Yoshitake primary pressure (back pressure) reducing valve for water, oil & air model GD-20R
Yoshitake back (primary) pressure reducing valve


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Yoshitake primary pressure reducing valve for water, oil & air model GD-20R
(back pressure regulataor or pressure sustaining valve)
This product is used a lot in water piping system
Especially to maintain the pump motor's life time longer

This product is used to maintain a constant pressure in the water pipeline
If the pressure of the water in the pipeline increases due to the lower demand of water
This primary pressure reducing valve will open a bit to relieve the water back to the storage tank
So the water pressure in the pipeline is always controlled constant

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Link to Yoshitake air vent info
LInk to Yoshitake bucket strainer info