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Refrigeration king valve positions.
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.
In the video andrew describes the following positions.
My paperback ebook.
In this position the line port is closed but the middle port is open to the service port figure 25 10.
The front seat position can be used to isolate refrigeration system.
Full size ports for unrestricted flow non directional.
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When referring to the king valve most air conditioning technicians are referring to the valve which is found downstream from a liquid line receiver.
This catalog provides product data sheets of herl valves and components operating instructions how to order information and contact addresses.
The valve is front seated when the stem is turned all the way in clockwise.
If the valve stem is all the way in the valve is considered to be in the front seated.
If the valve stem is all the way out the valve is considered to be in the back seated position.
Service valves can be set to three different positions figure 3.
Additional information in the appendices provide ce declaration of conformity and safety guide.
This position is called front seated because the valve is seated on the front port of the valve.
Valve may be installed in any position full refrigeration service temperature range of 40 f to 325 f valves with access fittings also available.
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.
It is also commonly referred to as a liquid.
