Gasket

Gasket Product Introduction
1、 Product Overview
Gaskets are important accessories for sealing connection parts in mechanical equipment. They are usually made of elastic materials (such as rubber, metal, fiber, plastic, etc.) to prevent leakage of liquid, gas or solid substances between two fastening parts. The function of the gasket is to fill the gap between two contact surfaces, withstand compression deformation and ensure the tightness between the contact surfaces. It is widely used in automobile, machinery, construction, chemical industry, petroleum, food and other industries, playing an important role in preventing leakage, improving equipment safety and extending equipment service life.
2、 Product features
Excellent sealing performance
The core function of the gasket is to provide a seal against fluid leakage. Gaskets of different materials have different sealing properties and can provide efficient sealing solutions in different operating environments (e.g. high pressure, high temperature, corrosive media, etc.).
Pressure and temperature resistance
High-quality gaskets maintain a stable seal at higher pressures and temperatures. Metallic gaskets typically have good compression resistance and are suitable for high pressure applications; Rubber gasket is suitable for normal temperature and low pressure environment, with good flexibility and elasticity.
Resistance to corrosion
Some gaskets, such as metal or composite gaskets, have strong corrosion resistance and can withstand the corrosion of strong acids, bases, solvents and other chemicals, and are suitable for chemical, petroleum, natural gas and other industries.
Elasticity and durability
Gaskets shall be capable of uniformly filling the contact surface under pressure and shall have good elasticity to adapt to the change of external pressure and vibration, so as to avoid sealing failure caused by long-term use.
Customizability (Customizability)
Gaskets can be customized according to customer requirements and service conditions, such as size, thickness, material, shape, etc., to ensure the best sealing effect under specific working conditions.
Easy to install
Gaskets are typically designed to standard sizes and can be easily placed between sealing surfaces when installed and pressed together with fasteners such as bolts for efficient sealing.
3、 Product Classification
Classification by material
Rubber gasket: The rubber gasket has good elasticity and tightness, and is applicable to general low-pressure, normal-temperature or medium-temperature environment. Common rubber materials include natural rubber, fluorine rubber, neoprene, silica gel, etc. Viton gaskets are ideal for high temperature, high pressure and chemically corrosive environments.
Metal gasket: metal gasket is usually made of stainless steel, copper, aluminum and other metal materials, with stronger resistance to high temperature, pressure and corrosion, and widely used in high pressure and high temperature environment. Common metal gaskets include flat gasket, annular gasket, corrugated gasket, etc.
Fiber gasket: made of fiber and rubber composite material, with good compression resistance, high temperature resistance and corrosion resistance. Commonly used in steam piping and low pressure systems. Due to its relatively low price, it is widely used.
Plastic gaskets: Plastic gaskets have excellent chemical stability and strong corrosion resistance, and are commonly used in the sealing requirements of food, medicine, chemical industry and other industries. Common plastic materials include PTFE (polytetrafluoroethylene), polypropylene (PP), etc.
By Shape
Circular Gasket: The most common gasket shape, suitable for most piping and equipment connections, and usually used with flanged connections.
SQUARE GASKETS: suitable for specific sealing requirements, particularly where connections are to be tightened to secure equipment.
Special Form Gaskets: Gaskets can be fabricated to various non-standard shapes, such as O-shaped gaskets, star shaped gaskets, etc., depending on specific application requirements.
Classification by application
Gas sealing gasket: mainly used in gas transmission system, which can effectively prevent gas leakage and is commonly used in chemical industry, oil and gas, electronics and other fields.
Liquid sealing gasket: used in liquid transportation and storage equipment, can effectively prevent liquid leakage, and is used in water treatment, food, medicine and other industries.
High-Temperature and High-Pressure Gaskets: Specially designed for high-temperature and high-pressure service, they are usually made of metal or composite materials to maintain stable sealing performance under extreme conditions.
4、 Product application field
Automobile industry
Gasket is widely used in automobile industry, especially in engine, exhaust system, transmission and other parts. Common applications include cylinder head gaskets, exhaust pipe gaskets, oil seals, etc. to ensure a variety of liquid and gas seals, prevent leakage, and improve engine efficiency.
mechanical equipment
In mechanical equipment, gaskets are used to seal key parts such as pumps, valves, compressors and hydraulic systems. It can effectively isolate the medium, prevent leakage, reduce equipment wear and ensure normal operation of equipment.
Chemical industry
Equipment and pipelines in the chemical industry often need to deal with high temperature, high pressure, strong corrosion and other harsh conditions. Gaskets can provide good sealing performance to avoid toxic chemical leakage and ensure operation safety. Commonly used gasket materials include PTFE, graphite, metal, etc.
Oil&Gas Sector
Oil and natural gas transmission, storage and processing equipment usually require high sealing performance. Metal gaskets, fiber gaskets and rubber gaskets are widely used in oil and gas pipelines and related equipment to ensure the safety and stability of the system.
Food&Beverage Industry
In food and beverage production, gaskets are widely used in various containers, valves, pipes and other equipment connection parts. Because the food industry has very high requirements for hygiene standards, FDA or food grade certified gaskets such as silicone gaskets, PTFE gaskets, etc. are often used.
Electronic and power industry
In the electronic and power industry, gaskets are used for electrical equipment, switches, distribution boxes and other parts to prevent current leakage or moisture penetration and ensure long-term stable operation of equipment.
5、 Selection and maintenance
Select proper gasket material
Gaskets shall be selected according to the medium type, operating temperature, pressure and chemical corrosivity. For example, silicone gaskets are suitable for the food industry, while PTFE gaskets are suitable for chemical delivery pipelines.
Correctly install gaskets
When installing gaskets, ensure that the gasket is in full contact with the connecting surface and free from dirt, oil, and other contaminants. During installation, pressing force shall be applied evenly to avoid excessive deformation of gasket and ensure sealing effect.
Regular inspection and replacement
Gasket may be aged or worn due to high temperature, pressure, corrosion and other factors during use, so its sealing effect shall be checked regularly. If the gasket is found damaged or leaking, it shall be replaced in time to ensure the safe operation of the equipment.
6、 Summary of Summary
Gaskets play an important role in many industries as key sealing elements in industrial equipment. Its excellent sealing performance, pressure and temperature resistance, corrosion resistance, etc. make it outstanding in high pressure, high temperature, chemical and other harsh environments. With the progress of technology, the materials and design of gaskets are constantly innovated. In the future, gaskets will meet the requirements of environmental protection, energy conservation and safety and meet the needs of a wider field.