linear bearings

The structure characteristics of plunger valve

by:AIRWOLF     2020-05-14
The structure characteristics of a plunger valve. Threaded or socket weld connection cut-through plunger valve, flow channel 1: straight through 2, cover for cast steel or cast steel valve body, valve, plunger, valve rod, isolation ring is stainless steel. Seal for flexible graphite or ptfe 3, seal ring, isolation ring are connected by a valve body and valve cover bolts, nuts, spring cushion pressure 4, plunger diameter and seal Canon to achieve 5, the valve opening and closing speed slower. For welding connection cut-through plunger valve, flow channel 1: straight through 2, valve body, valve cover material is cast steel 3, other structural characteristics with the serial number three. Flange connection cut-through plunger valve, flow channel 1: straight through 2, for cast steel or cast steel valve body, valve cover, plunger, valve stem, isolation ring is stainless steel. Seal for flexible graphite or ptfe 3, seal ring, isolation ring are connected by a valve body and valve cover bolts, nuts, spring cushion pressure 4, plunger diameter and seal Canon to achieve 5, the valve opening and closing speed slower four. Flange connection pressure balance cut-through plunger valve, flow channel 1: straight through 2 for steel casting, valve body, valve cover: the valve stem, plunger, isolation for stainless steel ring; Seal ring, filler for flexible graphite or ptfe; Valve stem nut for copper alloy 3, seal ring, spacer ring on the valve body and valve cover the connection bolt, nut and compressed by spring washer 4, on the outside diameter of the sealing ring plunger diameter 5, plunger seal are hollow, inferior vena has a hole on the valve stem use seal set and nut connection, make the column inserting inferior vena pressure balance, when opening and closing. But the valve rod sealing and packing of up to six, the valve opening and closing speed slower five. Globe valve plunger valve 1, port: 2 straight through the valve body, valve cover, the plunger body to cast steel; The valve rod, piston pressure ring is stainless steel; Seal ring, filler for flexible graphite or ptfe 3, valve body and piston ring set with stainless steel liner with plunger seal rings and 4 pressure ring compression on the plunger body 5, by the piston ring outside diameter and inner diameter of the lining sleeve for the valve body cooperate to achieve 6 seal, valve body, valve cover bolts connection, 7, the valve rod sealing gasket sealing with packing and sealing, compression packing can seal 8, valve rod transmission with the valve rod nut, rotating the handwheel to open/close the valve gate 9, this kind of structure compared to the conventional plunger plunger valve valve opening and closing speed of six. Flange connection double valve seat pressure balance cut-through plunger valve, flow channel 1: double mouth straight through 2, valve body, valve cover, the valve cover are steel; The valve stem, plunger, isolation for stainless steel ring; Seal ring, filler for flexible graphite or ptfe 3, seal ring, spacer ring piston guide to use upper and lower valve cover, bolt, nut, spring washer pressure to the valve body 4, plunger can up and down within upper and lower sealing ring and guide sleeve, the guide sleeve is equipped with pressure balance hole, medium pressure can be made of tiny holes into the guide sleeve inferior vena. On dual plunger seal face and double seal ring of valve body is sealed 5, the valve can be realized for the valve seat sealing plunger valve, through large flow, because of the plunger is shorter, compared to the conventional plunger valve opening and closing speed is big six, valve stem seal used in sealing and packing, compression packing gland can realize the valve rod sealing 7, the valve stem nut set by rotating the handwheel on shang valve cover can drive the plunger valve open/close seven female connection right Angle type plunger valve, flow channel 1: right Angle type 2, 1 eight other structural features see the serial number. Flange connection right Angle type plunger valve, flow channel 1: right Angle type 2, 3 other structure see serial number nine. Flange connection pressure balance right Angle type plunger valve, flow channel 1: right Angle type 2, other structure see serial number 4
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