Wafer check valve: Wafer rising check valve

Use:                                                                                                                                                                                                                               

wafer check valve is applicable for various pipelines with nominal pressure of PN1.0Mpa-42.0Mpa,Class 150-2500 and nominal diameter of DN15-1200mm,NPS1/2-48 and working temperature of -196~540°C to be used for protecting from medium backflowing.The different materials selection can apply to the medium involving water,steam,oils,nitric acid,acetic acid,strong oxidizing medium and urea etc..

Standard and specification:                                                                                                                                                                                   

1.Design and manufacture:API594,API6D,JB/T8937;

2.Face to face and end and end: API594,API6D, DIN3202,JB/T8937;

3.Pressure-temperature ratings:ASME B16.34,DIN2401,GB/T9124,HG20604,HG20625,SH3406,JB/T74;

4.Inspection and test:API598,JB/T9092;

5.Pipe flange:JB/T74~90,JB/T9112~9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASM B16.47.

Structural feature:                                                                                                                                                                                                    

1.short structural length,only1/4~1/8 of that of traditional flanged check valve;

2.low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve;

3.Quick valve disc closedown,low water hammer pressure;

4.Applicable for and easily installed for vertical or horizontal pipelines;

5.Smooth flow passway and small fluid resistance;

6.Flexible action and good sealing performance;

7.Narrow valve travel and small closedown impact;

8.Integrated structure,simple and compact,in beautiful shape;

9.Long service life and good reliability.