GJQ(X)-SQ-ⅡFull Face Type There Sphere Rubber Expansion Joint
GJQ (X) - SQ - II flexible rubber expansion 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.
Product Alias: Flexible Rubber Joint, Rubber Joint, Rubber bellows, Shock Absorber, rubber coupling ,Flexible Joint, Rubber Pipe Joint, rubber compensator, etc
Product Specifications: DN32mm - DN3600mm
Product Pressure: 0.6-2.5 MPa
Level of Shock Absorption: A level, shock absorption is very high
Product Certification: ISO9001-2008
Scope of Application: acid, alkali, corrosion, oil, hot and cold water, compressed air, compressed natural gas, etc
Product Color: black, physical color see goods display pictures
Working Temperature: 15-115 ℃ (ordinary) / - 30-250 ℃ (special)
Material List
| 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 | Carbon steel or stainless steel |
Technical Parameters
| DN |
FF Length (mm) |
Axis displacement（mm） | Radial displacement(mm) | Angular 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° |