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The specification and selection of a bellows product for your application is a process needing input information detailed on the Enquiry Form provided on the Contacts page.
Product Types
Hydroflex manufactures three types of standard bellows, as well as a multitude of special types to meet specific applications. The standard units are as follows:-
Single-ply bellows
These units are essentially a single tube, with convolutions where the inner root diameter is the same as the original tube diameter. Single-ply units come in many different materials options and wall thickness’ to cover the full range of spring rates and travel requirements.
Multi-ply bellows
Multi-ply units can be used for higher pressure applications, and when additional flexibility is required due to increased wall thickness requirements. They are made of two tubes, one inside the other, formed together in a single operation.
Extra-flexible bellows
These types of bellows are formed with convolutions which are a smaller diameter that that of the original tube. This gives a greater working deflection, but lower spring rates and working pressures that a standard bellow of the same diameter. Spring rate is not linear with deflection as in a conventional bellows.
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