VKF41.40C Siemens Valve

Overview

The Siemens VKF41.40C is a flanged butterfly valve specifically engineered for the precise control and shut-off of air and various gases, including natural gas and propane. Designed for integration into gas trains within combustion plants, this 1.5 inch (DN40) valve features a wafer-type design meant for fitting between counter-flanges. It is a critical component for OEMs and industrial HVAC systems, providing a metallically tight shut-off to ensure safety and efficiency in burner and boiler operations.

Features

• Metallically tight-closing disk ensures minimal leakage in the fully closed position
• Constructed with a durable grey cast iron body and stainless steel disk and spindle for long-term reliability
• Maintenance-free design reduces operational costs and downtime
• Bi-directional flow capability allows for versatile installation options
• Compatible with a range of Siemens electromotoric actuators, such as the SQM or SAL series, using specific mounting kits
• Integrated end stop for the 90 degree angle of rotation

Specifications

• Model: VKF41.40C
• Nominal Diameter: DN40 (1.5 inches)
• Nominal Pressure: PN 6, PN 10, PN 16 (ISO 7005)
• Maximum Operating Pressure: 150 kPa (1.5 bar)
• Flow Rate (kvs): 50 m3/h (at 1 bar differential pressure)
• Medium Temperature Range: -15 C to +60 C
• Angle of Rotation: 90 degrees
• Material: Cast iron EN-GJL-250 (Body), Stainless Steel (Disk/Spindle), NBR (Spindle Seal)

Applications

• Used as a control or shut-off valve in gas trains for industrial and commercial burners
• Throttling and regulation of air, natural gas, propane, and other family I-III gases
• Integration into heating, ventilation, and air conditioning systems
• Suitable for use in boiler and chiller sequencing circuits
• Ideal for combustion plants requiring reliable fuel-to-air ratio control when paired with precise actuators