Case specification should be according to the work of filling material raw materials and the way; According to the relevant provisions of the proper installation of filling material, the packing should be placed by circle fastening, the connecting head should be 45 ℃ to 30 ℃ or; Life is too long, aging, destruction of the filling material should be removed immediately; Seat should be enrolled straight after bending, destroy, repair, destruction of severe cases should be immediately removed; Filling material shall be installed in accordance with the requirements of coil number of turns and the screw cap should be symmetrical evenly, pressing sleeve need more than 5 mm gap torque; Destroy the screw cap, bolts and other prefabricated, should be immediately repair or disassemble; Should follow the operating rules, in addition to the percussive rocker, normal kinetic energy at a constant speed operation process; Should be symmetrical tighten screw cap bolts evenly, screw cap and Industrial Valves seat clearance is too small, as far as possible to expand its clearance; The screw cap and valve seat clearance is too large, should be paid to remove.

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