Flange Type Rubber Check Valve

Flange Type Rubber Check Valve

  • BrandLanphan
  • ColorCustomized
  • OriginZhengzhou, Henan, China
Flange Rubber Slowly-closing Check Valve is a newly designed valve product whose appearance is like a duck mouth, it relies on flange to connect to pipe. It has the function of “forward inflow, reserve flow cut off”.
DESCRIPTION

Flange type rubber check valve’s diameter gradually reduce along flow direction, and gradually forming a duckbill shape sealing parts, so it is also called flange type rubber duckbill valve. It can prevent flood and waste water to flow backward to sewer and basement, and avoid heavy loss; it can prevent flood to flow backward to waste water plant and drainage pump station; prevent waste water or peculiar smell fluid spread and can drain away water at any time; In rainy season, rubber check valve can prevent the flood of inland river from sewer to street.


Rubber material usually is Natural rubber and Neoprene rubber. Natural rubber is fit for waste water which includes alkali and acid; Neoprene rubber can wear UV, and fit for outdoor environments.

Flange Type Rubber Check Valve
DETAILS
Flange Type Rubber Check Valve

Product adopts mould pressing or spool technology, high gas tightness, rubber part is manufactured with cord polyester cord thread, small deflection.

Flange Type Rubber Check Valve

The flange made by Lanphan meet the international standard of DIN, ANSI,ASME, JIS,BS,EN and other standards, our flange thickness, smooth surface roughness, the accuracy of the caliber are within the tolerance of control thousand classification.

Flange Type Rubber Check Valve

Flange type rubber check valve is full rubber structure, with features of "positive inflows reverse backstop", it is a new drainage valve product.

SPECIFICATIONS
Pipe size ID Length (L) Height (H) Flange Outside Diameter (A)
DN NPS
50 2 150 100 150
80 3 220 140 200
100 4 250 200 225
150 6 340 265 275
200 8 420 325 338
250 10 520 425 400
300 12 620 525 485
350 14 700 625 525
400 16 800 725 588
450 18 900 825 625
500 20 980 925 688
600 24 1120 1025 800
700 28 1180 1125 969
800 32 1350 1400 1080
900 36 1500 1525 1150
1000 40 1600 1725 1325
1200 48 1840 1950 1485
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