GJQ(X)-SQ-II Three Sphere Flexible Rubber Expansion Joint

Update2016/12/29 14:02:16      Click
  • Brand   Lanphan
  • Model   GJQ(X)-SQ-II
  • Description

    GJQ(X)-SQ-II Three Sphere Flexible Rubber Expansion Joint is three sphere full face type rubber join...

Product Introduction
GJQ(X)-DF-II Single Sphere Flexible Rubber Expansion Joint
Product Description

Flexbile rubber joint consists of rubber body and metal flanges or screw thread, which is used in metal pipe system for vibration isolation, reducing noise and displacement compensation. Flexible rubber joint also called rubber joint, rubber expansion joint, flexible joint, is a kind of pipeline system joint which has the performance of high elasticity, high air-sealed, media resistance and weather resistance. The rubber flexible joint consists of inner layer rubber, reinforcing layer with polyester cord fabric and outside layer rubber with compounded rubber pipeline. According to different media, it will use different rubber, including natural rubber, butadiene-styrene rubber, butyl rubber, butadiene-acrylonitrile rubber, EPDM, chloroprene rubber, silicone rubber, fluorous rubber and so on. And they have the performance of heat resistance, acid resistance, alkali resistance, anti-corrosion, wear resistance and oil resistance respectively.

GJQ(X)-SQ-II flexible rubber joint is a kind of three ball end all sealed rubber joint, flange connection. General specification GJQ(X)-SQ-II is from DN300 to DN3000mm rubber joint size, length range between 450 mm to 650 mm. Elongation displacement to 120 mm, maximum 135 mm compression displacement, maximum radial displacement is 90 mm, maximum deflection displacement plus or minus 10 degrees. Flange material is Q235, GB flange according to GB/T 9119-2010 manufacture. The optional rubber types of inner rubber layer and external rubber cover include: butyl rubber IIR, neoprene CR, EPDM , Natural rubber NR,Butyronitrile rubber NBR.

  1. Product Alias:Flexible Rubber Joint,Rubber Joint,Rubber Soft Connection,Shock Absorber,Flange Soft Connection,Flexible Rubber Joint,Rubber Pipe Joint,Compensator,etc
  2. Product Specifications:DN32mm - DN3600mm
  3. Product Pressure:0.6-2.5 MPa
  4. Level of Shock Absorption:A level, shock absorption is very high
  5. Product Certification:ISO9001-2008
  6. Scope of Application:acid, alkali, corrosion, oil, hot and cold water, compressed air, compressed natural gas, etc
  7. Product Color:black, physical color see goods display pictures
  8. Working Temperature:15-115 (ordinary) / - 30-250 (special)


DN FF Length (mm) Axis displacement Radial displacement 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 88" 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
product details product details


Flexible rubber joint has good comprehensive properties. It is mainly used in the improvement and transportation of raw water and waste water, water supply and cooling circulation water of fossil-fuel power station, condensed water of metallurgical industry, pipeline transportation of chemical substance in chemical industry, cooling and dilution of petrochemical industry and flexible connection between different length pipes of other sectors. Rubber has the strong property of wearing resistance. It is suitable for low temperature transportation of granularity, powdery and gas of all industries.


our service

Pre-Sales Service

  1. According to products using condition, technicians will offer rationalization;
  2. Provide detailed product performance specification;
  3. Provide professional quoted price;
  4. Provide 24-hour technical consulting reply.

In-Sales Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide products inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard.

After-Sales Service

  1. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  2. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing products standard component and sealing component;
  3. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know products running state in time. Assist customers to install and adjust products until customers are satisfied;
  4. If product has malfunction during operation period, well offer you satisfied answer in time. Well reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  5. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.


  1. Is the flange galvanized?
    Yes, carbon steel flange not painting anticorrosive paint must be galvanized in order to avoid rusting. Usually, we choose electronic galvanized and hot dip galvanized, and most of our customers will choose hot galvanizing.
  2. What kind of standard of your drilled flange?
    Besides Chinese national standard, we also support American standard, German standard, British standard, Japanese standard, European standard and Australia standard. If you can give us the center distance of the hole, the number and diameter, we can also produce customized flange.
  3. Does your company have spool type?
    Yes, considering that the pipe length will be longer or shorter than the expection after finishing the installation of the pipes and the cost of producing new mold is expensive, we can produce spool type according to your requirements.
  4. Can the inner layer rubber and outside layer rubber be made using different rubber?
    Yes, we can produce the rubber joint according to the environment the rubber joint is used in, and we will choose different rubber for the inner layer and outside layer.
  5. Can I only buy ball without the flange?
    Yes, and the price will be cheaper. For small diameter rubber joint, we have goods in stock and we can offer you a free hydrotest, but for large diameter rubber joint you need order.
  6. How long is your products warranty?
    12 month. From the day the customer receiving the goods, we grant a free replacement if the products have any problems during the guarantee period.
  7. Can you offer the rubber joint sample?
    For standard type of rubber joint we can offer the sample, but the customer will afford the freight. For non-standard rubber joint or more quantity, we will charge for the sample.
  8. Does the rubber joint have inspection report?
    Yes, all of our product will be conducted hydrotest and leave the factory with a qualified inspection report.
  9. Can you offer the drawing?
    Yes, we have a excellent engineer team, and they will offer your professional drawing and technical support.

customers packaging & shipping


  1. 28 years manufacturing experience.
  2. The largest size in China:DN3600MM.
  3. The longest service life, DN2600 single sphere rubber expansion joint for Tianjin Jiangbei Power Plant in 2008, it still works now.
  4. Qualified Nuclear Power Plant supplier,DN2800 single sphere rubber joint for Jiangmen Nuclear Power Plant.
  5. Competitive price, our price is not the lowest and not highest.
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