Quality o ring factory: At the heart of why a mechanical seal works lies the rotating and stationary seal faces. Seal faces are lapped so flat it is impossible for a liquid or gas to flow through them. This allows for a shaft to spin, while a seal is being maintained mechanically. What determines the amount of time a seal will last is selecting the right seal material combination for the application. Hard seal faces for abrasive service, Carbon Vs. Ceramic for simple water (or anti-freeze in the case of automotive applications). Carbon Vs. Silicon Carbide for most applications to reduce energy consumption and provide long life. For critical applications double mechanical seals are usually recommended. Discover even more info at spring seals.
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.
Rubber seals are a common type of basic component in sealing devices, and play a very important role in the contradiction between leakage and sealing. Using rubber seals is an important way to promote technological advancement and prevent and reduce environmental pollution. They are a class of rubber products that are widely used in sealing technology. Because rubber is a polymer material with valuable elasticity, a wide temperature range. It gives less stress in different media producing large deformation, which can provide contact pressure, compensate for leakage gap, and achieve the purpose of sealing.
Scraper seals are also known as wiper seals. The scraper sealof DMS SEALS can effectively prevent various forms of contamination that cause a hydraulic system failure. It can be mounted on the outside of the piston rod seal of the hydraulic cylinder to protect the hydraulic cylinder from dirt, dust and moisture. It can well protect the hydraulic cylinder from environmental pollution and effectively prevent damage to the hydraulic cylinder parts, causing the system to malfunction. DMS offers a wide range of wiper seals for different hydraulic systems with different characteristics, specifications and combinations.
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.
We own a number of invention patents and leading production process. The R&D teams have the ability to design and develop seals for various of complicated working condition of sealing system. We have already passed the certification of ISO 9001 and IATF 16949. We have the mature technical reserve for the solution of ultra-high temperature, ultra-high pressure, ultra-low temperature, highly corrosive and other special working condition. Read extra info at https://www.dmsseals.com/.
DMS Seals is a professional hydraulic seals, industrial mechanical seals manufacturer and oil seal supplier specializing in supplying sealing solutions and various seals & o ring. As a leading custom o ring manufacturer, DMS can support OEM and ODM and can meet customers’ requests. DMS Seals adheres to the tenet of “first-class design, top manufacturing, excellent service” and strive to be an excellent supplier of sealing system solutions. DMS Seals pays the utmost attention to quality to ensure the satisfaction of our cooperative partners.
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.
The spring seal produced by DMS SEALS is perfect for being applied to extremely high-speed, very low-speed equipment with micro piston strokes and other special operating conditions. It can be used with rotary seals and maintains good sealing performance in violent shake and vibration motion environments. At the same time, our seals are extremely adaptable to a wide range of working media. It is resistant to a wide range of chemicals except for soluble alkali metals, high-temperature fluorine and chlorine trifluoride. Therefore, it works well with liquids such as oils and water with high and low temperature.
