Rubber bellows (also known as expansion joints) are used to protect moving mechanical parts from dust and humidity. The concertinaed sides allow the rubber bellow to expand and contract whilst maintaining a permanent seal.
rubber bellows with ribs and rubber bellows without ribs.
Materials Used in Rubber Bellows:
Depending upon the end use requirements, rubber bellows are manufactured using various synthetic polymers like:
• SBR
• Neoprene
• HNBR
• Ethylene Propylene Diene Monomer (EPM, EPDM), etc .
| Material | EPDM(Ethylene propylene Rubber) |
| Advantage | 1.Excellent heat resistance
2.Excellent ozone properties
3.Excellent aging property
4.Excellent stability
5.Excellent resistance to polar solvents, such as alcohol, ketone, ester and other phosphate ester hydraulic oil |
| Disadvantage | |
| Temperature | -54℃~150℃ |
| Application | Mainly used in automobile, aviation, printing, textile and machinery manufacturing industry, due to the development of NBR modified varieties, expanded the application prospect of nitrile rubber, summed up the main play: manufacturing of spare Shanshan box, fuel tubing, oil cloth, oil seal, oil pipe, oil resistant rubber parts with contact with Shanshan products, etc.. |
About Us
We have been certified by 2002 - edition ISO / TS16949 from October 2003 , we also got KTW , DVGW , WRAS, and NSF certifications for compound E7001Z59 in 2008 . We have an extensive selection of materials available to meet ASTM , JIS , DIN , NSF , and other specifications . All of our products are backed by our ISO / TS16949 registered systems . Splendid meets TS16949 standards . Supporting documentation , PPAP control plans and FMEA are available upon request . We take quality very seriously ; and that's our guarantee .
NSF : NSF is specialized in standard setting, product testing and certification services in the fields of public health, safety and environmental protection, and is an authoritative body in the field of public health and safety
KTW : The supplier is required to comply with DVGW (German Gas and Water Association) Regulation W 270 "Propagation of microorganisms on Non-metallic materials". This standard mainly protects drinking water from contamination with biological impurities. All drinking water systems and excipients exported to Europe must be KTW certified. Therefore, if Chinese drinking water systems and excipients are to be exported to European countries, they must pass KTW certification. KTW has been authorized by the World Health Organization (WHO) for the certification of safe drinking water.
WRAS : WRAS(Water Regulations Advisory Scheme) certification refers to the Water Regulation Advisory Scheme. WRAS is the certification of the safety of drinking Water in the UK.
UL : Founded in 1894, UL has become one of the world's leading testing and certification organizations with a complete set of management systems, standard development and product certification procedures.
SGS:SGS certification refers to the service that SGS performs compliance certification on targets according to standards, regulations, customer requirements and other conditions. To carry out relevant certification, we must pass inspection, testing, authentication, certification and other means (SGS certification itself is not a certification, but refers to the certification service of SGS)
