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Head Code: Round
Shape: Equal
Connection: Flange
Brand Name: Liwei
Model Number: GJQ(X)-SQ-II
Place of Origin: China (Mainland)
Type: Bushing
Technics: Forged
Material: Carbon Steel
ISO9001: ISO14001

Specifications

Henan Liwei Industry Co., Ltd.   
                      Three-ball Flexble Rubber Joint

1.Our products have the following performance:

LIWEI GJQ (X) -SQ-II flexible rubber joints is a three-sphere end face sealed rubber joints with flange connection,which is made up of the composite rubber ball. The diameter conventional specifications of GJQ (X) -SQ-II rubber joint is from DN300 to DN3000.And the ranging in length is between 450mm to 650mm. The maximum elongation displacement is 120mm, maximum compressive displacement is135mm, maximum radial displacement is 90mm, and maximum deflection displacement is within plus or minus 10 degrees. Flange material is Q235.The national standard flange is manufactured in accordance with GB / T 9119-2010. The optional inner layer and an outer layer of rubber categories include: Butyl rubber IIR, neoprene CR, EPDM rubber EPDM, natural rubber, NR, NBR rubber NBR.

Good select materials, advanced equipment, skillful workmanship, rigorous quality control standards, attractive design and durability. They are well-known for excellent quality, most competitive price, and lower cost and prompt delivery.
2.Application Range

Equipped with the excellent comprehensive performances of flexible rubber joint, LIWEI Rubber Flexbile Joints can be used for lift and transportation of raw water and sewage, transportation of water supply, cooling cycle water of thermal power plant, condensate water of metallurgy industry and chemical materials of chemical industries, cooling and dilution of oil and chemical industries and flexible connection of other industries. LIWEI Rubber Flexbile Joints is also suitable to transport all grain and powder material and gas for its high abrasive resistance.
In addition, special notifications are hereby conducted for design units and clients so as to ensure the project quality. Please note to install anti-break stop device, if LIWEI Rubber Flexbile Joints are designed to install close to pump exit nozzle and pipes' corner. If your pipes need to be buried, please use our patent-buried protective devices. In a word, remark requirement for use, and we will provide satisfactory service to you.


3.Characteristic:

1)This product could primarily reduce the vibration and the noise of the piping system, completely solve the different piping problems as displace of joint, axial flex and etc.

2)According to different material requirement, product could be made as acid proof, corrosion proof to suit different medium and environments.

3)The materials are good sealing, light weighting, easy to fix and maintain, also has long-working expecting. But please keep far away from sharp metal in order to avoid breaking of the rubber body.

4)For flanges of other standards or non-standards. It is necessary to be agreed upon separately. Please specify standard of furnish diagram and relative parameter. We will manufacture accordingly. Rubber material may be selected according t your requirement.

5) Anti-corrosion: EPDM and NBR rubber can bear high temperature and can anti-corrosion.

6) Double sphere flange end rubber joint: The rubber body has two bridges. It can bear more pressure and the length is long than single sphere rubber joint.

7) The size can made as customer's drawing, we can make mould for special type.

8) They are cost effective, the total cost is low because of rubber is cheap and it have long use life.

4.Advantage of our rubber joint


A. Ozone and chemical resistance
B. High temperature resistance
C. Excellent weather resistance
D. Anti-aging, anti-radiation, good flexibility, good elasticity
E. Excellent resistance of acids, aliphatic hydrocarbonsenan Liwei Industry Co., Ltd.

5.Why choose us


1)24 years manufacturing experience
2)ISO9001, ISO14001
3)Import rubber
4) China National Standards Drafting Unit of Rubber Joint 
5)Qualified Joint Supplier in Nuclear Power Plant   




 Delivery time:

Within 30 days after receipt of the deposit, or as your request

 Packaging details:

Unfumigation wooden case (out package) and plastic film and textile membrane(inside package). We can make change as your request.


Notes: If other satandard requirement or special flange need particularly customer made , please provide written drawing , standard , data , we can make customer-made for you .
  

Physical and Mechanical Properties Form
No Item Index Test value
Inner rubber Outer rubber
1 ≥Tensile strength(MPa) 12 13 13.6
2 ≥Break strength (%) 450 500 564
3 ≤Break permanent deformation (%) 25 30 22
4 ≤Brittleness temperature -30 -30 -40
5 ≥Viscosity(KN/m) 2.0 2.0 5.6
6 Aging hot air   (100D×48h) Tensile strength change (%) +25~-25 +25~-25 20
Tensile rate change (%) +10~-30 +10~-30 5
7 ≥Acid resistant10%H2SO4×168h 0.7 0.7 0.85
8 ≥Alkali proof10%NaOH1×68h 0.7 0.7 0.85

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

Technical Parameters for Three-ball Flexible Rubber Joint
DN FF Length
(mm)
Axis displacement Radial displacement Deflexion displacement
mm inch Extension Compression
300 12″ 450 75 90 70 ±12°
350 14″ 450 75 90 70 ±12°
400 16″ 450 75 90 70 ±12°
450 18″ 550 90 110 70 ±12°
500 20″ 550 90 110 75 ±12°
600 24″ 550 90 110 75 ±12°
700 28″ 550 90 110 75 ±12°
800 32″ 550 90 110 75 ±12°
900 36″ 550 90 110 75 ±12°
1000 40″ 550 105 125 85 ±12°
1200 48″ 550 105 125 85 ±10°
1400 56″ 600 105 125 85 ±10°
1600 64″ 600 105 125 85 ±10°
1800 72″ 600 105 125 85 ±10°
2000 80″ 600 120 135 90 ±10°
2200 80″ 650 120 135 90 ±10°
2400 96″ 650 120 135 90 ±10°
2600 104″ 650 120 135 90 ±10°
2800 112″ 650 120 135 90 ±10°
3000 120″ 650 120 135 90 ±10°