Ball valve design includes reinforced/enhanced PTFE seats and electroless nickel plated brass ball, blow-out proof pressure retaining stem, and low profile oval handle.

• 球阀结构包括强化聚四氟乙烯（PTFE）阀座和非电解镍镀层黄铜球体，防吹出压力保持阀杆，以及低矮型椭圆手柄。