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GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 1GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 2GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 3GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 4GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 5
  • GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 1
  • GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 2
  • GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 3
  • GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 4
  • GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 5

GJQ(X)-SF double sphere reinforced flexible rubber expansion joint

Model:-
Brand:Liwei
Origin:Made In China
Category:Industrial Supplies / Environment Protection Facilities / Sewerage
Label:reinforced joint , double sphere joint , flexible joint
Price: US $276.7 / Set
Min. Order:1 Set
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Member Information

Detail

Henan Liwei Industry Co., Ltd.

Free MemberHe Nan - China
Live Chat:Last Online:24 Jun, 2015

Product Description

 

Product Description

GJQ(X)-SF double sphere reinforced flexible rubber expansion joint

Double sphere reinforced flexible rubber expansion joint

Constructed of neoprene* and nylon (other materials are available see charts below), the spherical shape allows pressure to exert itself uniformly in all directions, thus reducing the force exerted on pipe lines and equipment. Bias-ply tire cord provides strength, a high safety factor, and low force to move. Precision molding provides a dense, uniform carcass.

 

Production progress

1. Raw material: we never use reclaimed raw rubber, rubber is imported from USA. Before used, raw material should be tested, including physical test and some chemical experiment to test the hardness and so on;

2. Rubber pretreating and ingredients;

3. Milling: first, rubber plastication, second, rubber mixing, we will add rubber compounds, like sulfurzing reagent, surfactant, softener, stabilizer, foaming agent and some special compounds, at the same time, rubber will be extruded into plates, cut, produce 45 degree angle. The plates cannot directly be used, they should be cooled about 24 hours;

4. Molding: it will cost much time;

5. Vulcanizing: the largest vulcanizing tank in Asia ø5000*15000, right time, temperature, pressure is very important;

6.Test and experiment: these tests should be done, hydraulic test, resistance to vacuum, displacement of the performance, rubber physical properties, thickness and the strength and other quality test;

7. Package: out package the free of fumigation wooden case; inside package: plastic film and textile membrane.

 

Double sphere reinforced flexible rubber expansion joint installation direction:

1. During pipe construction, the rubber expansion joint shall be kept natural, do not deform the product purposely when installing.

2. During installing flange loosing rubber expansion joint, the enhancing ring (jutted inner steel wire rope) of spherical two ends shall be completely installed inside the flange slot so as to prevent balls to break away from flanges when pipes bear pressure. During installing bolts, screw down symmetric six/four bolts and keep balls and flanges remaining in order.

3. When connecting rubber expansion joint and pipe flange, the bolt pole shall extend to the pipe flange so as to prevent from crushing or pricking the coved screw thread expanding because of pressure, all bolts shall be pressures and screwed down and word congruously. If the surrounding circumstance is bad, spring washer and flat gasket shall be added to prevent bolts from loosing.

4.If arch/high arc rubber couplings are adapted(for six-angle bolt cannot pass through flange hole),double-head bolts shall be used and try to reduce spherical screw thread jut and avoid crushing balls expanding under pressure and prevent early damage of rubber.

5. When frequently use the rubber expansion couplings or near water (oil) pump nozzles, stop block shall be added on both ends of flanges so as to reduce the impact on pump and pipe caused by the length changes of rubber joint.

6. When adapting over DN1000 rubber expansion coupling, some length short pipe shall be made on one flange end so as to help installation and reduce labor strength. After connecting rubber expansion couplings and the short pipe and other pipe, weld the short pipe and relevant pipe together.

7. In order to remove the radial deviation formed by short pipe welding, use round steel or other relevant metal to temporarily weld flanges on pipe’s two ends and make the rubber expansion joint and flange be a steel body. After welding, remove the welding again and keep the rubber joint natural as usual.

8. When welding metal and flange, remember to cover the rubber expansion couplings with shielding and prevent from burning balls.

 

Classification:
1) According to appearance: concentric with diameter rubber expansion joint, concentric reducer rubber expansion joint,eccentric reducer rubber expansion joint.
2) According to the structure: single ball rubber expansion joints, double sphere rubber joints, spheres rubber joints, elbow sphere rubber joints.

3) According to the link the form: flange rubber joints, union rubber joints.

 

 

Characteristic Feature:

 

(1)Small volume, light in weight, very good flexibility, Convenience installation and maintenance.

(2)Transverse displacement, axial displacement, angular displacement

(3)Reduce noise, shock absorption

 

Range of application:

Due to favorable integrated performance, they can be widely used in chemical industry, Construction, water supply, drainage, oil industry, light and heavy industry, refrigeration station, water heating system, fire fighting system, electric power system, etc.

 

 

Directions of use:

When rubber joint was used in high water, pipe must have fixed support or fixed bracket, or the product shouldbe installation device to prevent pulled off. The fore of fixed support or fixed bracket must be greater than the axial force.

 

Applicable medium:

According to different material, acid resistance rubber joint, alkali proof rubber couplings, oil resistance rubbercouplings, thermos table rubber couplings, low temperature resistance rubber joint, wear resistance rubber coupling can be made to suitable for various kinds of medium and environment.

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Our Services

Our advantages:

  1. The appointed enterprise by the former chemical industry ministry.
  2. The appointed enterprise by national construction ministry
  3. The appointed enterprise by general petrol chemical company
  4. Power Equipment Network Union
  5. The industry standard drafting unit of rubber joint
  6. The member of CNEA(China Nuclear Energy Association)
  7. ISO9001:2008 and ISO14001:2004 certificate by CNAS(China National Accreditation Service Conformity Assessment)
  8. The largest vulcanizing tank in Asia:5000mm*15000mm

TEST REPORT
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Company Information

 

Why us:

 

Henan Liwei Industry Co.,Ltd. is a leading manufacturer of expansion joint in China. We have:

 

(1) Strong R&D strength;

 

(2) Strict Quality Control System;

 

(3) Perfect Test System;

 

(4) Professional After-sale Service Team;

 

(5) OEM Service.

We are your qualified supplier and reliable friends!

Thanks for your attention. For more information, please feel free to contact me.

 

 

More about Henan Liwei:

 

http://www.bellows-expansionjoint.com 

 

http://www.liweipipeline.com

 

http://www.steel-bellows.com

 

 

FAQ

1.Are you manufacturer?

Yes, we have our own factory and has 30 years manufacturing experience, so we can give you the most professional and accurate price and sevices.

 

2.Can you help us to install at field?

Sorry, we don't take charge of installing at field, but we will supply Installation Guid and Notices together with the products. If you requests, you should pay salary for our workers.

 

3.Do you have warranty?

Yes, we have one year warraty from the date you received the products, so please notice us in time, or the warranty time will start from the B/L, during warranty, we will take charge of the whole cost if any quality question happened.

 

4.How long will be the quotation validity?

The quotation validity is 30 days, subject to our final confirmation.

 

 


Payment Terms:L/C,T/T,Western Union

Product Image

GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 1
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GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 2
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GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 3
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GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 4
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GJQ(X)-SF double sphere reinforced flexible rubber expansion joint 5
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Send Inquiry to this Member

Henan Liwei Industry Co., Ltd.

NO.68,Mengjin Road,Shangjie District,Zhengzhou City

Phone:
86-371-67447999
Fax:
86
Contact:
Walter Ding (Sales Manager)
Mobile:
67447999

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