The manufacturer of all PVC or CPVC bleach ball valves must complete all components prior to the factory assembly, test, and packaging of those valves.
2
带法兰连接的球阀或替代阀门由承包商提出建议,由业主批准。
Ball Valves with flanged connection to be or an alternative as per Contractor's recommendation, subject to approval by Client.
3
黄铜的主要用途是球阀阀杆和球体,和铸铁阀门的阀杆。可锻黄铜可用于球阀阀体和断口部件。
Primary uses for wrot brass are for ball valve stems and balls, and iron valve stems. a forging grade of brass is used in ball valve bodies and pieces.