Model "DHTE" High Temperature Presco-Switch® 
The Model "DHTE" High Temperature Presco-Switch is a pressure-responsive device that opens or closes one or more integral electrical switches at predetermined set points in order to:
- start or stop pump motors for pump jacks, electric submersible pump systems and pumping well heads
- stop gas engines
- control valve operations
Switch Features –
- Unlike the Wood Group Pressure Control lower temperature Presco-Switches, the "DHTE" is only available in the "F" Type (fixed differential) switch arrangement
- Switch setting is adjustable within the pressure range of the switch
- Fixed differential is approximately 4% of the pressure switch range
- Convenient microswitch adjustments make field setting easy
- The switch housing's explosion-proof design is CSA approved for Class 1, Group D, Hazardous Locations
Pressure Sensing Base Features –
- External adjustment is calibrated for convenience and enables the operator to adjust the set point without removing the switch housing cover or turning off the power
- Interchangeable springs enable the base unit to be used for a variety of pressure ranges
- Accurate operation and repeatability are provided by the smooth plunger movement and precision manufacturing
- Long life is ensured by a guided plunger, resulting in a useful life that exceeds other types of pressure switch mechanisms
- High proof pressure is provided by a positive plunger stop so that the "DHTE" switch will withstand overpressure and surges
- Rugged design enables the "DHTE" switch to withstand severe operating conditions including shock, moderate vibration and corrosion
- Standard male 2" NPT pressure sensing connection provides a solid mount that will not plug off or freeze readily
- Canadian Registration Number is 0F08082.2
