Inflatable Seals

These pneumatic airtight seals are extremely useful for sealing fabricated pieces of equipment where:

• the sealing gap might vary
• assembly and dis-assembly needs to be quick and simple
• hygienic procedures exist (FDA applications and regulations)

Generally working from within a specific groove size the seals can operate axially, and for both inward and outward radial movements. The most popular requirements are for FDA approved Silicone Elastomer in either Blue, White or Red iron oxide colours. Other Elastomers and Pigmentations are available for a wide variety of sealing applications.

Our pneumatic seal joining method incorporates a high pressure Shot Moulding technique , this utilizes an identical compound injected at the joint to produce a high strength bond, resulting in a clean smooth line finish. No adhesives form part of the bond. This process provides a High Integrity seal capable of performing under greater and higher pressures than most if not all other similar type of seals in the market.

A ‘Shot Moulding’ technique is also used to bond most types of the available inflation connectors to the seals as required by the customer/application. This process bonds the connector to the seal by localized injection of identical compound vulcanizing the connector to the seal. The strength of Vulcanized Connector far exceeds any mechanical fixing or adhesive bonded connector, associated with this type of seal.

Other materials are also available which include Fluoropolymers such as Viton® and Fluorosilicone, Anti-Bacterial Silver loaded Silicones and EPDM®.

All inflatable seals manufactured by Sealing Projex are independently pressure tested and supplied with a supporting ‘Test Certificate’. These tests on free standing, unsupported seals vary from 1 bar to 4 bar pressure, dependent on the profile type and/or customer specification. With the aid of purpose designed test rigs, which enclose the seal, our production techniques are tested and supported with proven case history.