Working Principle: 1\ Round disc is used as mechanism for opening and closing, and it rotates together with the stem to open, close and adjust fluid.
Specifiction: Centre contraction;Phenolic(Alumin) backed Seat;Available Lining NBR/EPDM/CSM/FPM or U-TYPE Seat;Available Nylon or PTFE Or Paint Coating Disc;Handlever Or Gear Operator
Technical Paramater: Normal Size: 2"~12" Pressure Rate: Class125, BS PN10/16, DIN PN10/16; Working Temperature: 0℃~80℃ Working Medium: Water
Design: MSS SP-67; Manufacture: Factory STD; Face To Face: MSS SP-67; Groove end: AWWA C606;
Installation Instructions:
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