About the flange of the plunger valve: flange of the plunger valve design and manufacturing is in order to solve the flaws of the normal cut-off valve, standard globe Industrial Valves seal USES grey root packing, cannot be ruled out leakage phenomenon, the seal by the disc and body channel plane Angle or seal ( Metal seal) The sealing leakage caused by the wear between the metal, and maintenance difficulties; The structure characteristic of plunger valve is controlled by a stainless steel plunger, up and down two elastic sealing ring and a metal frame, the plunger seal and seal closely cooperate to achieve, plunger in the two sealing ring, sealing area is greater than the normal cut-off valve; Switch plunger valve, plunger to move slowly in the sealing ring, interface is almost no wear and closed, under the plunger insert seal, truncation port; Open, plunger, though out of the sealing ring, but it is still hidden in the sealing ring, keep the isolation with the outside world, without leakage. Sealing ring is science and technology products, is the key of the plunger Industrial Valves parts, it is composed of ptfe, graphite, high elastic rubber and so on, by the reciprocating motion test one million times, still can provide good sealing performance. At the same time the valve small open torque, sealing area is large, wide applicable medium, to adapt to the high temperature and reliable sealing, long service life, convenient maintenance, etc. Widely used in petroleum, chemical, electric power, pharmaceutical, food, textile, printing and dyeing, boiler, mechanical and other industries. The flange of the plunger valve structure and the directions for use: sealing ring is the heart of the flange plunger valve. Ptfe mainly contain and a high elastic rubber and graphite. Sealing ring not only on the surface of graphite, graphite and extend the entire seal parts. So throughout the service life of the sealing ring remained particularly good self lubrication performance. The application of the sealing ring by - temperature 10 ℃ to 350 ℃. Precise application can refer to this information within the pressure/temperature chart. Sealing ring applicable medium: strong inorganic acid, food, heat transfer oil, water, steam, gas, oil solvent, and many other media. Sealing ring has high strength, high wear resistance, strong resilience, size accuracy and good recovery feature, so there is a very good keep the shape of the performance and long service life. Flange plunger valve leakage treatment: if after a long time with a leakage, the Industrial Valves shall be closed, and then press the diagonal way nut and tighten the cover slightly until to eliminate leakage phenomenon. Attention! Never will nut one-time twist to the end. Update the flange of the plunger valve repair methods: when the valve cover nut have what can't eliminate the phenomenon of leakage, will repair, maintenance will need to change the sealing ring. Here 'replacement' will not leak of the plunger valve body from the line separating down, but the new seal to replace the old sealing ring. This program without special equipment or technical personnel. Every skilled workers all have no difficulty (in) replace the sealing ring, in order to more convenient installation work, we provide a simple set of tools - The lantern type, The frame, seals) Removed, specific steps are as follows: 1, to cut off the upstream fluid, make to fix the valve ( Hereinafter referred to as the valves) There is no fluid flow, open the valve ( All open) ; 2, remove the nut, spinning wheel in the direction of the closure, the valve cover out; 3, to cover the stud hole from stud, will cover orbits around the stem of a small Angle, make the cover flange bottom face the stud bolt head; 4, by rotating the handwheel in the opposite direction, let the cover on the stud, continue to turn the handwheel until plunger josephalbert on sealing ring; 5, with a lantern type extractor and remove sealing ring, the frame, with a screwdriver up under a seal; 6, with new seal to replace the old seal, in accordance with the sealing ring - The frame - On the order of the sealing ring into the valve body; Within 7, wipe seal surface and the column after the Great Wall surface, the plunger, together with the valve cover, stem, etc in place, screw the nut, will cover face pressure in the sealing ring; 8, screwing in the handwheel, the direction of the close to press the plunger into the sealing ring; 9, in accordance with the 'rules of maintenance procedures' section
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