Rod seals factory 2024

O rings provider in China: Types of Mechanical Seals – Several types of mechanical seals are available. Some of the popular ones include: Balanced and unbalanced seals; Pusher and non-pusher seals Cartridge seals. A mechanical seal consists of rotary and stationary faces running against each other. These faces apply a closing force against each other using springs and the pressure generated from the process fluid. This way, a seal is formed to prevent the fluid from leaking between the rotating shaft and the pump housing. Mechanical seals can be selected based on the type of pump application. Choosing the wrong seal can affect pump performance and lead to damage and costly repairs. An unbalanced mechanical seal is preferred if the pump needs to operate at a lower pressure. However, high pressure pumping applications require balanced mechanical seals. Balanced seals also perform better in high temperature operating conditions. Cartridge seals require less maintenance but are more expensive, hence used for limited applications. Discover additional information at o ring manufacturers.

The Primary Seal – While two of the sealing points in a seal design are simple static seals, the seal between the rotating and stationary members needs a little more consideration. This primary seal is the basis of all seal design and is essential to its effectiveness. The primary seal is essentially a spring loaded vertical bearing – consisting of two extremely flat faces, one fixed, one rotating, running against each other. The seal faces are pushed together using a combination of hydraulic force from the sealed fluid and spring force from the seal design. In this way a seal is formed to prevent process leaking between the rotating (shaft) and stationary areas of the pump. The surfaces of the seal faces are super-lapped to a high degree of flatness; typically 2-3 Helium light-bands (0.00003” / 0.0008mm). If the seal faces rotated against each other without some form of lubrication they would wear and quickly fail due to face friction and heat generation. For this reason some form of lubrication is required between the rotary and stationary seal face; this is known as the fluid film.

The gasket made by DMS SEALS is uniquely mechanical and thermally stable and it has excellent oxidation resistance. Compared with other thermoplastics, it can be applied to components such as valves and bushings, with higher wear resistance, higher mechanical properties and thermal fatigue resistance. At the same time, it has excellent oil resistance (alkane oil), heat resistance, water resistance, aging resistance, air tightness and excellent adhesion. It is commonly used in media such as water, oil, and natural gas.

Our piston seals are designed to provide excellent leak control. We guarantee that it can perfectly meet the user’s requirements for low friction, compactness, precise configuration and simple installation. It is designed for fluid power applications. It is made of compound materials with high performance, which guarantees excellent wear resistance and excellent extrusion resistance for the seal. It is designed to be suitable for almost all fluid media and is highly resistant to oxidation and corrosion. It has excellent dynamic and static sealing performance and can even work under dusty industrial environments. Moreover, it has strong adaptability to various working conditions and can adapt to a fast, high-pressure working environment. At the same time, it has unparalleled performance in extreme temperature environments.

The selection principle of the gasket: according to the working pressure, working temperature, the corrosiveness of the sealing medium and the form of the sealing surface. Temperature influence: In normal temperature and low pressure, use non-metallic soft honey gasket; in medium pressure and high temperature, choose metal and non-metal combination gasket or metal gasket; when temperature and pressure fluctuate greatly, choose good elasticity or self-tightening type Gaskets; in low temperature, corrosive media or vacuum conditions, gaskets with special properties should be considered.

DMS SEALS is a technology enterprise which specialized in the production of seals, the development of seals material and the solution of the sealing of special working condition. We own 120 staffs which including 70 middle and senior technicians. Our factory covers more than 10000 square meters which including 8000 square meters for the workshop. Our production equipment and test equipment are on leading level in the same industry. We are the one of the biggest enterprise who specialized in manufacturing and developing seals in China. We have long time cooperation and communication with many universities and research institutions at home and board. Discover extra information at dmsseals.com.

DMS Custom Rubber Rings, O Ring Company & factory covers an area of more than 10,000 square meters and the factory area is 8,000 square meters. Our production equipment and test equipment are at the leading level in the industry. We are one of the largest companies in China specializing in the production and development of seals. We have long-term communication and cooperation with many universities and research institutions at home and abroad.

However, hydraulic transmission also has disadvantages compared with mechanical transmission: It is easy to leak and not friendly to the environment. High manufacturing precision is required. Low efficiency. The transmission ratio is not fixed. Due to the special working environment of construction machinery, its hydraulic system has the following characteristics: The working hours are irregular, and sometimes work continuously for a long time. The working environment is outdoors, the working temperature difference is large, and the working environment is dusty. The machine itself walks. Due to the limitation of volume and weight, the hydraulic oil tank is generally relatively small. Due to the volume and weight, the working pressure of the hydraulic system is high, usually above 20MPa, and the highest is about 40Mpa.

The rotary seal from DMS SEALS is a dynamic sealing component that is installed between the rotating shaft and the stationary parts to seal the lubricating oil and prevent external dust and debris from entering the inside of the device. When selecting the material, we fully consider the working medium, working temperature and the adaptability of the lip when the shaft rotates at high speed. It has a remarkable sealing performance and can maintain a great sealing effect for a long time.