Spherical joint

Spherical joint also called spherical compensator, mainly rely on angular displacement to absorb or compensate pipeline one or more directions laterial displacement, the compensator should be used in pairs, single spherical compensator has no compensation ability, can be used as universal joint.

Double Flange Dismantling Joints

It is mainly used for the pipe connection with higher flexibility, the ball is installed on the ball to rotate freely around the centre of gyration so as to compensate for the thermal expansion pipes, torsion ans vibration. It has d\advantages of high compensation, small occupation, lower fluid resistence, easy to install and low costa.

Main data
Norminal Diameter Max radial size Globe Distance Torque Size of joint end dxs Total length  Weight
DN(mm) D(mm) E(mm) (KN.M) dxs(mm) L(mm) 1.0Mpa 1.6Mpa 2.5Mpa



1.0Mpa 1.6Mpa 2.5Mpa 4.0Mpa Connection Flange
Flange Flange Flange
50 180 114 0.07 0.11 0.17 0.28 59*3.5 200 23 23.8 29
65 198 152 0.14 0.23 0.36 0.58 73*4 260 31 33 39
80 225 168 0.32 0.51 0.8 1.28 89*4 292 45 46 53
100 260 178 0.54 0.86 1.34 2.15 108*4 310 66 68 82
125 300 206 1.04 1.67 2.61 4.18 133*4 350 87 91 111
150 375 254 1.52 2.43 3.8 6.08 159*4.5 440 99 101 125
200 440 236 2.15 3.45 5.39 8.63 219*5 435 137 141 176
250 540 315 4.22 6.75 10.55 16.88 273*6 584 262 271 330
300 608 275 6.34 10.15 15.86 25.38 325*6 602 360 375 457
350 685 370 8.31 13.3 20.78 33.25 377*8 670 546 569 696
400 780 420 10.83 17.32 27.06 43.3 426*8 757 645 665 822
450 825 435 15.34 24.55 38.36 61.38 480*8 822 911 956 947
500 900 336 20.81 33.3 52.03 13.25 529*8 728 1045 1111 1315
600 1055 448 26.22 41.95 65.55 104.87 630*8 900 1449 1640 1895
700 1300 710 31.78 50.84 79.44 127.1 720*8 1290 - - -
800 1450 830 38.26 61.22 95.65 153.05 820*10 1480 - - -
900 1630 950 45.2 72.32 113.05 180.8 920*110 1650 - - -
1000 1810 1100 52.74 84.38 131.84 210.95 1020*10 1810 - - -
1100 1990 1350 60.91 97.46 152.28 243.65 1120*12 2050 - - -
1200 2170 1550 69.78 111.65 174.45 279.45 1220*14 2280 - - -

It is mainly applicable for pipes with heating power of three-way displacement, large ground subsidence, strong shake and complex landform.

Feature:

  1. Large amount of compensation
  2. No closure force
  3. Small force on fixed bracket
  4. Using sealing technology to achieve long term reliable sealing
  5. Easy to use and to install
  6. All weather installation
  7. Ideal for pumped sewerage pipelines
Technical parameter of e-type spherical compensation joint

Application Range

Spherical compensator is a kind of equipment for solving thermal expansion and contraction of pipelines. It can be widely used in metallurgy, petroleum, chemical, electric power, light industry, textile, construction and national defense construction industries.

The spherical compensator is mainly suitable for pipeline connection with large ground settlement, large vibration and complex terrain, and is installed on the pipe. The sphere can be freely rotated within the angle θ of the center of rotation to compensate for the deflection of the pipeline due to foundation settlement, thermal expansion and contraction. The utility model has the advantages of large compensation amount, small space occupation, small fluid resistance, convenient installation and low comprehensive cost.

Use Occasion

Spherical compensator is suitable for use on pipelines between factories and regional long distance transportation.

High pressure pipelines with limited deformation and displacement after compression and expansion, but limited space.

Pipes requiring as low a pressure drop and turbulence as possible due to process operating conditions or economic considerations.

The inlet and outlet pipes of sensitive equipment with certain restrictions on the connection load.

Between the building (construction) and the building, due to the uneven sinking or earthquake caused by the pontoon, the location of the pipeline may cause the possibility of stress overload accident.

For pipelines with spherical compensators, the overall construction cost of the pipeline should be lower than that of other compensation methods.

Spherical compensator are available in a variety of configurations and are more flexible to use, but usually the main applications are two arrangements: one is to arrange two Spherical compensator fills on a horizontal or vertical Z-shaped pipe; the other is on a horizontal L-shaped pipe. Arrange three Spherical compensator supplements.

Features of the spherical compensator:

  1. Large compensation capacity, small occupation space, small fluid resistance and beautiful appearance (no filling nozzle).
  2. Can rotate around the axis at any angle, can also bend in any direction, the bending angle is ± 15 °, a total of 30 °.
  3. The sealing performance is good, the sealing material has large elasticity, low friction coefficient, good lubrication performance and small turning torque.
  4. Due to the large compensation capacity, up to 300 meters to arrange a set of ball compensation, so it has fewer fixed brackets, saving total investment and saving energy.
  5. Can balance the blind force.
  6. Can achieve universal multi-dimensional compensation, regardless of the pipeline horizontal or axial compensation and other arbitrary directions can meet the requirements.
  7. The price is one tenth of the import price.
  8. The ball is finished by CNC lathe and has a high surface finish.
  9. The spherical compensator has a large compensation capacity, which is 10 times that of the conventional square compensator.
  10. Spherical compensator can save investment.
  11. Spherical compensator can reduce heat loss and pressure loss and save energy.

In summary, the spherical compensator is a new type of pipeline thermal expansion compensating device with large compensation capacity, small space occupation, investment saving, energy saving, safe and reliable use, especially suitable for high temperature heat pipes. It is worthy of extensive use in superheated steam heat pipes.



Fitting specification, Standard and identification

There are different varieties of pipe fittings made of various materials and available in various shapes and sizes.



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