Pneumatic pressure test: energy sources and direct controls

A pneumatic test uses compressed gas, which stores far more energy than water at the same pressure.

High-energy check

Treat pneumatic testing as high energy with a larger exclusion than hydrostatic testing. Stored gas energy releases violently on failure.

This task's main energy sources are not calculated by this tool. Use the trigger checks below and competent-person verification.

Estimate the stored energy of a pneumatic test

Trigger checks

Pressure
Compressed gas, liquid, hydraulic, pneumatic or vacuum energy.

Direct controls to verify

Ticks stay on this screen only. Nothing is saved or sent.

Pneumatic testing is justified and authorised in writing.
Exclusion distance is calculated for stored energy, not guessed.
No person enters the exclusion while the system is pressurised.
Pressure is raised in stages with holds at each stage.
Depressurisation is verified at every vent before approach.
Stop immediately on any unexpected sound or pressure change.

For your SPA or pre-start

State why pneumatic testing is required instead of hydrostatic, the calculated exclusion distance, the test authority and the depressurisation verification.

Limitations: This tool supports planning and verification only. It does not replace competent risk assessment, legal duties, employer procedures, client requirements or competent supervision.