Example valves would include a shut-off valve for an economizer cycle, an unloader valve, or a suction modulationvalve.
作为示例的阀可包括经济器循环的断流阀、卸荷器阀或吸入调节阀。
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Vacuum partial pressure control system is composed of computer system, vacuum modulationvalve and partial pressure pump, of which the valve is one of key parts of the equipment.
The generalized pulse code modulation (GPCM) control valve is a type of combination valve, and each flow control unit is connected together by mono-block.