What Is a Rubber Washer?
Rubber gaskets have oil resistance, acid and alkali resistance, cold and heat resistance, and aging resistance. They can be directly cut into various shapes of gaskets, which are widely used in medicine, electronics, chemical, antistatic, flame retardant, food and other industries.
- Chinese name
- Rubber gasket
- main products
- Silicone pad, nitrile rubber pad
- Features
- Oil, acid and alkali resistant, cold and heat resistant
- Apply to
- Medicine, electronics, chemical
- Rubber gaskets have oil resistance, acid and alkali resistance, cold and heat resistance, and aging resistance. They can be directly cut into various shapes of gaskets, which are widely used in medicine, electronics, chemical, antistatic, flame retardant, food and other industries.
Related Products and Applications of Rubber Gaskets
- Rubber gasket Rubber sheet is a kind of rubber gasket that is used to seal between two stationary surfaces of a metal flange or other connection parts. It can be made by compression molding or punched by vulcanized film. Can be widely used in a variety of machinery and equipment, as a gasket, seal, buffer and so on.
- In terms of form , commonly used rubber gasket washers include: rubber flat washers, rubber O-rings, plastic flat washers, Teflon-coated washers, asbestos rubber washers, metal flat washers, metal profiled washers, metal sheathed washers, wave washers, Winding washers, etc.
- (1) Flat rubber washer: easy to deform and effortless when pressing, but with poor pressure and temperature resistance, it is only used in places with low pressure and low temperature. Natural rubber has certain acid and alkali resistance, and the use temperature should not exceed 60 ° C. Neoprene can also withstand certain acids and alkalis, and the use temperature is 80 ° C. Nitrile rubber is oil resistant and can be used up to 80 ° C. The fluorine rubber has good corrosion resistance and The temperature performance is also stronger than ordinary rubber, and it can be used in the medium of 150 .
- (2) Rubber sealing washer: The cross-sectional shape is perfect circle, which has a certain self-tightening effect. The sealing effect is better than the flat washer and the pressing force is smaller.
- In terms of materials , the main products of rubber pads are: silicone pads, nitrile rubber pads, fluorine rubber pads, and other rubber pads. Rubber gaskets have oil resistance, acid and alkali resistance, cold and heat resistance, and aging resistance. They can be directly cut into various shapes of gaskets, which are widely used in medicine, electronics, chemical, antistatic, flame retardant, food and other industries.
- Silicone Rubber
- It has outstanding high and low temperature resistance performance, maintains good use elasticity in the temperature range of -70 ° C-+ 260 ° C, is resistant to ozone and weathering, and is suitable as a sealing gasket in thermal machinery. Non-toxic can be used to make thermal insulation, insulation products and medical rubber products. At the same time it has waterproof, flame retardant, high temperature resistance, electrical conductivity, wear resistance, oil resistance and other excellent properties, widely used in machinery, electronics, plumbing and other industries.
- Nitrile rubber
- NBR (Nitrile-Butadiene Rubber) is a polymer of butadiene and acrylonitrile copolymerized by emulsion. It is known for its excellent oil resistance, and also has good abrasion resistance, aging resistance and air tightness. Therefore, it is widely used in the rubber industry.
- fluororubber
- With high temperature resistance, can be used in the environment of -20 -+200 , resistant to strong oxidants, oil, acid and alkali. Usually used in high temperature, high vacuum and high pressure environment, also suitable for oil environment, widely used in petroleum, chemical, aviation, aerospace and other sectors.
- other
- Neoprene, [1] natural rubber, EPDM, acrylic rubber and other special rubbers. With oil, acid, alkali resistance, wear resistance, high and low temperature resistance.
Main parameters of rubber gasket
- Product name Operating temperature Common pressure
- Nitrile rubber gasket -20 ~ 110 PN <= 16MPa DN15 DN400
- Fluoro rubber gasket -20 ~ 200 PN <= 16MPa DN15 DN400
- Natural rubber gasket -50 ~ 80 PN <= 16MPa DN15 DN400
- Neoprene gasket -20 ~ 100 PN <= 16MPa DN15 DN400
- EPDM rubber gasket -57 ~ 176 Pressure <2.5MPa DN15 DN400
- Silicone rubber gasket -100 ~ 300 Pressure <3.0MPa DN15 DN400
Rubber gasket rubber gasket use standard
- Give full play to the characteristics of various gaskets. When using rubber gaskets, the following factors should be fully considered:
It has good elasticity and recovery, can adapt to pressure changes and temperature fluctuations, has appropriate flexibility, and can fit the contact surface well;
Does not pollute process media;
Does not harden at low temperatures and has a small amount of shrinkage;
Good processing performance, easy installation and compaction;
Easy to disassemble without sealing surface.
Rubber gasket rubber gasket application
- Rubber gaskets are widely used in automotive, electronics, chemical, antistatic, flame retardant, food, various mechanical equipment and other industries, and can play the role of gasket, seal, buffer and so on.
Rubber gasket manufacturing method
- Rubber gaskets are molded or cut. The molding is made by using a hydraulic forming machine and a mold. The cutting is cut by a gasket cutting machine. Compared with a mold, it saves material, but it is relatively simple. Only one type of gasket can be made. The gasket cutting machine can cut any size within the range of 1500mm, but the utilization rate of the plate is not very high.