Leak-Proof Engineering (ISO 9001:2015):

Manufacturer of Mechanical Seals and Sealing Systems

Leak-Proof Engineering is the first in 1973 to manufacture mechanical seals in India,  pioneer in the field of engineered Mechanical Seals, is one of the largest indigenous seal manufacturer in India.  Today, with state of art manufacturing facility, the company is catering to Chemical Process, Petrochemical, Fertilizer, Water, Refinery, Oil & Gas, Steel, Edible Oil, Food Processing and other industries.

We are the first to manufacture API 682 seals in India. At Leak-Proof we believe in quality and class in engineering excellence rather than in volumes. For more information about the company and products, please visit our website:


Leak-Proof Pumps (ISO 9001:2015):

Manufacturer of Non-Metallic & Metallic Pumps

Leak-Proof Pumps established in the year 1989 is a leading manufacturer of Non-Metallic and Metallic Centrifugal pumps in India. The product range includes solid injection moulded Polypropylene (PP) pumps, polymer-lined pumps with lining materials: FEP, PFA, PVDF etc. Our lined pumps are specialized to work in aggressive applications, for highly corrosive and high temperature media. For more information about the company and products, please visit our website:

Leak-Proof Cast (ISO 9001:2015):

Manufacturer of Casting Products (Casing, Impeller, Back Plate, Fan and many more…)

Leak- Proof Cast an ISO 9001:2015 is a leading manufacturer of precision Investment Castings. Ferrous and Non-ferrous castings conforming to ASTM, ASME, SAE, DIN, MIL, JIS, BS and other international standards specification are being manufactured in our plant. We specialize in alloy castings like Duplex SS, Super Duplex SS, Alloy 20, Hast-C, Hast-B etc. We have expertise to handle castings involving complex shapes with casting weights ranging from 2 gms to 65 kg and linear dimension up to 450 mm.