Pilot Operated Gas Regulators - PTR-1

Title/Specs Body Size Maximum-CV
PTR-1 1/2", 3/4, 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4" 198

Model PTR-1 is high performance, pressure loaded diaphragm-type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing pistoncylinder that provides high flow capacity and high pressure drop capability. Performance meets or exceeds that of
competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is piped to the top of the dome and is "set" to control the outlet pressure of the pressure reducing regulator. In addition, a low temperature probe (pneumatic controller) with an integral, rigid insertion bulb and invarrod is installed up-stream of the Model PTR-1. When the exposed outer sheath sense a change in the process temperature below the minimum temperature set point of the probe, it vents loading pressure from the dome of the regulator and allows it to close.


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