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Wafer Type Butterfly Check Valve
Product overview
DH77X Wafer type butterfly check valve is an energy-saving product that our factory adopts foreign advanced structural design and complieswith relevant national standards. This product has good non-return performance, safety and reliability, and small flow resistance coefficient. Itis mainly used in petroleum, chemical, food, pharmaceutical, textile, papermaking, water supply and drainage, smelting, and energy systems, asa check valve.
Product Features
1. Reasonable product structure, reliable sealing and excellent performance;
2. Hardfacing hard alloy for sealing surface of valve disc and seat, wear resistance, high temperature resistance, corrosion resistance and long service life;
3. Unobstructed flow channel and low fluid resistance;
4. Disc stroke is short and valve closing impact is small.
Execution Standard
Design spec：JB/T 8937
Face to Face：JB/T 8937
Flange end：GB/T 9113、JB/T 79、HG/T 20592
Test & check：GB/T 26480、GB/T 13927
Performance Parameter
Nominal diameter：DN40~600mm
Nominal Pressure：PN1.0～1.6MPa
Applicable media：Water, steam, oil, nitric acid, strong oxidizing medium, acetic acid and urea
Applicable temperature：0≤80℃
Main materials：WCB(A105)、ZG1Cr18Ni9Ti
