top of page

The Schultz 3-Way Differential Pressure Test Valve is designed to allow a hydraulic test movement of the D/P gauge piston. This is done by venting the lower piston chamber, and allowing the line pressure to drive the piston into its maximum low position. During this test, you observe the piston's movement to insure smooth and continuous operation.


To perform this test, the filter must be flowing fuel through the system. With 3 - way valve clockwise, observe the pistons movement to scale. The valve will automatically return the gauge to its normal operation pressure when the handle is released.


Valve may be mounted on the bottom of the gauge, or remotely installed on panels or walls, using tubing.



  • Works with two ranges of D/P Gauges:
    • ( 1 ) 0 - 15 psi
    • ( 2 ) 0 - 30 psi
  • Stainless Steel & Aluminum Alloy
  • Seals, Viton & Teflon
  • Stainless Steel Ball
  • Single hand Test Operation
  • Stop Pins to prevent Seal Damage



3-Way Differential Pressure Test Valve

SKU: SC-9600
    bottom of page