# HAR 6-77-55 Compressor stations: pressure limiting devices

- **operation:** document
- **citation:** HAR 6-77-55
- **title:** HAR 6-77-55 Compressor stations: pressure limiting devices
- **source type:** regulation
- **agency:** Hawaii Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** 1994-04-15
- **effective on:** 1994-09-03
- **summary:** must have pressure relief or other suitable protective devices of sufficient capacity and sensitivity to ensure that the maximum allowable operating pressure of the station piping and equipment is not exceeded by more than ten percent. (b) Each vent line that exhausts gas from the pressure relief va
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- **source url:** https://puc.hawaii.gov/wp-content/uploads/2026/04/HAR-6-77-Transp-of-Gas-03-31-2026.pdf
**body:**

must have pressure relief or other suitable protective devices of sufficient capacity and sensitivity to ensure that the maximum allowable operating pressure of the station piping and equipment is not exceeded by more than ten percent. (b) Each vent line that exhausts gas from the pressure relief valves of a compressor station must extend to a location where the gas may be discharged without hazard. [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.169, October 1, 1990)
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