District Regulator Station Inspection and Overpressure Protection Check

Inspection template for district regulator stations covering regulator condition, relief and monitor configuration, sensing lines, overpressure protection devices, signage, and leak/safety conditions.

Inspection Details and Station Identification

• Station ID, location, and date recorded
  Record the station identifier, physical location, inspection date, and inspector name.
• Inspection scope confirmed against site SOP and current work order
  Verify the inspection scope matches the applicable SOP, maintenance record, or work order.
• Area access authorized and safe for inspection
  Confirm access is authorized and the inspector can safely approach the station without exposure to traffic, ignition sources, or other hazards.
• Required PPE worn
  Select all PPE used for this inspection.

Regulator Condition and Configuration

• Primary regulator body free of visible damage, corrosion, or tampering
  Inspect the regulator housing, diaphragm area, vents, and fittings for cracks, corrosion, deformation, missing parts, or evidence of unauthorized adjustment.
• Regulator outlet pressure within specified operating range
  Record the measured outlet pressure and compare it to the station setpoint and allowable operating range.
• Regulator setpoint matches approved station design
  Verify the regulator setpoint corresponds to the approved engineering design or current operating procedure.
• Regulator vent piping unobstructed and properly routed
  Confirm vents are clear, terminate in the correct location, and are not blocked by debris, ice, insects, or physical damage.
• Bypass valve position and seal condition verified
  Check that the bypass valve is in the required position, properly sealed or locked as applicable, and shows no evidence of unauthorized use.
• Regulator nameplate and identification legible
  Confirm the regulator manufacturer, model, pressure rating, and identification markings are visible and legible.

Relief, Monitor, and Overpressure Protection

• Overpressure protection configuration matches approved design
  Verify the station includes the required protection arrangement, such as relief, monitor, slam-shut, or other approved overpressure protection device(s), consistent with the station design.
• Relief valve or monitor regulator functional test completed
  Confirm the required functional test was performed and the device responded as intended within the approved test procedure.
• Relief discharge path clear and directed to a safe location
  Inspect the discharge piping or vent outlet for blockage, damage, corrosion, or discharge toward personnel, ignition sources, or confined spaces.
• Monitor regulator installed and configured correctly
  Verify the monitor regulator is installed in the correct orientation and sequence, with setpoints and sensing arrangement matching the approved configuration.
• Slam-shut or overpressure shutoff device operational
  If installed, verify the shutoff device is armed, reset correctly, and free of defects that would prevent operation.
• Overpressure protection test pressure recorded
  Record the test pressure or trip point observed during the functional check.

Sensing Lines, Valves, and Instrumentation

• Sensing lines intact and leak-free
  Inspect sensing lines for kinks, cracks, loose fittings, corrosion, vibration damage, or evidence of leakage.
• Sensing line isolation valves in correct position
  Verify sensing line valves are open or otherwise positioned per the approved operating configuration.
• Pressure gauges readable and within calibration date
  Confirm gauges are legible, undamaged, and within the required calibration or verification interval.
• Impulse tubing and fittings secure
  Check that tubing, ferrules, and fittings are secure and not rubbing against sharp edges or vibrating components.
• Instrumentation readings stable during inspection
  Observe whether pressure readings remain stable and consistent with expected station operation during the inspection window.

Station Safety, Housekeeping, and Signage

• Gas odor, audible leak, or visible leak present
  Indicate whether any odor, audible leak, frost, bubbling, or other evidence of gas release was observed.
• Area free of ignition sources and combustible accumulation
  Verify the station area is free of smoking, open flames, hot work, trash, vegetation buildup, and other combustible or ignition hazards.
• Access gates, fencing, and locks intact
  Confirm physical security controls are intact and the station is protected from unauthorized access.
• Warning signs and emergency contact information legible
  Check that required warning signage, emergency contact numbers, and station identification are present and readable.