焊接球阀 可安装锁紧装置 开关指示 压力测试:1/4¨-2¨ 1,500psi 21/2¨-4¨ 1,200psi 标准连接:焊接、卡箍连接 SMS.DIN.RJT.IDF活接连接 Actuator device can be upon requestde. air testde under water at 100psi Open and closed positions. Hydrostatic test pressure 1/4¨-2¨,500psi 21/2¨-4¨ 1,200psi Standard End:Weld