In the early days IHP would fabricate penstock pipes at fabrication shops set up near the site of the respective hydroelectric  project.

However in the year 1958 when the Company secured a prestigious contract for fabrication, supply and erection of steel liners for Head-race and penstock tunnels of underground Koyna Hydro-electric project, not far from Pune, it was decided to set up a very modern and well equipped penstock fabrication plant at Hadapsar, in technical collaboration with world famous Swiss Companies namely    M/s Giovanola Freres SA & Zehokke SA of Zurich and M/s Chicago Bridge & Iron Co. Ltd. of USA.

The factory is equipped with sophisticated machinery and equipment required for the fabrication and erection of penstocks and penstock specials like expansion joints, Wye pieces, bulk heads and other products like LPG Storage Tank, Boiler Shells, Cement Kilns etc.

PROGRESS

A Penstock is a high pressure steel pipeline that carries water from the storage reservoir to the turbines and is a vital element of hydro-electric projects. The design, fabrication and erection demand a high degree of skill. Until the late thirties, penstock and even technicians had to be brought from abroad. In 1937, however the company decided to take up the challenge of manufacturing penstock in India and offered its services to the Madras Government for the prestigious Papanasam Hydro project. This order was secured against heavy odds and executed successfully to the satisfaction of the authorities. The successful completion of the Papanasam Hydro project led to further orders from erstwhile Madras and Mysore Governments to fabricate and supply penstocks for Moya and Mahatma Gandhi Hydro Projects. Since then the company has established a long track record for designing, fabrication and erection of several penstock projects all over India and neighboring countries. A little over a hundred and thirty thousand tones of penstock have been supplied and installed by the company to various hydro-electric projects generating about 12,000 Megawatts of power per day.

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