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4-way directional control valve comprising four cam-operated modules, each containing a partially balanced plunger which is unseated when the handle is operated. In the closed position, the plunger makes a leakfree seal with the seat. Being dynamically biased towards closing, the seal becomes tighter as pressure rises.
A module can be readily withdrawn from the base of the valve body for servicing or renewing the seat or seals. Total handle movement of 90° gives positive detented selections at 45° intervals.
The valve is suitable for use with a wide range of fluids and is designed for working pressures of up to 10,000 psi. Torque required to operate the handle remains light throughout the pressure range.