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Connection of the valve
by：AIRWOLF
2021-01-15
The how connection between valve and pipeline or equipment, the problem can not be ignored, because the valve run, run, drip, leak phenomenon, the vast majority of happening here.
Below to introduce the connection mode of the valve.
connection mode is mainly divided into several of the valve.
1. Flange connection, is to put the two pipes, fittings or equipment, fixed on a flange, a first then add flange gasket between the two flanges, through the bolt will be two flange taut combining the way of a detachable connection. According to the joint surface shape can be divided into the smooth type, concave and convex flange connection type, mortise type, trapezoid groove, lens, o-ring and so on several kinds of connection form.
2. Connected to the clamp: are the two head bolts directly to the valve and pipe clamp wear together the connection form of
3. On both ends of the welding connection: the body according to the requirements of butt welding processing into butt welding groove, and pipe welding groove, fixed by welding on the pipe.
4. Threaded connection is a widely used detachable fixed connection, has a simple structure, reliable connection, convenient installation, etc. This kind of connection mode is often used in the small valve. Can be divided into direct and indirect seal gas seal method.
5. Card sets of connection, connection and sealing principle of it is that when the screw nut, card sets of pressure, the blade is biting into the tube outer wall and card sets of male cone and cone closed and joint under pressure, and thus can be reliably prevent leakage.
6. Clamp connections: this is a fast connection methods, it only need two bolts, often apply to remove the low pressure valve.
7. In the tight connection: it is to use the medium pressure for the tight connection. With medium heat sealing ring with the cone, side at an Angle, within the medium pressure to the cone, and passed to the sealing ring, on the cone Angle, two component, a parallel to the center line of the body to the outside, another pressure to the valve body wall. This component is the force behind. The more the greater the medium pressure, since the tight force is big. So this kind of connection form, suitable for high pressure valves.
valve connection form also many, for example, some do not have to dismantle the small valve, with the pipe welding; Some non-metallic valves, USES the connection socket type, and so on. Valve users according to the specific situation to choose connection mode of the valve.
connection mode is mainly divided into several of the valve.
1. Flange connection, is to put the two pipes, fittings or equipment, fixed on a flange, a first then add flange gasket between the two flanges, through the bolt will be two flange taut combining the way of a detachable connection. According to the joint surface shape can be divided into the smooth type, concave and convex flange connection type, mortise type, trapezoid groove, lens, o-ring and so on several kinds of connection form.
2. Connected to the clamp: are the two head bolts directly to the valve and pipe clamp wear together the connection form of
3. On both ends of the welding connection: the body according to the requirements of butt welding processing into butt welding groove, and pipe welding groove, fixed by welding on the pipe.
4. Threaded connection is a widely used detachable fixed connection, has a simple structure, reliable connection, convenient installation, etc. This kind of connection mode is often used in the small valve. Can be divided into direct and indirect seal gas seal method.
5. Card sets of connection, connection and sealing principle of it is that when the screw nut, card sets of pressure, the blade is biting into the tube outer wall and card sets of male cone and cone closed and joint under pressure, and thus can be reliably prevent leakage.
6. Clamp connections: this is a fast connection methods, it only need two bolts, often apply to remove the low pressure valve.
7. In the tight connection: it is to use the medium pressure for the tight connection. With medium heat sealing ring with the cone, side at an Angle, within the medium pressure to the cone, and passed to the sealing ring, on the cone Angle, two component, a parallel to the center line of the body to the outside, another pressure to the valve body wall. This component is the force behind. The more the greater the medium pressure, since the tight force is big. So this kind of connection form, suitable for high pressure valves.
valve connection form also many, for example, some do not have to dismantle the small valve, with the pipe welding; Some non-metallic valves, USES the connection socket type, and so on. Valve users according to the specific situation to choose connection mode of the valve.
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