Mechanical Seals

Product Description

We specialize in mechanical pump seals and manufacture a wide variety of seals that are durable, long lasting and available in a variety of designs and materials. Our mechanical pump seals are cost and time saving. Precision made, we make these pump seals in combination of Carbon–Tungsten Carbide, TC-TC, Carbon–Ceramic, Carbon–Silicon Carbide, SiC–SiC etc. Our seals have been specifically designed and fabricated for various types of applications like temperature, pressure, emission etc. Our seals meet the desired reliability and emission standards for the pump application.

Common Applications

Mechanical seals are designed to prevent leakage between a rotating shaft and its housing under conditions of extreme pressure, shaft speed and temperature. Mechanical seals can be single acting or double acting. Single (acting) mechanical seals have one sealing gap. The lubrication film required by the sliding seal faces is provided by the medium to be sealed. The lubrication film required by the seal faces in double (acting) mechanical seals is provided by a higher pressure buffer medium (sealant liquid) that is compatible with the pumped product. The sealant liquid is at a higher-pressure so that any leakage across the seal faces will be the sealant liquid into the pumped product. This buffer serves to separate the product and the atmosphere. Seal design choices include pusher, metal bellows, and elastomeric bellows. A pusher mechanical seal utilizes a dynamic secondary seal or o-ring that is responsible for sealing the fluid path between the pump shaft and the inside diameter of the rotating seal face. The secondary seals move axially along a shaft or sleeve to maintain contact at the seal faces, compensating for seal face wear and for any seal wobble due to misalignment.

 

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