Established in 1974 as a partnership firm called Hydrotechnic, the company is now popularly known as hyloc. Hyloc is the oldest amongst four independently run engineering companies recognized as the Polyhydron Group. The Polyhydron group is known for their quality products and services, fair approach to business, and business ethics throughout the country and abroad.

The company manufactures high-quality tube couplings, adaptors, pipe flanges, diagnostic couplings, and allied control valves under the brand name HYLOC for more than 47 years. Apart from the standard product range, hyloc supplies a large number of custom-designed tube couplings, adaptors, and valves.

Hyloc is an authorized distributor for Rotelmann GmbH Ball Valves for India Region. The company has in-house facilities for hot and cold forging, a completely automatic electroplating plant, and well equipped hydraulic test lab. Hyloc is an active member of the BIS sectional committee PGD36 and also a P member of the ISO committee.

Why Choose Us

We Are Leader In Industrial Market

Hyloc has complete infrastructure to process tube fittings, flanges, valves at par with any international brand. Our complete infrastructure includes: 

  • Design and development
  • Use of genuine raw materials
  • Battery of CNC turning centers with advanced manufacturing technology
  • Battery of single and Multi-spindle machines for higher productivity
  • Quality checks at different levels right from raw material, in-process and the final product
  • In-house forge shop producing coupling nuts, Elbows, and tees
  • In-house fully automated Electroplating plant to ensure surface treatment quality and consistency
  • In-house Hydraulic test lab – Unique test lab developed in-house to conduct various performance tests as specified by International standards, namely leakage test, burst pressure test, vacuum test, pressure impulse, and vibration test, axial pull test, fire test, etc.


Machine Shop

CNC Turning

Multispindle Machines

Multispindle Machine

Forge Shop

Forge Shop

Hot Forging

Cold Forging

VMC Machines




Electro Plating

Hydraulic Test Lab

SFG Store

SFG Store

Our Team

Meet Our Expert Team

Dilip Chitnis

Chairman and Managing Director

Parag Chitnis

Executive Director

Swapna Chitnis

Manager Planning

Anuraj Patil

Manager Sales

Gopal Deshpande

Chief Engineer – Design and Development

Vijay Patil

Manager Forge Shop


Manager Marketing

Deepak Sulebhavi

Manager Sourcing

Vilas Patil

Manager Operation


Manager Quality

Manager HR / Admin

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