Pneumatic Operated Triple Offset Ventilation Butterfly Valve
The Pneumatic Operated Triple Offset Ventilation Butterfly Valve is a non-tight shut-off valve specifically engineered for large-diameter air and gas handling in high-temperature ventilation and environmental control systems. Its specialized construction ensures reliability, efficiency, and light weight, making it ideal for low-pressure applications.
Design & Performance Highlights
- Construction: Designed and manufactured using a novel structure featuring a centerline disc (or single offset) and a short structure welded steel plate body. This results in a compact, lightweight, and easily installed valve.
- Triple Offset Distinction: While generally operating as a resilient or high-performance valve, the description suggests a design optimized for the severe service of ventilation. Note: The provided technical text describes a centerline/short structure design, which is typical of basic ventilation valves, prioritizing high flow over tight shut-off.
- Optimized Flow Dynamics: Features low flow resistance and a large flow capacity, which is essential for efficient movement of large volumes of gas.
- Thermal Reliability: The design effectively avoids the impact of high-temperature expansion and ensures easy operation even under thermal cycling.
- Simplified Internal Structure: Contains no internal linkage or bolts, contributing to high operational reliability and a long service life.
- Cost-Effective & Reliable: Provides a safe, reliable, and economically feasible solution for ventilation control.
- Installation Flexibility: Due to its lightweight and compact nature, it allows for installation in various orientations.
Technical Specifications
| Parameter | Specification |
| Valve Type | Ventilation Butterfly Valve (Non-Tight Shut-Off) |
| Nominal Diameter (DN) | DN100 to DN2200mm (Other sizes available upon request) |
| Nominal Pressure | 0.1-0.6Mpa (Low Pressure) |
| Body Material | Carbon Steel (C), Stainless Steel 304 (P), Stainless Steel 316 (R) |
| Sealing Material | Retaining Ring (W) – (Non-Sealed / Metal-Sealed for general isolation) |
| Media Temperature | W 3 :-20~ 250℃ 、W4:-29~425℃、W5:-29~650℃ |
| Connection Type | Wafer (Between Flanges), Flanged |
| Actuator Action | Double-Acting, Single-Acting Normally Closed, Single-Acting Normally Open |
Applications
This valve is widely used for connecting, opening/closing, or regulating the flow of dust-laden cold or hot air/gas in pipelines where the working pressure is 0.1Mpa and media temperature is ≤300℃ (Standard operating condition):
- Construction Materials: Cement plants, gypsum production.
- Chemical Industry
- Metallurgy & Mining
- Glass Manufacturing
- Power Stations (Electric Power): Flue gas and ventilation systems.
- Environmental Engineering: General air and gas ducts.
Need a robust, high-flow solution for hot gas ventilation? Contact us for specialized selection and design options tailored to your temperature and pressure requirements.
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