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 Vako Seals - Essential for all kinds of heavy duty machinery 

Elastomeric sealsVako Seals offers hydraulic and pneumatic seals, reciprocating and rotary shaft seals allied moulded components, 'O' rings, etc, which can be used in all the heavy duty machinery industries. Vako Seals is renowned as the leading manufacturer of a wide range of elastomeric seals, sealing elements, and rubber products in the country. The products of Vaco Seals are extensively used by the engineers at different stages like fluid power, design, production and plant in the auto industry, machinery, steel plants, hydraulic and pneumatic cylinder manufacturing, chemical plants and refineries, defence establishments etc. Vaco Seals has adhered to the highest standards of quality and consistency in the manufacture of its products in the past three decades. It is no wonder that Vako has emerged as the major source for Original .Equipment .Manufacturers (OEM) in India.

Vako Seals offers perfluoroelastomer (FFKM), which is commonly known as Kalrez . This unique material can endure the harsh pressures of any environment, and is available in the form of moulded `O-Rings as per the customer specification. FFKM has unbeatable resistance against concentrated acids, alkalis, steam, organic alcohols, ketones and esters. It has a wide service temperature, which ranges from 25 C to 300 C. FFKM is also immune to sudden changes in the service environments and lasts much longer than conventional elastomers including FPM (Viton ).

Quality ControlVako Seals offers polymers like acrylonitrile butadiene rubber (ACN) which is commonly refereed as Nitrile or Buna-N which is a copolymer of Butadiene and Acryonitrile. Their differentiation is based on the percentage of bound Acryonitrile (ACN) content in the polymer. The low ACN polymers have low temperature flexibility, compression set resistance and good elastic properties and they also offer moderate resistance to oils and fuels. As the ACN content increases, resistance to mineral oils, fuels and greases also tends to increase, but the properties such as low temperature flexibility, compression set resistance and elasticity are deteriorated. Medium ACN polymers exhibit good balance of all the above properties. Normal service temperatures of these polymers ranges from 25 C to 120 C.

Research and DevelopmentVako Seals also offers polymers like polychloroperene rubber, Ethylene propylene diene rubber, ethylene acrylate rubber, silicon rubbers, fluorosilicone, fluorocarbon rubber, tetrafluoroethylene propylene, chloro sulphonated polyethylene, ethylene oxide - epichlorohydrin rubber, carboxylated nitrate rubber, hydrogenated nitrile rubber, butyl rubber, chloro butyl rubber, bromo butyl rubber, styrene butadiene rubber, polyurethane, thermoplastic polyurethanes, polytetra fluoro ehtylene, polyoxymethylene, nylon, etc.

Vako Seals has highly efficient engineering and development divisions, CAD design, in-house compound development and testing of all physical and mechanical properties. The products of Vako Seals are moulded by compression and the transfer and injection moulding is done with the help of automatic lathe trimming machines and cryogenic methods. All the products are manufactured under strict quality control procedures as per ISO, IS, BS, DIN, SAE, JIS, GOST or any other proprietary specification provided by customer. Endurance tests are also conducted to ensure compliance with the requirements of the customers.

In-house laboratoriesMahesh Velu, the technical director of Vako Seals, said, “We have in-house laboratories for checking the properties of all the compounds. The moulded finished goods are subjected to quality control test, which depends on the sampling procedures and the online inspection of the moulded materials. We also a provide the services of our qualified engineers for on-the-site inspection to our customers.”


Vako Seals,
PO Box No 9063, # 3/4,
K R D N Trust Estate, Off Aarey Road,
Goregaon (East), Mumbai - 400 063.
Phone: 874 6260 / 874 1933 / 874 7991 / 875 4021
Fax: 875 5418
E - mail:

By: Wasim Siddiqui


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