Before commissioning a new system or after major modifications, a proper pressure test is crucial. Safety First: Always follow a written procedure and use protective barriers. 1. Preparation: Isolate the test section with blinds or valves. Install calibrated pressure gauges and a relief valve set to 110% of test pressure. 2. Filling: For hydrostatic tests, fill the system completely with water, venting all air. 3. Pressurization: Gradually increase pressure to 1.5 times the Maximum Allowable Working Pressure (MAWP) as per ASME standards. Hold for a minimum of 10 minutes. 4. Inspection: Check every K&G coupling connection, weld, and joint for leaks, distortion, or weeping. A visual inspection is key. 5. Documentation: Record test pressure, hold time, and inspector’s findings. K&G’s robust couplings are designed to withstand these tests, verifying the integrity of your entire installation.
