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.

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

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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.