Interface Valve with manual override

The Petro Controls “HCTH2C” interface is a 2-way, normally open, pilot operated, automatic hydraulic controller with manual override. It is normally installed in a SCSSV or SSV control panel. During normal operation, instrument pressure holds the controller in closed position. The supply pressure is blocked and the hydraulic system will maintain it’s required working pressure. When the instrument pressure is bleed off, the valve will vent the supply pressure to return.


  • Easy to install-the interface can be installed in line or mounted on a bracket.
  • Easy to maintain- The internals can be easily removed and replaced with a new internal to minimize down time.
  • Harsh environment: manufactured complete out SS316L with Viton and PEEK seats to meet corrosive environment requirements. Such as H₂S.

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