater. Custom sizes DN50-DN1200 available with OEM support.

100% all-rubber anti-corrosion structure with no clogging and excellent sealing. Maintenance-free, no moving parts, and opens at low head. Customizable installation forms. Durable composite rubber and stainless steel clamp for long service life.