Pilot Gas Heaters Specialty Solution
The Caloritech™ Pilot Gas Heater is specifically designed to heat the pilot tube gas stream of an automatic pressure reducing valve. A large pressure reduction through the pressure reducing valve will create a temperature drop due to the Joule-Thomson effect. This temperature drop can cause moisture in the gas stream to accumulate and damage the internal seals in the valve. The Pilot Gas Heater combines a high efficiency aluminum casting with a temperature controller to maintain the pilot tube gas stream temperature regardless of the gas flow rate. This heater is designed to prevent damage to valve seals caused by freezing of entrained moisture while maintaining a temperature low enough to prevent damage by overheating. Two different control options are available. The PGH model incorporates a digital electric thermostat, and the PGHT model uses a mechanical thermostat for temperature control.