Valve Valve is an important pipeline component, there are many types of valves for refrigeration, if you want to achieve better refrigeration effect, you need high-quality control valves, the company can meet the needs of various customers, you are welcome to inquire. A 4-way reversing valve, also known as a 4-position directional control valve or a four-port valve,it is a type of control valve used in fluid power systems, The 4-way reversing valve is a critical duct component that provides hot and cold air flow from the air conditioning equipment to the space by rever…