VKF41.80H Siemens Valve

Overview

The Siemens VKF41.80H is a 3-inch high-temperature flanged butterfly valve specifically engineered for the precise control of hot air or flue gas recirculation (FGR). This robust valve is designed to handle extreme thermal conditions, providing reliable shut-off and modulation in industrial combustion and heating systems. Its wafer-type design allows for easy installation between standard pipe flanges, and it is built to withstand the rigorous demands of continuous high-temperature operation.

Features

• Designed to handle high-temperature gases and flue gas recirculation
• Bidirectional flow capability allows for flexible installation in various piping configurations
• Metallic tight-closing mechanism ensures reliable performance and minimal leakage
• Durable cast iron body with a stainless steel disk and shaft for enhanced longevity
• Compatible with a range of Siemens electromotoric actuators for automated control
• Optional manual handle kit available for manual flow restriction and positioning

Specifications

• Model: VKF41.80H
• Nominal Diameter: DN80 (3 inches)
• Maximum Medium Temperature: 550°F (288°C)
• Maximum Operating Pressure: 150 kPa (1.5 bar / 21.7 psi)
• Angle of Rotation: 360° (swing-through design)
• Flow Coefficient (kvs): 400 m³/h
• Body Material: Cast iron (EN-GJL-250)
• Disk and Shaft Material: Stainless steel

Applications

• Flue gas recirculation (FGR) systems in industrial boilers
• Control and modulation of hot air in combustion plant equipment
• High-temperature gas train integrations for OEMs
• Industrial heating, ventilation, and air conditioning systems requiring thermal resistance
• Suitable for use with air and other inert gases within specified temperature ranges