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Tuesday, 21 April 2015

Types of Pipe Joints

Types of Pipe Joints Points : types of pipe joints, spigot and socket joint, expansion joint, socket or a coupler joint, flanged joint, nipple joint, hydraulic pipe joint, union joint Pipes are generally joined to vessels as of which they convey the fluid. As the length of pipes available is partial, thus different lengths of pipes contain to be connected to suit some exacting installation. There are different forms of pipe joints use in apply, but mainly general of them are discuss under.
1. Spigot and Socket Joint
2. Expansion Joint
3. Socket or a Coupler Joint
4. Flanged Joint
5. Nipple Joint
6. Hydraulic Pipe Joint
7. Union Joint
1. Spigot and Socket Joint Spigot and socket joint is mainly use for pipes which are hidden in earth. A few pipe lines are laid directly as distant as feasible. One of main features of this joint is its elasticity as it adopt itself to little changes in level due to completion of earth which takes put due to weather and other conditions. In this form of joint, spigot end of one pipe fits into socket end of other pipe. The left over space among the two is filled by a jute rope and a ring of lead. While lead solidifies, it is caulked-in strongly.
2. Expansion Joint Pipes moving steam at elevated pressure are generally fixed through means of increase joint. Joint is use in steam pipes to start increase and reduction of pipe line due to adjust of temperature. In turn to allocate for change in length, steam pipes are not strictly clamp but support on rollers. Rollers can be set on wall bracket, hangers or floor stands. Expansion bends are helpful in a long pipe line. These pipe bends will coil in also direction and eagerly contain themselves to small actions of definite pipe ends to which they are attach. The copper ridged increase joint, (a), is use on short lines and is suitable for partial service. An expansion too identified as gland and stuffing box arrangement is mainly satisfactory while the pipes are well support and cannot sag.
3. Socket or a Coupler Joint The majority regular way of joining pipes is by way of a socket or a coupler. Socket is tiny part of pipe thread inside. It is screw on half way on threaded end of one pipe and extra pipe is then screw in remain partly of socket. In arrange to stop leak, jute or hemp is wound about the threads at end of every pipe. This kind of joint is generally use for pipes moving water at low pressure and where generally smallness of size is mainly necessary.
4. Flanged Joint It’s one of mainly extensively use pipe joint. Flanged joint can be prepared by flanges cast essential by pipes or loose flanges weld or screw. Two cast iron pipes by integral flanges at their ends. Flanges are attached through means of bolts. Flanges contain seen standardised for pressures upto 2 N/mm2. Flange faces are machined to make sure correct position of the pipes. Joint can be prepared leakproof with insertion a gasket of soft material, rubber or convass among the flanges. Flanges are prepared thicker than pipe walls, for strength. Pipes can be strengthening for elevated pressure duty through increase thickness of pipe for a small length as of the flange. For even high pressure and for large diameter, flanges are added strengthened with ribs or stiffners. The ribs are put among the bolt holes. For bigger size pipes, divide loose flanges screw on pipes are use instead of integral flanges.
5. Nipple Joint In this form of joint, a nipple which is a small part of pipe threaded external is screw in inside threaded end of every pipe. The difficulty of this joint is that it reduce area of flow.
6. Hydraulic Pipe Joint This type of joint has elliptical flanges and is fixed firmly through means of two bolts. The oval flanges are generally using for small pipes, upto 175 mm diameter. Flanges are commonly cast integral by pipe ends. Such joints are use to take fluid pressure unstable as of 5 to 14 N/mm2. Such a high pressure is initiate in hydraulic applications similar to riveting, pressing, lifts and so on. Hydraulic machines uses in these installations are pumps, intensifiers, accumulators etc.
7. Union Joint In classify to unfasten pipes attached through a socket, it is needed to unscrew pipe as of one end. This is at times not convenient while pipes are lengthy. The union joints give the ability of disengage pipes with minimally unscrew a coupler nut.

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