Скачать или смотреть Pressure testing CPVC, pipe's integrity and durability under various pressure conditions

The methodology for pressure testing CPVC (Chlorinated Polyvinyl Chloride) pipes involves a series of steps to ensure the pipe's integrity and durability under various pressure conditions. Here's a general outline:

1. Preparation:
Inspect the pipe and fittings for damage or defects.
Ensure all connections are properly glued and assembled.
Remove any debris, dirt, or moisture from the pipe.
2. Test Equipment:
Use a hydrostatic pressure test pump or a compressed air test kit.
Calibrate the pressure gauge and ensure accuracy.
3. Test Procedure:
Fill the pipe with water or a specified testing fluid.
Apply pressure gradually, using a pump or compressed air, to the recommended test pressure (typically 1.5 to 2 times the rated pressure).
Hold the pressure for a specified duration (usually 30 minutes to 2 hours).
Monitor the pressure gauge and pipe for leaks, cracks, or damage.
4. Acceptance Criteria:
No leaks, cracks, or damage should occur during the test.
Pressure drop should not exceed 5% of the test pressure.
5. Test Pressure:
For CPVC pipes, typical test pressures are:
1.5 MPa (217 psi) for pipes up to 50 mm (2 inches) diameter.
1.2 MPa (174 psi) for pipes 50-100 mm (2-4 inches) diameter.
1.0 MPa (145 psi) for pipes above 100 mm (4 inches) diameter.
6. Duration:
Test duration varies depending on the pipe size, material, and application.
Typically ranges from 30 minutes to 2 hours.
7. Documentation:
Record test pressure, duration, and results.
Note any leaks, damage, or anomalies.

Please consult relevant industry standards, such as ASTM F493 or ISO 1167, for specific requirements and guidelines tailored to your application. Additionally, consider factors like temperature, pipe age, and environmental conditions when conducting pressure tests.

Do you have any specific questions or would you like further clarification on any of these steps?