The most reliable rubber joint manufacturer

1 More than 24 years experience of manufacture of rubber expansion joint.
2 The Main Drafter of Chinese Standard (GB/T 26121-2010) flexible rubber joint.
3 Approved supplier for nuclear power industry.
4 The largest rubber expansion joint manufacturer in China(DN3600).

Introduction of double spheres rubber expansion joints: 
1. Rubber expansion joints can greatly reduce pipeline system shock and noise. And can fundamentally resolve pipe
joints displacement, axial stretch and non-concentricity.
2. By using different materials, rubber expansion joints can be made many kinds to cater for different medium and environment. 
Such as acid resistance, alkali resistance, corrosion resistance, oil resistance and heat resistance etc.
3. The material is pure rubber, sealing is very good. It is in light weight, very easy for installation . 
Our rubber expansion joints have long life performance, but must be not contact with sharp metal instruments to avoid piercing the sphere. 
4. Our rubber expansion joints can be used for lift and transportation of raw water and sewage, transportation of water supply cooling cycle water thermal power ,condensate water of metallurgy industry and chemical industry.

Features of  double spheres rubber expansion joint:
1, Versatile hand-built construction. Made in China
2, Absorbs directional movement
3, Absorbs vibration, noise and shock
4, Compensates for misalignment
5, Wide flowing arch design
6, Virtually eliminates sediment buildup
7, Economical fully molded construction
8, High vacuum rating (up to 30" Hg) can be supplied for certain sizes
9, Special grooved flange ring design, prevent rubber end pull out
10, Solid galvanized steel floating flanges speed the installation time
11, High tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out  and avoids the sharp cutting edge of solid steel rings

Application of double spheres rubber expansion joints
1.lifting and transportation of raw water and sewage;
2.transportation of water supply
3.cooling cycle water of thermal power plant
4.ater of metallurgy industry and chemical materials of chemical industries
5.cooling and dilution of oil and chemical industries and flexible connection of other industries
6.transportation all grain and powder material and gas

Packaging & Delivery
Wooden case(Out package) and plastic film and textile membrane(inside package). 
We can make change according to your request.

Material lists:

NO	NAME	MATERIAL
1	Inner rubber	IIR,CR,EPDM,NR,NBR
2	Outer rubber	IIR,CR,EPDM,NR,NBR
3	Framework layer	Polyester cord fabric
4	Reinforcing bar	Polyester cord fabric
5	Flange	Q235
6	Reinforcing ring	Steel wire rope

Technical Parameters for Double-ball Flexible Rubber Joint:

DN Diameter		FF Length (mm)	Axis displacement				Radial displacement		Deflexion displacement
			Type-I		Type-II		Type-I	Type-II	Type-I	Type-II
mm	inch		Extension	Compression	Extension	Compression
32	1?″	165	30	50			45		±7.5°
40	1?″	165	30	50			45		±7.5°
50	2″	165	30	50			45		±7.5°
65	2?″	175	30	50			45		±7.5°
80	3″	175	30	50			45		±7.5°
100	4″	225	35	50			45		±7.5°
125	5″	225	35	50			45		±7.5°
150	6″	225	35	50			45		±7.5°
200	8″	325	35	60
250	10″	325	35	60
300	12″	325	35	60
350	14″	325	35	60
400	16″	400	40	60
450	18″	400			65	70		70		±12°
500	20″	400			65	70		70		±12°
600	24″	400			70	75		75		±12°
700	28″	450			70	75		75		±12°
800	32″	450			70	75		75		±12°
900	36″	450			70	75		75		±12°
1000	40″	500			75	80		70		±12°
1200	48″	500			75	80		70		±10°
1400	56″	500			75	80		70		±10°
1600	64″	500			75	80		70		±10°
1800	72″	550			80	85		65		±10°
2000	80″	550			80	85		65		±10°
2200	80″	550			80	85		65		±10°
2400	96″	550			80	85		65		±10°
2600	104″	550			80	85		65		±10°
2800	112″	550			80	85		65		±10°
3000	120″	550			80	85		65		±10°

We really appreciate your attention. Please contact us if you are interested in our products.