Oil and Gas Apps

Unfired Pressure Vessel Inspection Form

Use this mobile form to conduct scheduled inspections and tests on unfired pressure vessels before they are placed in service after major repairs or alterations. Ensure personnel, facility, and public safety, prevent environmental damages, reduce maintenance and operation costs, and minimize liability with each inspection. Document current conditions of the heat transfer surface to the temperature relief valves. Customize this form to adhere to pressure vessel design codes and use this form in both on and offline environments.

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Unfired Pressure Vessel Inspection Form



Region number



Date of inspection

Unfired pressure vessel information

Number of unfired pressure vessels in building subject to inspection

Plant pressure vessel number

Manufacturer's name

Manufacture's number

Type of pressure vessel

Type of supports

Date manufactured

Date installed in this location

Type of shell construction

Material and gauge of shell

Overall dimensions of shell

State service

Manufacture's rating


Design pressure

Maximum safe working pressure

Maximum pressure under which vessel is now operated

Has shell operating pressure ever been reduced, based on an official recommendation?

If so, state details

Date of last inspection

Name of last inspector

Title of the last inspector

Type of heating or cooling medium

Description of heat transfer surface

Amount of tube surface

Number of tubes

Length of tubes

Diameter of tubes

Material and gauge of tubes

General condition of pressure vessel

Has the interior of shell been protected against corrosion?

If so, describe

Does the contain oil?

Does vessel contain grease?

Does vessel contain scale?

If so, to what extent are quantity considered serious?

Was pitting or a corrosion apparent?

If so, to what extent?

Does vessel show signs of distortion?

If so, to what extent?

Has corrosion inhibitor been used?

If so, describe inhibitor

Condition of heat transfer surface

Condition of tube supports

Shell pressure of

Did pressure vessel show defects under this pressure?

Was test pressure 1.5 times the maximum allowable working pressure as rated by the manufacturer?

Recommended maximum safe working pressure as a result of this test

Pressure relief valves




Are these valves also designed for temperature protection?

If not, is there any temperature protection or control?

State condition of pressure and/or temperature relief valve

Describe any other controls and state their conditions

Were release valves reset?

If so, for what conditions?

Condition of pressure vessel gauges and thermometers

What variation and pressure and/or temperature existed between pressure vessel gauges and thermometer and inspectors test gauge and thermometer at working pressure and temperature?

Were gauges and thermometers corrected or renewed?

Does vessel contain safety plugs?

Wear safety plugs renewed?

Condition of gauge glass, if fitted

Condition of pipe connections and attachments

Condition of heat transfer header manifold

Was heat transfer system tested for tightness?

What repairs were alterations have been made since last inspection and why were they made?

If toxic gases are used in pressure vessel, have adequate provision being made to protect personnel?

Has adequate provision being made for firefighting?

How do personnel in charge of this equipment grade?

In your opinion is this unfired pressure vessel in a safe condition to be operated?

Signature of inspector

Title of inspector

Recommendations and remarks by local officer or engineer in charge

Signature of officer in charge

Official title of the officer in charge