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DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve

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DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve

Name: DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve
Brand: Lianghe
Price: 8.9 USD

Quality DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve for sale

Brand Name : Lianghe

Model Number : XH41

Certification : ISO 9001:2015

Place of Origin : China

MOQ : 1 set

Price : $8.9-$40

Payment Terms : T/T, D/P, D/A, Western Union, MoneyGram, L/C

Supply Ability : 2000 per month

Delivery Time : 7-10 work days

Packaging Details : Inside: Plastic Film ，Outside: Wooden Case

Keyword : Sewage duckbill check valve

Size : DN50-DN2000

Application : Water Treatment

Connection : Flange

Temperature of Media : Medium Temperature

Rubber material : EPDM,NBR,NR

Media : Water

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DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Duckbill Non Return Valve

Basic structure of flange duckbill valve
Flange duckbill valve is a valve that uses a rubber duckbill structure to achieve a one-way check function. It is installed in the pipeline system through a flange connection and is mainly used to prevent fluid backflow.

Composition
Valve body: usually metal (such as cast iron, carbon steel, stainless steel), with flange interface.
Duckbill part: elastic rubber material (such as NBR, EPDM, neoprene), flat duckbill shape, open and close with fluid pressure.

Working principle
Forward flow: fluid pressure opens the duckbill and the medium passes through.
Reverse flow: The duckbill closes under the action of back pressure, relying on elastic seal to prevent backflow, similar to the function of a one-way check valve.

DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve

Connection size of Flanged Rubber Duckbill Check Valve
Type	Nominal diameter of pipe	L(Length)mm	Height	External diameter of flange
XH4150-150-F	50	150	100	150
XH4180-220-F	80	220	140	200
XH41100-250-F	100	250	200	225
XH41150 -340-F	150	340	265	275
XH41200-420-F	200	420	325	338
XH41250-520-F	250	520	425	400
XH41300-620-F	300	620	525	485
XH41350-700-F	350	700	625	525
XH41400-800-F	400	800	725	588
XH41450-900-F	450	900	825	625
XH41500-980-F	500	980	925	688
XH41600-1120-F	600	1120	1025	800
XH41700-1180-F	700	1180	1125	969
XH41800-1350-F	800	1350	1400	1080
XH41900-1500-F	900	1500	1525	1150
XH411000-1600-F	1000	1600	1725	1350
XH411200-1840-F	1200	1840	1950	1485

Material selection
Valve body material: Cast iron, ductile iron, 304/316 stainless steel are selected according to the medium.

Duckbill material:
EPDM: Ozone resistant, aging resistant, suitable for -20℃~120℃.
NBR: Good oil resistance, suitable for oily wastewater.
Fluororubber (FKM): Resistant to high temperature (150℃) and strong corrosive media.

Core features
No mechanical parts: Relying on rubber elasticity, simple structure, low failure rate.
Self-cleaning design: Impurities can be flushed during opening and closing, suitable for media containing particles and fibers.
Low head loss: The flow channel is smooth when fully open, reducing pressure

Application areas
Drainage system: Municipal rainwater and sewage pipe network, pump station outlet.
Industrial field: Corrosive medium transportation in chemical and paper mills.
Environmental protection engineering: Seawater desalination, anti-backflow at the discharge outlet of sewage treatment plants.

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DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve

DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve

EPDM Flanged Duckbill Non Return Valve

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DN600 PN16 Weather Resistant Rubber EPDM Flanged Duckbill Non Return Valve Images