Ageing resistant diaphragm reduces pump and valve maintenance
26 May 2010
Diaphragms moulded from Gylon, a proprietary modified PTFE, are now available from Garlock in sizes from DN8 to DN50. Gylon Style 3522 has been developed specifically for valve diaphragm applications and is claimed to provide two to three times the life of conventional PTFE diaphragms.
USP VI compliant and developed to meet the needs of food and pharmaceutical processes, these diaphragms are highly flexible without permanent deformation and offer chemical resistance equivalent to PTFE. Their flexibility ensures that they will not crack through repeated operation, eliminating process retention and cross contamination.
Equally flexible to the diaphragm is its back-up which is manufactured from a long lasting silicone. The silicone back-up ensures that an even and constant pressure is applied to the diaphragm throughout its lifetime.
Resistance to high temperatures in excess of 200°C make the diaphragms particularly suitable for processes or cleaning where steam is intermittently passed through a process. The compressibility of Gylon is 25%, making it softer and easier to tighten than equivalent PTFE diaphragms.
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