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标题:Water sealed gate valve
正文:
Water-sealed gate valvesWater sealed gate valve Characteristics:1. S/Y Water sealed gate valve series usually use double disks and bi-directional flexible seal, open and close nimbly,reliable for seal.2. Have simple in structure, compact reasonable, examine and repair conveniently,gate valve operation life long3. Be used for on and off device on the pipe and must be full open and full closed, can not be used for regulate flow.4. Gate valves The connection type are flanged and welded, actuator are gear/handle and electrical.Gate valve Design and manufacture standard:Design and manufacture:GB12234Flange size: GB9113 JB7490Pressure and temperature: JB/T74 GB9131Welded size:-Test and inspection: JB/T9092 GB13927Gate valve Main Function Specification; Nominal pressure(MPa) Shell test 1.0 1.6 2.5 4.0 6.4 10.0 Seal test 1.5
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