TEST | REQUIREMENTS | RESULTS |
Gas Leak Test | Gn2 Nitrogen 1,000 PSI for 10 minutes | No leakage |
Hydrostatic Burst | Based on 4 x Operating Pressure held for 5 minutes | No leakage |
Hydrostatic Proof | Based on 1.5 x Operating Pressure held for 5 minutes | No leakage |
Vibration Test | 20,000,000 cycles at displacement @ operating pressure | Passed |
Impulse Test | 500,000 cycles @ 1.33 x Operating Pressure based on ISO/BS Impulse Cycle | Passed |
Impulse/Flexure and Fatigue at Low Temperature | Simultaneous impulse and bending stress, 8 times during test of 10,000 cycles each under peak pressure and rated bending each fitting was subjected to -100 deg F for one hour utilizing liquid CO2. | No leakage |
Tensile Test | Fitting was installed in tensile machine with cross head speed of 0.20 in/min and pulled until one side of pipe dismembered from the fitting/pipe joint | Exceeded Tensile Strength by a factor of 1.33 to 1.63 |
Torsion Test | At various Torsion Angles and Ft-Lbs of Torque @4500 Psig (Gn2) and 6000 Psig (Hydraulic Fluid) | No Leakage |
Heat Aging | Maintained at 400 deg F ± 5 deg F for 168 hours, Proof test @ 6000 Psig for 30 minutes | Passed |
CNG – Compressed Natural Gas | Hydraulic Oil |
Paint and Sealer Lines | Low Temperature Steam |
Condensate Piping | LPG – Liquefied Petroleum Gas |
Deluge Systems | Lubrication and Grease |
Down Well Coiled Tubing | Natural Gas |
Drains and Plumbing Vents | Waste Water |
Ethylene Glycol/Water | RAD Waste Systems |
Fuel Oil and Fuel Gas | Solvents and Water Based Paints |
Gases – Nitrogen, Air, Helium | Subsea Piping |
Heating Coil | Steam Tracer Lines |
High Pressure Water Mist/Fog – Fire Suppression Systems |
Plant Instrumentation and Utility Air |