What is a Dry Valve?
A Dry Valve is a two position valve which is mounted directly to the inlet of the pump. In the first position, the dry valve shuts off the inlet flow to the pump while it is running except for about a ½ gpm that moves through the pump to lubricate it and carry away heat. In this position the hydraulic system is said to be in the “dry mode”. In the second position, the valve allows full flow to the pump inlet without any restriction. In this position the hydraulic system is in the “wet mode” or active.
Why use a Dry Valve?
1) Cost Savings - A dry valve eliminates the need to use a clutch assembly or PTO (Power Take Off) to disengage the pump from the prime mover.
2) Horse Power Savings - A pump with a dry valve uses a very small amount of horse power in the dry mode compared with a direct drive pump sending flow through an inactive open center system.
Dynaco Hydraulic supply the P75 P76 Dry Valve Pump. If you have any further questions on this or any of our other hydraulic products, please contact us for more information
Contact Person: Mr. William Chin
Tel: +86 13951634086