Selected according to the required specifications ① valve wrench, a screwdriver , crowbar , processed bars, the top wire and other tools.
② prepare appropriate yarn , detergents, according to the valve specifications ready valve seal pads , fillers, lubricants.
( 2 ) Procedure
① operate theResilient Seated Gate Valve to the fully open position
② truncated after split gate control valves, vent pipe remaining media.
③ with the wrench to remove the resilient gate valve and the pipe connection flange bolts with the appropriate parts of the sling hitch valve with a suitable lifting device which gate .
④ disassemble the flange , inspection, cleaning valve chamber , gate, stem head , the flange gasket .
⑤ have broken the need to replace the flange gasket , the gasket before installing spread a layer of butter on both sides .
⑥ After cleaning , the stem set into the gate, the gate to the guide groove and valve guide ribs aligned , into the body , turn the handwheel to move closer to the flange so that the two symptomatic , mount bolts, tighten the diagonal solid nuts.
⑦ commissioning is completed, press the corresponding test procedures valve pressure test .
⑧ pick up tools , cleaning on-site .
( 3 ) Technical requirements
① disassembly , non-collision gate and seat sealing surface, and note the direction of the mounting surface of the gate , you can split out well before the tag.
② All parts should be thoroughly cleaned .
③ should be ensured that the various parts loaded by the status quo , and adjust to a reasonable position .