Engineering Specialities Pvt. Ltd., ESPL, was founded in 1980 by  Mr. Narinder Nath, after nearly 20 years of Engineering and Industrial background behind him.

The main activities of the firm are designing, manufacturing and supply of all types of Flow Elements, including Orifice Plate Assemblies, Pitot Tubes, Venturies, Flow Nozzles, Self Averaging Pitot Bars, Wedge type Elements etc., Instrumentation Erection Materials and Hardware, which are not usually manufactured by the large instrumentation companies, and non-standard Butterfly Valves, with or without Actuators.

Since then ESPL has supplied thousands of Flow Elements and Butterfly Valves, for all kind of applications, to all type of industries, including Steel, Power, Refineries, Cement, Paper, Fertilizer etc.

We are enlisted as approved vendors with consultants, users & main equipment suppliers like :


All Plants of SAIL Instrumentation Limited
Asea Brown Boveri Limited MECON Limited
Avant Garde Engrs.& Consultants (P) Ltd

M. N. Dastur & Co. Limited

B. H. E. L Nuclear Power Corporation
BOC India Limited


Department of Atomic Energy
RINL, Vizag Steel Plant

Development Consultants Limited


DLF Power Limited

Thermal System (Hyd) Private Limited

GAIL India Limited

TISCO, Jamshedpur

Honeywell Automation India Limited

Yokogawa India Limited

IISCO, Burnpur  



We have developed Orifice Plate Calculation Software based on the latest BS-1042 Standard and Butterfly Valves Cv calculation which are acceptable and appreciated by all the above mentioned organizations. With these software’s the total designing time is cut down to bare minimum.

We have had several of our Orifice Plate Assemblies, Flow Nozzle Assemblies, Self Averaging Pitot Bars, Pitot Tubes and Wedge type Flow Elements on-line calibrated at the Test Lab of the Indian Institute of Technology, New Delhi, with excellent results.