Vent Butterfly Valve

Description

The Vent Butterfly Valve is a ventilation (air) butterfly valve for low-pressure air, gas and dust-laden ducts. Its welded or cast body with flanged ends, simple disc and worm gear handwheel allow on/off and regulation of airflow in ventilation and dust-removal systems. The design prioritizes light weight, low cost and easy maintenance for large-volume, low-pressure service.

Technical Specifications:

• Pressure Class: PN0.5 – PN2.5 (0.05 – 0.25 MPa)
• Size Range: DN100 – DN2000
• Applicable Medium: Air, flue gas, dust-laden gas, coal gas
• Operating Temperature: ≤ 200°C (higher with special seal)

Main Parts and Materials:

Key Product Features:

1. Low-Pressure Air Design: Optimized for ventilation and dust systems, not liquid shut-off.
2. Airflow Regulation: Disc angle can be set for flow balancing.
3. Lightweight Construction: Steel plate body for easy handling in large sizes.
4. Worm Gear Handwheel: Smooth, self-locking manual operation; electric actuator available.
5. Heat Resistant: Suitable for hot air and flue gas up to 200°C.

Applications:

Ideal for Ventilation Systems, Dust Removal, Cement & Mining Plants, and Power Plant Air Ducts. Specifically suited for controlling large volumes of low-pressure air or gas.

Additional information