The bar stock service valve is used in split system to connect indoor unit and outdoor unit, 

which is compatible with R22, R407c, R410a. 

With the operation of stem, the valve can shut off the circuit for servicing. 

And it can be used to vacuumize and recharge the unit during maintenance. 

It can also be used in the other system.

Work Principle: Rotate the stem clockwise to close the valve and shut off the flow,

rotate the stem counterclockwise to open the valve and start the flow.

Tube Size

Ø9.52

Ø12.7

Ø15.88

Ø19.05

Ø22.22