Plunger valve repair
Plunger valve repair should be fully aware of the structural characteristics of various types of piston valves, sealing mechanism, design features, which helps make better plunger valve repair, the following is Jiangyin Oulei Si valve repair workshop, plunger valve repair various types of finishing features.
I. flange plunger valve repair feature straight-through
1, flow: straight-through
2, valve, valve cover for the steel or cast steel, piston, stem, isolation ring is stainless steel. For flexible graphite or PTFE seals
3, seal ring, ring isolated from the body and bonnet bolts, nuts, pad compression spring
4, outer diameter and sealed by the piston ring seal been achieved
5, the valves open and close slowly
II. Flange pressure balance valve repair feature straight-through plunger
1, flow: straight-through
2, valve, valve cover for the steel castings: valve stem, piston, ring stainless steel isolation; sealing ring, flexible graphite or PTFE filler as; copper alloy stem nut
3, seal ring, ring by isolating the connection body and bonnet bolts, nuts and spring washer compression
4, by the diameter of the plunger seal and seal ring diameter to achieve
5, the plunger is hollow, the upper and lower chamber which has holes, stem spend gland and nut connection, so that the plunger up and down the chamber pressure balanced, open and close time and effort. However, we must have the seal and stem packing
6, the valves open and close slowly
III. Threaded connection or socket weld connections feature straight-through plunger valve repair
1, flow: straight-through
2, valve, valve cover for the steel or cast steel, piston, stem, isolation ring is stainless steel. For flexible graphite or PTFE seals
3, seal ring, ring isolated from the body and bonnet bolts, nuts, pad compression spring
4, outer diameter and sealed by the piston ring seal been achieved
5, the valves open and close slowly
IV. Connected to the welding characteristics of straight-through plunger valve repair
1, flow: straight-through
2, valve, valve cover material cast steel
3, the same number of other structural features
V. Valve features maintenance-shaped plunger valve
1, flow: straight-through
2 valve, valve cover, plunger body is cast steel; stem, plunger ring of stainless steel; sealing ring, flexible graphite or PTFE filler as
3, valve body and the plunger at the seal ring with inlaid stainless steel bushing
4, seal ring with a plunger in the plunger body clamping ring
5, by the piston rings and valve bushing diameter to achieve sealing with the inner diameter
6, valve body, valve cover bolted, sealed with a gasket
7, valve stem seals on the packing and sealing, compression packing seal can be achieved
8, stem transmission with a stem nut, rotate the hand wheel can open and close valves
9, this type of structure than conventional piston valves open and close the valve plunger speed
VI. Flange double pressure balance valve seat piston valve repair feature straight-through
1, flow: straight-through dual-port
2, valve, the valve cover, under the valve cover are steel castings; stem, plunger, stainless steel cages; sealing ring, flexible graphite or PTFE filler as
3, sealing ring, piston-driven applied on the isolated ring, the valve cover bolts, nuts, spring washers in the valve body pressed
4, the plunger can be oriented in the upper and lower seal ring and comprising up and down movement, has put pressure balance hole-oriented, media-driven pressure can be set into the holes under the cavity. Double sealing surface by the plunger and valve body double seal ring seal can be achieved
5, the valve plunger seal for the double seat valves, flow through large, because the plunger short, open and close faster than larger conventional piston valves
6, sealed with the seal and stem packing, compression packing gland stem seal can be achieved
7, the stem nut on the valve cover set in business can be driven by rotating hand wheel opening and closing the valve plunger
Seven female connector angled plunger valve repair feature
1, flow: right angle
2, No. 1, see other structural features
Eight. Angled flange plunger valve repair feature
1, flow: right angle
2, No. 3, see other structural features
IX. Angled flange plunger pressure balance valve repair feature
1, flow: right angle
2, No. 4, see other structural features
Plunger valve repair for a good understanding of various features, coupled with advanced piston valve piston valve maintenance equipment and maintenance tools to improve the plunger valve repair operations. Jiangyin Oulei Si line advanced valve repair equipment, perfect quality assurance system valve repair, valve repair a variety of special tools, will be your best business plunger valve repair
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