Pravin Rubber Co.

Bhayandar, Thane, Maharashtra

Chevron packing seals also known as V packing seals are highly adaptive sealing products of standard rubber that comprises of rings of multiple V shaped lip seals that have been stacked vertically between reinforced header and compression ring to form a complete packing assembly. They are assembled with a reinforced backing ring to assist with extrusion resistance and with a compression ring that is used to impart axial squeeze on the chevron packing thereby imposing a transverse strain and energizing the packing. One important benefit of the vee packing is that it can operate under any mechanical situations. V shaped rings can be one or more as per requirement. These V shaped intermediate rings are tapered to snap-fit the housing during installation, thus they provide a good seal even at low pressures.

• They can operate at a pressure up to 5000 psi (344.737) bars.
• The operating temperature is in the range of 30 to 150 degree Celsius. The temperature working conditions completely depend on the material used when manufacturing the vee packing.
• Reciprocating speed is up to 0.5 meter per second.

The packing set comprises an endless U-ring firmly supported by a header ring. The lips of the U-ring are slightly flared to provide an interference fit for initial sealing. When system pressure is applied, the sealing force is increased significantly by reaction within the tongue-shaped cavity of the U-ring.

Under slight axial compression, the header ring also spreads the U-ring lips slightly to improve low pressure sealing efficiency.

• Maximum operating pressure: 5000psi (344.737 bar).
• Maximum working temperature: 120C (248F).
• Maximum surface speed: 0.5m/s (98.4fpm).

Fluid Seal is a relatively soft, non-metallic ring, captured in a groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery. Their use is critical in providing a way for fluid power to be converted to linear motion.

A static fluid seal is located in a groove and sees no movement - only sealing within its confined space, acting like a gasket. To achieve this, the gasket should be under pressure. The pressure is applied by tightening of the bolts. A type of dynamic hydraulic seal called a rod seal is exposed to movement on its inner diameter along the shaft or rod of a hydraulic cylinder. A type of dynamic hydraulic seal called a piston seal is exposed to movement on its outer diameter along the tube or bore of a hydraulic cylinder.