Mantec - EPDM Tube and Disc Diffusers
Membrane diffusers are characterised by perforations that open and close depending on air flow, whilst at the same time preventing the penetration of water into the distribution pipework; (ceramic diffusers incorporate non-return valves when water penetration is an issue). The high quality of the EPDM membrane material is created by using the latest in computer controlled manufacturing technology. The main functional difference is in the material of construction when compared to ceramic. Ceramic is a rigid structure whereas rubber is flexible. When air is introduced into the diffuser, the inflation action opens the fine pre-formed slots thus allowing the air to be dispersed as fine bubbles. When the system does not require an injection of air, the membrane unit enables the system to shut down.