Silicone Rubber Diaphragm is non-toxic and provides high as well as low temperature resistance. Silicone Rubber Diaphragm is a protecting mechanical part widely used in instrument, machinery, automobile, electrical appliances, etc., for the purpose of sealing water, liquid, air, etc. Our Silicone Rubber Diaphragm has good electrical insulation and good ozone resistance. Silicon Diaphragm made from high quality food graded silicon rubber ,which is use to control flow of heat water in coffee wending machine.