VKF41.100C Siemens Valve

Overview

The Siemens VKF41.100C is a 4-inch (DN100) flanged butterfly valve designed specifically for the proportional control of gas and air flows in combustion plants. Part of the VKF41 series, this valve is engineered for integration into gas trains and serves as a critical component for modulating flow to industrial burners. It features a robust cast iron body and a beveled stainless steel disk that provides a metallically tight shutoff, ensuring high performance and reliability in HVAC and boiler systems.

Features

• Metallically tight-closing disk ensures minimal leakage (less than 0.7% of kvs)
• Suitable for use with a variety of clean gases, including natural gas, propane, and air
• Beveled disk design allows for an 85-degree angle of rotation for precise modulation
• Bi-directional flow capability allows for versatile installation in existing piping
• Maintenance-free design with a durable stainless steel shaft and disk
• Wafer-style body mounts easily between standard PN6, PN10, or PN16 flanges
• Compatible with a wide range of Siemens actuators, including the SQM and SAL series

Specifications

• Model: VKF41.100C
• Nominal Diameter: DN100 (4 inches)
• Flow Capacity (kvs): 760 m3/h
• Maximum Operating Pressure: Up to 20 psig (140 kPa) for gas applications
• Medium Temperature Range: 0 to 140 F (-18 to 60 C) for gas; up to 248 F (120 C) for water
• Material (Body): Cast iron EN-GJL-250
• Material (Disk and Shaft): Stainless steel
• Angle of Rotation: 85 degrees
• Connection Type: Flanged (fits between flanges)
• Weight: Approximately 7 lbs (3.2 kg)

Applications

• Proportional flow control for air and gas in industrial combustion systems
• Supervision and modulation of gas trains for burners using natural gas or propane
• Use in HVAC systems for controlling chilled or low-temperature hot water in closed circuits
• Integration with electronic burner controls via Siemens SQM10, SQM33, or SQM40/45 series actuators
• Suited for OEMs and industrial facilities requiring precise manual or automated gas flow regulation