Diaphragm Valves - Diaphragm Materials

Common diaphragm materials and their main properties when used in diaphragm valves.

Diaphragm Valves - Diaphragm Materials
Material	Size		Temperature		Applications
Material	inches	mm	^oF	^oC	Applications
Butyl rubber	0.6 - 14	15 - 350	- 22 to 134	- 30 to 90	Acids and alkalies
Nitril rubber	0.6 - 14	15 - 350	14 to 134	-10 to 90	Oils, fats and fuels
Neoprene	0.6 - 14	15 - 350	- 4 to 134	- 20 to 90	Oils, greases, air and radioactive fluids
Natural/synthetic rubber	0.6 - 14	15 - 350	- 40 to 134	- 40 to 90	Abrasives, brewing and dilute mineral acids
White natural rubber	0.6 - 5	15 - 125	- 31 to 134	- 35 to 90	Foods and pharmaceuticals
White butyl	0.6 - 6	15 - 150	- 22 to 212	- 30 to 100	Natural color, food, plastics and pharmaceuticals
Viton	0.6 - 14	15 - 350	41 to 284	5 to 140	Hydrocarbon acids, sulphture and chlorine applications
Hypalon	0.6 - 14	15 - 350	32 to 134	0 to 90	Acid and ozone resistant
Butyl rubber	0.6 - 14	15 - 350	- 4 to 248	- 20 to 120	Hot water and intermittent steam services, sugar refining