High-Low Piston (Stick) Pilots
Source: CAC Inc.
The CAC Model HL-2 high or low pressure pilot is designed to protect equipment and installations against abnormal pressures.
The CAC Model HL-2 high or low pressure pilot is designed to protect equipment and installations against abnormal pressures. It is available in pressure ranges to 15,000-PSI and can operate as a normally open block-and-bleed high pressure device, or a normally closed block-and-bleed low pressure device for pneumatic or hydraulic service. HL-2 pilot bodies and sense heads are available in any combination of the following five materials: 316 stainless steel, Hastelloy, duplex stainless steel, Inconel 625, or Monel 400. Unless specified, 316 stainless steel will be provided.
Pilot Function Selection
To use the pilot as a high pressure sensor, connect the supply pressure line to the upper inlet, stamped N.O. To use the pilot as a low pressure sensor, connect the supply pressure line to the lower inlet, stamped N.C.
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