Flender/Flender Gear Units/Bevel-helical gear reducer B3
process fluids diaphragm sealed with com pletely filled inert liquid, shall be provided. Material of diaphragm and wetted par ts

shall be selected considering the natu re of process fluid. 6. The sensing elements shall be properly aged and factory

tested to remove al residual stress. They shall be able to ithstand at least 1 % the full -scale pressure

without any damage or permanent deformation. 7. Actuation set point, dead band shall be externally adjustable hrough out the range

with tamper proof facilities. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT TS NO.: MEC//2UU/0/2/0 Control & Instru mentation (&) Chapter-0.0 2, MECON Limited, All Right Reserved Page 2 of 1 8. All switches shall have an accuracy of 2.0 percent _ or better of the full-scale range. All switches shall be repeatable within 0.5 percent of the scale range. 9. The switching elements shall be nap acting, shock and vibratio proof. All switches shall have two electrically independent SPDT change over contac ts. Electrical contact rating shall be 5 amps at 2 , 5 Hz or 0.2 amps at 2 dc. 1. Electrical connection for the switch devices shall be suitable for plug and socket type connection. 1. All switch devices shall be provided with inch NPT conduit co nnection / compression type cable glands. 1. All switch devices shall be furnished in NEMA - 4 / IP 5 weather proof housing of cast aluminum material in safe area. Instrument in hazardous area shall have explosion proof enclosure as per NEMA 7 / NEMA 9. 1. Process connection shall be inch NPT. Process piping connections shall include necessary union, nut, nipple, tail pipe, and isolation valve an test connection to permit servicing, testing, calib ration and removal of the instr ument device. 1. Instrument for steam & hot water service, shall be connected th rough siphon, of stainless steel o