DNB Dryvent India Private Limited

About Us

Sonar-dnb group of companies constitutes two companies, both the companies are located in kolkata, in the eastern part of India named :

• sonar airotech pvt. Limited
• dnb dryvent India pvt. Limited

in addition to plant design, manufacturing, installation & commissioning of new pm hood & air systems, we are also in a position to :

• conduct site surveys to improve plant performance.
• to take up retrofit jobs involving modernization/ expansion / rebuild of existing hood & air systems.

we have our own, research & development wing, manufacturing units, a wide network of ancillary units and skilled site fabrication & erection teams.

we have hundreds of successful installations to our credit. Our hood & air systems are tailor-made to suit any kind of requirement- starting from very simple systems for small machines to highly sophisticated systems for most modern high speed machines.