Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
JINGNING Specialized In Rubber Expansion Joints
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China manufacture silicone duckbill drain valve back flow prevent
Rubber Duckbill Valves is a very reliable and cost effective check valve compare to flap check valves and other conventional check valves.This valve is a special product ,and it is used for draining sewage .In many foreign countries,such as Spain , America,it is usually named as duckmouth-shaped valve .We are doing our best to make this valve more practical and more perfect .The valve can be matched with steel pipe ,cement pipe .At the same time ,they may be widely used on the coast,seasands,reservoirs,and so on.In order to dispose the sewage or to dredge the floods.
Specification
For BS EN1092-2 PN10/16 flange mounting.
Face-to-Face dimension conforms to ISO 5752 / BS EN558.
Epoxy fusion coating.
Pressure and temperature
| working pressure | PN10/PN16/PN25 |
| testing pressure | Shell: 1.5 times rated pressure, Seat: 1.1 times rated pressure. |
| working temperature | -10°C to 80°C (NBR) -10°C to 120°C (EPDM) |
| suitable media | Water, Oil and gas. |
Main material list
| part | material |
| body | Chloroprene rubber, Neoprene, NBR & EPDM rubber, etc. |
| seat ring | NBR / EPDM |
| seat | metal |
Features & Benefits
• Packaged in pallet box containers or on pallets, adequately protected for shipment.
• Each valve is individually tested.
• Various materials and services available to meet your unique requireme
Application:
Mainly used in water systems,drainage systems,outlet of water pumps and upgrading the pumping station and liquid aeration system.Rubber flange and valve body are as a whole, so the installation is very convenient.The valve body is designed with a full rubber, which will not cause siltation and stickin. It reduces the maintenance cost, and allow the solid particles to pass smoothly.
