Refrigeration King Valve Positions
If the valve stem is all the way out the valve is considered to be in the back seated position.
Refrigeration king valve positions. Valve may be installed in any position full refrigeration service temperature range of 40 f to 325 f valves with access fittings also available. In the video andrew describes the following positions. The valve is front seated when the stem is turned all the way in clockwise. Back seated all the way out fully counter clockwise this position provides full operational flow through the valve body but is closed to the access port.
When referring to the king valve most air conditioning technicians are referring to the valve which is found downstream from a liquid line receiver. Full size ports for unrestricted flow non directional. It is also commonly referred to as a liquid. This catalog provides product data sheets of herl valves and components operating instructions how to order information and contact addresses.
The gauge port is closed and the valve is open allowing refrigerant to flow through the system. Service valves can be set to three different positions figure 3. If the valve stem is all the way in the valve is considered to be in the front seated. This position is called front seated because the valve is seated on the front port of the valve.
Additional information in the appendices provide ce declaration of conformity and safety guide. The king valve is unique in its position because it allows you to pump down a system by closing it and running the compressor until all or most refrigerant is pumped out of the low side of the system and into the condenser and receiver. Check out a demo of housecall pro here. There are three positions in which the valve can be oriented.
These types of valves have no schrader port so there will be no pressure on the port when the valve stem is back seated. Https amzn to 2x8noge usa made refrigeration ratchet. The front seat position can be used to isolate refrigeration system.