Double Discs Wafer Check Valve(Bronze)

The wafer check valve is used in PN1.0MPA-42.0MPA
Class150-2500.DN15-DN1200,NPS1/2-48.
Working temperature-196-540 deg etc, many kinds of pepelines, which can prevent the refluence of medium, and can be applicable to water, steam,oil.nirtic acid, high oxidizability mediums,urea and so on , via choosing different types of materials
Main materials: carbon steel, low temperature steel ,dual phase steel, titanium alloy, aluminum bronze, INCONEL, stainless steel, chrome-molybdenum steel , monel(400/500),20#alloy, haynes alloy etc.
Standard and specification of Swing Check Valve
1. design and manufacture: API594.API6D,JB/T8937,
2. face to face: API594 ,API6D,DIN3203,JB/T8937
3. Grade od pressure-temperature; ANSI16.34 DIN2401 GB/T9124 HG20604 HG20625 SH3406 JB/T74
4. Test and inspection: API598 JB/T 9092
5. Flange:JB/T74-90,GB/T9112-9124,HG20592-20635,SH3406,ANSIB 16.5,DIN2543-2548 ,API605.ASMEB16.47.
Design feature of Swing Check Valve:
1. short length structure, which is only 1/4-1/8times the length of conventional flange connecting check valve.
2. small volume and light weight
3. quickly closed by the disc,smell pressure of hammer blow,
4. which can be used in horizontal pipeline or vertical pipeline, and also has convenient mounting.
5. very nice flow channel and small fluid resistance, yare acting and best sealing, short journey od the disc, small impact force of closing. Integral structure ,simple and compact ,beautiful sculpt, long life of using ,high reliability.