VKF41.100H Siemens Valve

Overview

The Siemens VKF41.100H is a high-temperature flanged butterfly valve specifically engineered for the proportional control of hot air or flue gas recirculation (FGR) in industrial combustion systems. Designed as a wafer-type valve to be mounted between flanges, it provides a robust solution for managing high-heat mediums where precise flow regulation is required. Unlike standard versions, the “H” series is built with specialized materials and a 360-degree angle of rotation to withstand extreme thermal conditions.

Features

• High-temperature construction capable of handling gas temperatures up to 550 degrees Fahrenheit
• Wafer-type design for easy installation between PN6, PN10, or PN16 counter-flanges
• Metallic tight-closing disk and spindle made from durable stainless steel
• 360-degree angle of rotation allowing for versatile flow control and integration
• Maintenance-free design ensuring long-term operational reliability in demanding environments
• Compatible with Siemens SQM series actuators for automated, high-precision modulation

Specifications

• Model: VKF41.100H
• Nominal Diameter: DN100 (4 inches)
• Maximum Medium Temperature: 550 F (288 C)
• Body Material: Grey cast iron EN-GJL-250
• Disk and Shaft Material: Stainless steel
• Seal and Bearing Material: PTFE
• Angular Rotation: 360 degrees
• Mounting Style: Flanged (fits between ISO 7005 flanges)
• Compatibility: Designed for use with SQM33, SQM40, SQM45, or SQM50 actuators (requires specific mounting kits)

Applications

• Flue gas recirculation (FGR) systems in industrial boilers
• Control of hot air flow in combustion plant processes
• Throttling of air or clean gases in high-temperature HVAC and boiler sequencing circuits
• Proportional flow control for large-scale commercial and industrial burner systems