Rod seals factory manufacturer from dmsseals.com
Top rated hydraulic seal provider: 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. See even more details on scraper seals.
The Fluid Film – In most mechanical seals the faces are kept lubricated by maintaining a thin film of fluid between the seal faces. This film can either come from the process fluid being pumped or from an external source. The need for a fluid film between the faces presents a design challenge – allowing sufficient lubricant to flow between the seal faces without the seal leaking an unacceptable amount of process fluid, or allowing contaminants in between the faces that could damage the seal itself. This is achieved by maintaining a precise gap between the faces that is large enough to allow in a small amounts of clean lubricating liquid but small enough to prevent contaminants from entering the gap between the seal faces. This micro-gap is maintained using springs and hydraulic force to push the seal faces together, while the pressure of the liquid between the faces (the fluid film) acts to push them apart.
DMS SEALS’ s bonded seal is ideal for being applied to threaded pipe fittings and plug sealing in Metric, British and BSP systems. The seal has no special requirements for the positioning and processing techniques of the seal groove, so it is an ideal accessory for fast and automatic installation that we highly recommend. The operating temperature range is -30°C ~ 100°C, and the working pressure is less than 39.2 MPa. It is commonly used in a hydraulic oil medium.
The rod seal is the most important sealing component designed by DMS SEALS in the liquid sealing application. It can effectively prevent the liquid inside the cylinder from leaking to the outside. Moreover, if there is a leakage problem in the rod seal, the performance of the equipment will be degraded. There are even some machine and human safety issues in extreme cases. This type of seal meets the standards of GB/T 15242.1-94 and GB/T 15242.3-94. It is ideal for high and low-speed reciprocating rods and rods in high-pressure system cylinders. Moreover, it can be used in a variety of fluids and high-temperature environments. It is characterized by its high corrosion resistance and its ability to work well in a corrosive media with no oil spots. It has high stability under pressure and harsh conditions. The outstanding advantages of our seals are strong wear resistance, resistance to extrusion, low friction and no stick-slip.
Gasket sealing mechanism: The function of the gasket is caused by the blocking effect on the internal medium formed by the contact pressure of the sealing material on the joint surface and the elastic restoring force to the external tightening force. Classification and structure of gaskets: Gaskets are divided into three categories: non-metallic gaskets, non-metallic and metal combined gaskets and metal gaskets. The common materials are rubber, leather, asbestos board, cork, PTFE, tinplate, steel, aluminum, copper and stainless steel.
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 info at https://www.dmsseals.com/.
DMS Seals is a professional mechanical seals manufacturer and oil seal supplier for hydraulic seals, O-Rings, spring energized seals, oil seals, mechanical seal and so on. Hydraulic seals including step seals, glyd rings, guide strips, wiper seals, rod seals, piston seals, rotary seals, wear rings. We can provide the hydraulic seals with bronze filled PTFE, carbon filled PTFE, graphite filled PTFE, MoS2 filled PTFE, glass filled PTFE, virgin PTFE. About O-Rings, we can supply NBR, FKM, silicone, EPDM, HNBR, ACM, FFKM material.
Due to the volume and weight limitations of the system, it is impossible to install an ideal filtration and cooling system. High temperature, high pressure, and high speed cause the hydraulic oil to deteriorate easily, and the mechanical parts are also prone to erosion and stains. There are many stains and impurities in hydraulic oil, but it cannot be thoroughly filtered, which is the aspect of endogenous stains. All kinds of dust in the working environment may be very large, and it will inevitably enter the hydraulic system in multiple ways, causing oil pollution, which is an external stain. Therefore, the sealing system is required to be resistant to stains.
It is ideal for single-acting sealing of reciprocating piston rods or pistons with a wide operating pressure range of up to 20 MPa. The operating temperature range is also wide from -200°C to + 250°C. It has a diameters range from 3 mm to 1600 mm and a working speed of 5 m/s. The seal has a low coefficient of friction and the friction between the contact faces is minimal among all seal types. Moreover, the contact pressure between the mating surfaces is low. It can work without lubrication and is very wear resistant. And it has a long service life.