Bevel-helical speed reducers B4 ions see Chapter Not in combination with motor B4-DH-9B

Flender/Flender Gear Units/Bevel-helical speed reducers B4

ts. Pumps, compressors and other votary equipments shall not be subjected to field test pressures. Lines which are directly open to atmosphere such as vents, drains, safety valves, discharge need not be tested, but all joints shall be visually inspected wherever necessary such lines shall be tested by continuous flow of flui to eliminate the possibility of blockage. However, such lines if provided with block valve shall be pressure tested upto the first block valve. Seats of all vales shall not be subjected to pressure in excess of the maximum cold welding pressure of the valve. Test pressure applied to vales shall not be grater than the manufacturer is recommendation nor less than that required by the applicable code. Where desirable set pressure is less than test pressure, test shall be made through an open valve. Instruments in the system to be tested, shall be excluded fro the test by isolation or removal, unless approved otherwise by the Engineer-in-charge. Restrictions which interfere with filling, venting and drawing such as orifice plates etc. shall not be installed unless testing is complete. Control valves shall not be included in the test system. Where by-passes are provided test shall be performed through the by-pass end/or necessary spool shall be used in place of the control valve. Pressure gauges which are part of the finished system, but ca nnot withstand test pressure shall not be installed until the system has been teste . Where piping systems to be tested are directly connected at the battery limits to piping for which the responsibility tests with other agencies, the piping to be tested shall be isolated from such piping by physical disconnection such as valves or blinds. 5.2 General Requirement/Test preparation for Testing Test shall be carried out with permanent gaskets installed un less specified otherwise or instructed by the Engineer-in- charge. 1 of 1 STANDARD TECHNICAL SPECIFICATION MECON LI