Reversible-Flow-Type Linear Expansion valves for Heat Pumps
热泵用逆流式线性膨胀阀
BS ISO 19973-5-2015
Pneumatic fluid power. Assessment of component reliability by testing-Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves
气动流体动力 通过测试评估部件可靠性
2015-09-30
GB/T 38206.5-2021
气动元件可靠性评估方法 第5部分：止回阀、梭阀、双压阀（与阀）、单向节流阀及快排阀
Methods to assess the reliability of pneumatic components—Part 5: Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves
2021-08-20
ISO 19973-5-2015
Pneumatic fluid power — Assessment of component reliability by testing — Part 5: Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves
气动流体动力 - 通过测试评估部件可靠性 - 第5部分:止回阀 往复阀 双压力阀（AND功能） 单向可调流量控制阀 快速排气阀
2015-09-01
BS 7350-1990
Specification for double regulating globe valves and flow measurement devices for heating and chilled water systems
供暖和冷冻水系统用双调节截止阀和流量测量装置规范
1990-10-28
BS 7461-1991
Specification for electrically operated automatic gas shut-off valves fitted with throughput adjusters, proof of closure switches, closed position indicator switches or gas flow control
配有流量调节器、关闭验证开关、关闭位置指示开关或气体流量控制装置的电动自动气体切断阀规范