What is the testing requirement for hose assemblies by the manufacturer?

The testing requirement for hose assemblies by the manufacturer stipulates that they must be tested at pressures that are at least twice the service pressure. This ensures a significant safety margin beyond operational conditions, reflecting the industry's commitment to safety and reliability. By conducting tests at double the service pressure, manufacturers can identify any potential weaknesses or failures in the hose assemblies that might not be evident under normal operating conditions.

This level of testing helps to ensure that the hoses can withstand unexpected pressure surges or other stressors in real-world applications, reducing the risk of failure during use. This rigorous testing standard is crucial for maintaining the integrity of systems that utilize compressed natural gas, as any failure could lead to serious safety hazards.

In contrast, testing at pressures equal to the service pressure would not sufficiently account for variability in operational conditions, while testing at half the service pressure would not ensure the necessary safety margins. Testing at standard atmospheric pressure conditions is also inadequate, as it does not simulate the operational pressures that the hose assemblies will encounter in actual use.