Rubber Expansion Bellow Types





The rubber expansion joints can be divided into two main categories namely the moulded expansion joints and the hand built one’s. To the first category belong the EF812, EF912, EFDA, EFFF, EFTSC and EFTSCU. series which are moulded, while the second category consists of the SPOOL type joints (K-1 to K-9)  which are hand built. The construction is in general as follows: The inside rubber lining is leak-proof and made of synthetic or natural rubber, depending on the application. This applies also for the outside rubber cover, which has the prime function to protect the canvass, between the cover and the inside lining, from outside damages. Special polymers can be supplied to resist chemicals, oils, sunlight, acid fumes and ozone. The pressure supporting canvass consists of fabric and metal reinforcement, as wire or solid rings.


Rubber Types


The rubber bellows are available in Neoprene, Butyl, Nitrile, EPDM, Hypalon, Natural Rubber, Silicone and Viton.


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General Information
Operating Principle
Rubber Expansion Bellow Types
Rubber Expansion Bellow Accessories
Installation Instructions
Quality & Testing Capabilities
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