Seals have been used since ancient times and have evolved into a wide variety of shapes and materials.
Selecting the most suitable product for a given application can be difficult. This engineering section will assist in product selection by explaining the fundamentals of design and material technology.
When choosing a sealing system, the desired result is ultimately leakage control. The design and material improvements of the accessories have made it possible not only to have combinations that provide zero leakage, but also provide extended life in a variety of applications. Apart from the seals themselves, a thorough understanding of system parameters is necessary to obtain the best results. Optimal sealing is best achieved by taking a system's approach to the package rather than considering components individually.
Rod seals are the most critical elements of any machinery with hydraulics and pneumatics that allows the machinery to operate over extended periods without attention, often in challenging environments. For this reason, much research has gone into improving such accessories with a range of high performance materials and for the myriad of applications and manufacturers of that machinery.
The rod seal is designed to ensure that pressurized fluid does not leak out of the system as the rod cycles back and forth out of the gland by dynamic pressure sealing. Rod seals which guard against external leakage, are one of the most vital components of the system. These aids are used in hydraulic cylinders for fluid compression and locking. They are external to the cylinder head and seal against the cylinder’s rod, preventing leakage of fluid from within the cylinder to the outside.
The rod seal element plays a vital role in the hydraulic system. It can prevent the fluid leakage and also can stop the outside air or dust entering into the system. These elements are the core of the hydraulic equipment. For a hydraulic device to perform better, a good rod seal is necessary, which is the guarantee of the excellent hydraulic device.
Darcoid has been providing standard and custom made solutions like rod seals for a wide range of applications and industries since a long time as an industrial global leader and has been providing sealing solutions for various applications including Aerospace and Military markets where quality is of utmost importance.
Darcoid is an ace supplier of accessories for various applications like machinary. The company is into supply of a number of sealing solutions, wear rings and scrapers, wipers specifically engineered for heavy machinary and other applications, where cylinders and valves are actuated by air. These accessories operate in dynamic applications, often at high speeds. The company offers a wide range of hydraulic and pneumatic profiles to meet the broad demands of a spectrum of industries.
These accessories are offered in a variety of compounds and lip geometries for the best possible solution for a given application. A majority of these accessories are manufactured utilizing a precision knife trim process to ensure the sealing contact with the dynamic surface yields the best possible performance. When combined with other products of Darcoid like bearings, dirt excluders and static gland seals, rod seals have proven to provide long life and leak free performance.
Product range of Darcoid also includes fabric reinforced diaphragms, O rings, V rings, quad rings, EMI shielding gaskets, PTFE, fluid power and custom molded seals, square cut O rings, lathe cut O rings and many more
Rotary Shaft Seals
The rotary shaft seal is used for excluding dirt, dust, water or other particles, while retaining lubricant in rotary shaft equipment. It was developed as a means of protecting bearings of rotating shafts.
Integral Seals from Darcoid Norcal Seal
An integral seal is named so because it effectively integrates a stamped or machined metal or molded plastic retainer with a molded in place rubber sealing element to create an extremely versatile sealing device.
Stat - O - Seals
Most fluid systems have fasteners that must be sealed. Parker’s fastener seal designs found in the Stat-O-Seals and thread seals feature an elastomeric sealing element molded in place within a metal retainer or washer.
