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

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

  • BrandLanphan
  • ColorCustomized
  • OriginZhengzhou, Henan, China
  • Product SpecificationsDN32mm - DN3600mm
  • Product Pressure0.6-2.5 MPa
  • Product CertificationISO9001:2008
GJQ(X)-SQ-II Three Sphere Flexible Rubber Expansion Joint is three sphere full face type rubber joint, it’s sphere is a recombination of inner & outer glue line and enhancement layer. It has the performance of high-elasticity, high gas tightness, medium resistance and weather fastness. 
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.



  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 product’s 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.
    You could fill out the form below and leave your contact information and product requirements, we will contact you ASAP. In order to get in touch with you in time, please complete your CONTACT INFORMATION and REQUIREMENTS.
    Contact Us
    Contacts : Lanphan
    Phone : +86-371-67447999
    Email : [email protected]
    Wechat : +86-13783661974
    Address : Room801, Building B, CC Mall, Jianshe Road, Zhongyuan District, Zhengzhou, Henan, China
    SNS :
     Product Category