Special Bellows - HEMA Maschinen- und Apparateschutz - #1

Text version of the page

Order and request forms available at: www.hema-schutz.de Material We use a special PVC as standard material. The bellows are resistant to alkalis and acids; they are water and dust-proof. The standard colour of these bellows is black, but other colours as well as a version in transparent material are also possible. Temperature The operating temperature range is between -20°C and +80°C. For a short time a maximum operating temperature up to +120°C is possible. Special Bellows Soft PVC Bellows Soft PVC Bellows occupy a special position among the different types of bellows. ELASTIC Bellows (see Chapter ELASTIC Bellows) offer extremely flexible design options with regard to material, dimensions and shape and can nevertheless also be produced economically in very small quantities. Soft PVC Bellows on the other hand are moulded parts, i. e. a certain minimum quantity or corresponding tooling must be available to justify economic production. Correspondingly, cost reduction can be achieved with larger quantities which makes these parts particularly well suited for large series use. Tooling is already available for many configurations, therefore attractive prices can be offered even for smaller quantities. The dimensions and shapes shown in the catalogue are available as standard forms. In addition we would be pleased to assist you in the design of special types. 1 2 ID Lmax/Lmin AD 28 Special Soft PVC Bellows in standard colour black Split version Large variety of forms and colours ID Inside diameter AD Outer diameter FAZ Extension per fold FZD Compression per fold Customer specification resp. incidental by parameter Lmin Compression of bellow Lmax Extension of bellow 1 Width of sleeve 1 2 Width of sleeve 2 Legend