Piston Separator

Transfers pressure readings to gauges and recorders in remote locations

The Forum 517038 Piston Separator is a 1:1 ratio device that transfers well fluid pressure (such as cement, acid, and mud) to a remotely located gauge or recorder.

The Piston Separator handles working pressures up to 15,000 psi delivered through a ¼-inch high-pressure hydraulic hose.

  • Working pressure up to 15,000 psi
  • Proof test pressure ratings made at 150% of working pressure ratings
  • Volumetric capacity (full stroke): 13.4 cubic inches (220 cubic cm)
  • Mounting pipe size: 2-inch
  • Dimensions:
    • Height: 13.5 inches (34.3 cm)
    • Width: 7 inches (17.8 cm)
    • Weight: 28 pounds (12.7 kg)


Piston Separator Models

Model Maximum Working Pressure Description


15,000 PSI

Separator with welded female sub


10,000 PSI

Separator with threaded female sub


15,000 PSI

Separator without sub


10,000 PSI

Separator with welded female H2S sub and nut


10,000 PSI

Separator without sub, with H2S nut



Separator only, with nut and female sub of your choice