Unenclosed Guillotine Isolator
| DESCRIPTION | MATERIAL USED |
|---|---|
| SIZE RANGE | Upto duct areas of 100 square meters* |
| PRESSURE RATING | Upto 2000 mm WC* |
| TEMPERATURE RANGE | Upto 300 °C |
* Higher Sizes / Pressure available on request
Introduction
Unenclosed Guillotine Isolator
Fouress Engineering is one of the leading designers and manufacturers of flue gas shut-off and modulating dampers. With over 50 years of accumulated expertise, Fouress has developed innovative solutions that have earned strong customer confidence and global recognition.
Fouress dampers are successfully operating in power plants, FGD plants, combined cycle power plants, waste-to-power plants, cement and steel plants, and various other industrial installations worldwide.
Fouress offers Guillotine Dampers with metallic sealing systems incorporated either on the frame or on the blade. Three distinct design options are available to suit both negative and positive pressure applications:
- Glandular Guillotine Isolator
- Unenclosed Guillotine Isolator
- Enclosed Guillotine Isolator
Unenclosed Guillotine Isolator – Features
- Metallic sealing system incorporated in the frame ensures 100% leak tightness with purge air. Available for duct sizes up to 100 m² cross-sectional area.
- Suitable for square, rectangular, or circular cross-section ducts.
- Designed to withstand flue gas temperatures up to 300°C and pressures up to 2000 mm Water Column.
- Can be installed in horizontal, vertical, or inclined ducts. Gas entry can be from the top, bottom, or at an inclined angle.
- Enclosed design option available for flue gas temperatures above 300°C or when atmospheric leakage cannot be tolerated.
- Offered in Simplex or Duplex designs based on required sealing efficiency. Simplex design provides 99.95% gas tightness across the cross-sectional area, while Duplex design ensures 100% gas tightness with purge air.
- Operation options include Electric and Manual. Pneumatic and Hydraulic operation can be provided on request.
- Entire operating system is located outside the duct, preventing exposure to flue gases.
- Critical components such as actuators, gearboxes, drive screws/rack & pinion, and drive shafts are externally accessible for inspection and servicing at all times.
Design Specifications
Unenclosed Guillotine Isolator
| Parameter | Description | Details |
|---|---|---|
| Size Range | Up to duct areas of 100 square meters* | |
| Pressure Rating | Up to 2000 mm WC* | |
| Temperature Range | Up to 300°C | |
| Material of Construction | Frame | Carbon Steel |
| Blade | Carbon Steel | |
| Seal | SS 316 / Inconel-625 / Hastelloy-C (On Request) | |
| Design Governing Standard & Testing | Fouress Standard / AMCA | |
| Seal Type | Simplex / Duplex – Leaf / Loop & V Type Flexible Metallic Seals | |
| Mode of Operation | Manual / Electric (Pneumatic / Hydraulic on Request) | |
| No. of Drives | Single / Double | |
| Installation Arrangement | Horizontal, Vertical or Inclined Ducts. Flue Gas Flow from Bottom to Top or Top to Bottom |