SAE AS 1339F:2003 pdf – Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, 3000 psi, 400 °F, Lightweight, Hydraulic and Pneumatic

SAE AS 1339F:2003 pdf – Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, 3000 psi, 400 °F, Lightweight, Hydraulic and Pneumatic.
3.5.2 Hose Assembly: The hose, complete with reinforcing wires and assembled with end fittings, shall meet the following performance requirements:
35.2.1 Proof Pressure: The hose assembly shall withstand the proof pressure listed in Table 2 without malfunction or leakage, The test method is specified in 4.6.3.
3.5.2.2 Elongation and Contraction: The hose assembly shall not change in length by more than ±2% in
10 inches of hose length when subjected to the operating pressure in Table 2 for a minimum of 5 mm. The test method is specified in 4,6.4.
3.5.2.3 Volumetric Expansion: The volumetric expansion of the hose assemblies shall not exceed the limits specified in Table 2 The test method is specified in 465.
3.5.2.4 Leakage: The hose assembly shall not leak (no external wetting) when subjected to two pressure cycles of 70% of minimum room temperature burst pressure. The test method is specified In 46.6.
3.5.2.5 Thermal Shock: The hose assemblies shall not leak nor show any evidence of malfunction when subjected to the Table 2 proof and high temperature burst pressure, after being thermally shocked by rapidly increasing hose temperature from -65 to 400 F. The test method is specified in 4.6.7.
3.5.2.6 Impulse: The hose assemblies shall show no evidence of leakage from hose or fitting prior to completion of 250,000 pressure impulse cycles. The test method is specified In 4.6.8.
3.5.2.7 Assembly Flexibility: The hose assembly shall not leak nor show any evidence of failure or malfunction when subjected to the Table 2 proof pressure after 400,000 flexure cycles. The test method is specified in 4.6.9.
3.5.2.8 Stress Degradation (Air Leakage): The air leakage rate from the hose and two end fittings (not including “B nuts) when held at the Table 2 operating pressure after completion of the stress degradation test shall not exceed 2.0 cm3rinlmin. The test method is specified in 4.6.10.
3.5.2.9 Pneumatic Surge: There shall be no evidence of inner tube collapse, sponging or shedding of PTFE particles from the Inner tube after 16 cycles of rapid reduction of pneumatic pressure from the Table 2 operating pressure to zero psi. The test method is specified in 4.6.11.
3.5.2.10 Pneumatic Effusion: The effusion rate for any hose size shall not exceed 8.0 cm3lft of hose length. The test method Is specified in 4.6.12.
3.5.2.11 Repetitive Assembly Torque: The flared and flareless fittings shall withstand the repetitive assembly torque values specified in ARP9O8, and beam seal fittings per AS85241, without failure or leakage. There shall be no leakage, galling. or other malfunction of the fitting nut and interface connection during the specified pressure test. The test method is specified in 4.6.13.