Rubber expansion joint can also be called flexible rubber joint, rubber soft connection, soft joint, flexible joint, flexible rubber expansion joint, etc.
It mainly composed of flanges, pressurized ring, frame, inner and outer rubber layer. The material of each parts are supported by customer's requirements. I will show more details about the product in the following contents.
Product name: | Double sphere pipe joint rubber bellow joints |
Rubber material: | EPDM NR NBR IIR ,etc |
Flange material: | Carbon steel, stainless steel,ductile iron,etc |
Flange standard: | ANSI,DIN,JIS,EN,etc |
Applicable medium : | Air, water, seawater, oil, slurry, weak acid, alkali, etc |
Temperature: | -20ºC~+115ºC |
Pressure: | 1.0~2.5Mpa |

1, The limit pull rod can prevent the rubber joint from overstretching and compressing, double protection, and prolong the service life.








Anhui Sunval International Co., Ltd. is a professional supplier of valves and piping systems. Our company focuses on iron valves, steel valves, copper alloy valves, pipes and related accessories etc. Sunval offers design, purchase, production, quality control and export as well as after service for industrial valves. Sunval has been selling to Asia, Europe, America and Middle East.
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