PDF File:  Dampers for GT application

Diverter Dampers are employed in Gas Turbine Power Projects. These dampers are used to divert exhaust gas flow from the gas turbine either to HRSG or to Bypass stack side. The flow can be diverted either partially or fully. The dampers are provided with seals which are designed for 100% leak proof by providing seal air arrangements. These Dampers are operated by Electrical actuators, Hydraulic actuators, Pneumatic cylinders or manually with Gear Box. Dampers can be designed upto  650 Deg C and pressure upto 700mmWC.

Guillotine Dampers are provided for Isolation of flow between HRSG unit and diverter damper. This type of Damper is useful for frequent opening and closing operations requiring robust structure and nearly no maintenance. These dampers are operated manually or electrically.

PDF File:  Inlet System Reference list

Inlet ducting system consists of Expansion Bellows, Ducts, Silencer, Elbow, Transition and support structures.Silencer, Elbow and Transition Ducts are lined inside with mineral wool and S.S. perforated Sheets. The Silencer is designed to a noise level of 85 dB (A) at a distance of 1 M.From 1997 onwards, Indira Industries exported Intake systems to USA, UK, Argentina, Europe, Brazil, Qatar, Oman, Thailand and Saudi Arabia through M/s. GE Energy Products, France.For the past few years, Indira Industries is one of the sourcing partners of GE Energy Products, France for Gas Turbine Intake systems.

Project: GAIL, Gandhar

Project: Elliot, Iraq

PDF File:  Exhaust System Reference list

The Exhaust system consists of Expansion Bellows, Ducts, Silencers, Transition and Bypass Stack. All ducts are made of Carbon Steel plates with adequate stiffeners. Internal insulation is provided by mineral wool and ceramic blanket covered with Stainless Steel cladding sheets. The whole system rests on support structures. The silencer is designed to a noise level of 85 dB (A) at 1m distance or to the customers special requirements.

Indira Industries has introduced the Exhaust System for the first time in India with Technical Know-how from its European principal M/s.G+H SCHALLSCHUTZ, Germany for the Project 2xFr.5 BPCL, Mumbai in 1988. So far Indira Industries has executed around 80 sets of Exhaust Systems for GE Fr.1 to GE Fr.9FA, SIEMENS V94.2 Machines.

Indira Industries has supplied Exhaust system for GE FR.1 to GE FR. 9E through M/s. Bharat Heavy Electricals Limited for various projects in India and Abroad.

This company successfully completed the Revamping and Modification of Exhaust System for GE Fr.5 Gas Turbine on turnkey basis at M/s.Oil and Natural Gas Corporation Limited, Uran in India. The project was successfully completed within a record period of 8 months and the Erection & Commissioning was completed within 39 days instead of 45 days.

PDF File:  HRSG Reference list

HRSG Casing including Boiler Inlet Ducting, Support structures, Platform & Walkways, Ladders etc., are made of Carbon Steel Plates. Internal insulation will be done with Mineral Wool and Ceramic wool covered with Stainless steel Cladding Sheet to maintain the skin temperature of the casing.