O rings provider in China: Mechanical seals are engineered for most pumps, mixer and agitator applications in maintenance. In many cases the designs have been proven to be workhorses over years of use. In others seals must be designed for evolving industrial demands. The basic rotating face mechanical seal design is adaptable to serve a wide range of sealing applications including compressors. Standard mechanical seals can suit most requirements to temperatures of 500 degrees F and shaft speeds to 3600 RPM. The selection of secondary seal type often determines the temperature and chemical capabilities of the seal. The combination of materials used in the rotating and stationary faces define the abrasive resistance, and chemical resistance. Seal face combinations will also determine the amount of energy consumed by the pump, mixer, agitator or compressor. Seal faces can be balanced to permit higher pressure sealing. Balanced seals can seal pressures above 200 psi, or used in a multiple stages for higher pressures or especially severe fluid services. Special mechanical seals can be furnished to meet the most demanding of industrial applications considering pressure, temperature, speed or fluid. Read more details on rod seals.
Before examining how mechanical seals function it is important to understand other methods of forming this seal. One such method still widely used is Gland Packing. Gland packing is a braided, rope like material that is packed around the shaft – physically stuffing the gap between the shaft and the pump housing. Gland packing is still commonly used in many applications, however increasingly users are adopting mechanical seals for the following reasons; The friction of the shaft rotating wears away at the packing over time, which leads to increased leakage until the packing is adjusted or re-packed. The friction of the shaft also means that packing also needs to be flushed with large volumes of water in order to keep it cool. Packing needs to press against the shaft in order to reduce leakage – this means that the pump needs more drive power to turn the shaft, wasting energy. Because packing needs to contact the shaft it will eventually wear a groove into it, which can be costly to repair or replace.
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.
Since the scraper seal is made of the special material, PTFE, it has an impurity immersion function. Therefore, when combined with the piston rod seal and the metal bushing, it can prevent damage to the piston rod and prevent the accumulation of oil pressure. It has a diameter range of 3-1600mm and a temperature range of -30°C + 200°C. The wiper scraper seal can operate at speeds of up to 5 m/s. It has high wear resistance, tear resistance, low-temperature resistance and good strength. Our wiper seals can be used in combination with piston seals and anti-wear rings to prevent oil in the cylinder from being mixed with foreign matter, which causes damage to the working seal. It is especially suitable for piston rods with a large diameter. Moreover, it has a wide range of applications, such as agricultural machinery, injection moulding machines, forklifts, cranes and so on.
Destroy the leak: The working conditions of the sealing part are relatively bad, the thermal deformation is large, it is often subjected to vibration, impact, improper installation, excessive tightening force, repeated use, compression deformation, internal stress concentration, damage beyond the fatigue strength, material aging, deterioration, etc. will cause damage to leaks. This kind of leakage has the greatest impact and great harm, so it is necessary to strengthen prevention.
The guide belt is a belt-shaped member that guides the moving parts. Its main function is to guide. In order to realize the function of guidance, it must support the guided member, and guide and correct its motion trajectory. In order to realize the guiding function well, it also requires isolation, shock absorption and noise reduction of the guiding parts. Guide belts are mainly used in oil cylinders and cylinders. Due to their excellent performance, they are also widely used in other motion mechanisms. Find additional info 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.
Good sealing performance: Because the system works outdoors, there is no leakage oil recovery system, and the working medium will directly pollute the environment after leakage, so external leakage requirements are strict. At the same time, for the requirements of hydraulic oil heating control, pressure maintaining or maintaining position, the internal leakage requirements are also very strict. High pressure: The working pressure of the hydraulic system is high, usually above 20MPa, and the highest is about 40Mpa, which is higher than the general industrial hydraulic system pressure, so the sealing pressure resistance requirements are high.
It can be used as a guide ring for the piston rod to support and guide the piston rod. It has excellent vibration damping performance and is simple and safe to install. It is made of metal and plastic materials. It can prevent work stagnation and violent vibration. The embossed structure facilitates the formation of lubricating micro-pits and improves lubrication. At the same time, the seal prevents the intrusion of tiny foreign objects and protects the sealing system.