Before use, what must happen to hose assemblies?

Hose assemblies used in CNG delivery must be tested at double the service pressure before use to ensure their integrity and safety. This testing is crucial because it verifies that the hoses can handle the pressures they will experience during operation without failure. Testing at double the service pressure provides a safety margin, helping to identify any weaknesses or potential failures in the hose assembly before it is put into service. This step is critical in preventing leaks and ensuring safe handling of compressed natural gas, which can be hazardous if not contained properly.

In the context of regulatory compliance and safety practices, ensuring that the hose assemblies can withstand pressures beyond what they will typically encounter is a standard precaution in the industry. It reflects a proactive approach to safety and equipment reliability, which is essential for preventing accidents and maintaining operational standards.