Rubber Diaphragm

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Rubber Diaphragm

The rubber diaphragm is a versatile seal used in a wide range of applications to handle various fluids, air, and vacuum sealing. With custom-design available, it can be engineered for specific pressure, mechanical requirements and fluid interaction. The tunable characteristics for unique application promise the optimization of the final assembly performance and cost.

Fabric reinforced molded rubber diaphragms are widely used in applications including high-accuracy positioning, fluid metering and a broad range of control functions in which reliability and long service life with minimum maintenance are critical. Especially in the applications where a long piston stroke is needed and blow-by leakage cannot be tolerated. In places where dynamic and break-away friction would adversely affect the speed, it achieves high accuracy and repeatability to promise the high performance. We design our products with great effort. But the disadvantages come with advantages inevitably.

Advantages
Virtually no friction, including dynamic and break-away friction
Fast response to small changes in pressure ensures accurate positioning
High wear resistance ensures low maintenance cost
No blow-by leakage
No lubrication needed
Zero spring rate

Disadvantages
Generally higher costs than interference seals
Longer installation time, in some instances

Our company stocks over 6000pcs standard molds for the molded rubber parts. Popular types include rubber gasket, rubber O ring, rubber sealing, rubber washer, rubber bushing, etc. These molded rubber parts, such as oil seal, valve stem seal, bushing, bumper, and so on, are used in automotive industry, and applied to diesel engines, etc.

Our molded rubber parts can be used in other industry, for example, gasket, back-up rings, cup seals, wiper seal, v ring, and square ring are used for hydraulic industry. Components, diaphragms valves, and fluid sealing, as well as vibration and shock isolators, are especially used for compressors.

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