Vacuum valve several common forms of connection

1, flange connection This is the valve used in the most forms of connection. According to the shape of the junction can be divided into the following categories: 1) smooth: for the valve is not high pressure. Processing more convenient 2) Bump: high pressure, can be used in the hard washer 3) Mortise groove: available plastic deformation larger washers, used in a more extensive corrosive media, the sealing effect is better. 4) trapezoidal groove: with oval ring for gaskets, used for working pressure ≥ 64 kg / cm2 valve, or high temperature valve. 5) Lens type: Gasket is a lens shape, made of metal. For working pressure ≥ 100 kg / cm high pressure valve, or high temperature valve. 6) O-ring: This is a newer form of flange connection, which is developed with the advent of various rubber o-rings. It is more reliable in sealing effect than conventional flat washers. 2, threaded connection This is a simple method of connection, commonly used in small valves. There are two cases: 1) direct seal: the internal and external threads directly from the sealing effect. In order to ensure that the joints do not leak, often with lead oil, linen and PTFE raw material filled with tape; which polytetrafluoroethylene raw material tape, the use of a wide range of day; this material is very good corrosion resistance, sealing effect pole Good, easy to use and store, when removed, it can be completely removed because it is a layer of non-sticky film, superior than lead oil, linen is much better. 2) Indirect seal: Thread tightening force, passed to the gasket between the two planes, so that the gasket sealing effect. 3, the card sleeve connection card sleeve connection, developed in our country in recent years, its connection and sealing principle is that when tightening the nut, the card sleeve under pressure to make its edge bite into the outer wall of the tube, sleeve outer cone And is in close contact with the conical surface of the fitting body under pressure, thereby reliably preventing leakage. The advantages of this form of connection are: 1) small size, light weight, simple structure, easy disassembly; 2) strong connection, wide range of use, high pressure resistant (1000kg / cm2), high temperature Shock and vibration; 3) can choose a variety of materials, suitable for anti-corrosion; 4) machining accuracy is not high; 5) to facilitate high-altitude installation. At present, the form of sleeve connection has been adopted in some small-caliber valve products in China. 4, the clamp connection This is a fast connection method, which only two bolts, for the often disassembled low-pressure valve. 5, within the tight connection from the various forms of connection, are the use of external force to offset the media pressure, to achieve sealed. The following describes the use of media pressure self-tight connection. Its sealing ring is installed at the inner cone, with the media facing the side of an angle, the media pressure transmitted to the inner cone, and passed to the ring, at a certain angle of the cone, resulting in two components, one with Valve Body center line parallel to the outside, the other pressure to the valve body wall. Behind this force is self-tightening. The larger the media pressure, the greater the self-tightening force. So this form of connection, suitable for high-pressure valve. It is connected to the flange, to save a lot of material and manpower, but also need some pre-tightening force, so that when the valve pressure is not high, the use of reliable. The use of self-tight sealing principle of the valve, usually high-pressure valve. There are many forms of valve connection, for example, some do not have to remove the small valve, with the pipe welding together; some non-metallic valves, the socket connection, and so on. Valve users should be based on the situation with the specific treatment.

Key Specifications/Special Features
Materials: aluminum, alloy steel, brass, cast iron and steel
Lost wax casting
Surface treatments: sand painting, electrophoresis and zinc plating
Heat treatments: tempered or annealed and induction hardened
Machining: CNC turning, milling, drilling and boring
Weight: 0.2 to 60kg

Packing: customized

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About the commodity:
1).25-year experiences
2).Certification:ISO9001:2000
3).Material:brass
4).Process:polishing,nickel plating,chrome plating,etc
5).Weight range:0.2-60kg
6).Min tolerance:0.05mm
7).Standard:Nonstandard JIS,DIN,ASTM,BS,SAE

Mainly Supply:
We supply all kinds of metal products,The line of our products include constraction parts, auto parts, railway parts, marine parts etc. 
4.Main export market:
•Eastern Europe
•Western Europe
•North America
•Mid East/Africa
•Central/South America
•Asia
•Australia

Competitive advantages:
1).Guarantee/Warranty
2).Product Features
3).Product performance
4).Prompt Delivery
5).Quality Approvals
6).Service
7).Small Orders Accepted

Steel Forging Ring

Precision Forging Ring,Machining Parts,Steel Forging Ring

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