PN16 DN100 Wafer Dual Plate Check Valve

Short Description:

The dual-plate check valve opening and closing member is opened or closed by the medium flow and the force to prevent the back flow of the valve from being called a check valve. Check valves are automatic valves, mainly used on pipes with one-way flow of media, allowing only the media to flow in one direction to prevent accidents.

The dual-plate check valve is used for pure pipelines and industrial, environmental, water treatment, high-rise building water supply and drainage pipelines to prevent reverse flow of media. The check valve adopts a clip type, the butterfly plate has two semicircles, and the spring is forcibly reset, and the sealing surface can be a body wear welding wear material or a lining rubber, and the utility model has wide application range and reliable sealing.


Nominal Diameter: 1-1/2″ – 48″(DN40 – DN1200)

Pressure range: Class150- Class2500 (PN16- PN420)

Working temperature: -196℃ - +560℃

Body material: Cast Iron, Ductile Iron, Carbon steel, LCB, LCC, Stainless steel,

Supper Duplex Steel (F51/F55), 4A, 5A, Alloy steel, Aluminum Bronze.


Design and manufacture: API594, API 6D

Face to face: API594, API6D, DIN3202

End Connection: ANSI B16.5, DIN2543-2548, ASME B16.4, API605

Inspection and test: API598

Product Detail


Product Tags


1) Size: (1-1/2”-48”)DN40 to DN1200
2) Class: PN10, PN16.125LB, 150LB
3) Type: Double Disc, Single Disc, wafer type, NBR/EPDM/VITON/PTFE Seat
Design and manufacture: API594
Tests: API598; DIN3230
Flange standard: DIN2501 PN10/PN16; BS4504 PN10/PN16;BS10 TABLE”D”/”E” /JIS2220 10K/16K; ANSI125/150
Face to face: ANSI125/150; DIN3203 K3-1999
Applications: Water, industrial systems, Fresh water, sea water, waste water, food stuff, steam, all kinds of oil, all kinds of acid and alkaline liquid etc
Working temp: EPDM: -10°C~+120°C/NBR: -10°C~+80°C/VITON: -23°C~+150°C

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