VKF41.50C Siemens Valve

Overview

The Siemens VKF41.50C is a wafer-type butterfly valve designed for the precise control and throttling of air, natural gas, propane, and other clean, non-corrosive gases. Engineered for industrial and commercial burner applications, this high-performance valve is built for integration into gas trains and is designed to fit securely between counter-flanges. Its metallic tight-closing mechanism ensures a high degree of shut-off reliability, making it an essential component for safety and efficiency in combustion systems.

Features

• Designed for fitting between PN6, PN10, and PN16 counter-flanges according to ISO 7005
• Metallic tight-closing disk provides a high seal integrity with low leakage rates
• Disk and spindle are constructed from durable stainless steel for enhanced longevity
• Capable of accommodating flow in either direction for versatile installation
• Compatible with various Siemens actuators, including the SQM and SAL series, using specific mounting kits
• Maintenance-free design reduces long-term operational costs

Specifications

• Model: VKF41.50C
• Nominal Diameter: DN50 (2 inch)
• Flow Rate (kvs): 230 m3/h
• Leakage Rate: Less than 0.4% of kvs
• Angle of Rotation: 85 degrees
• Operating Pressure: -5 to 20 psig (-35 to 140 kPa)
• Temperature Range: -20 C to +60 C (-4 F to 140 F)
• Housing Material: Grey cast iron (EN-GJL-250) or ductile iron
• Weight: Approximately 1.8 kg (4.0 lbs)

Applications

• Throttling and control of natural gas, air, and propane in industrial gas trains
• Integration into gas-fired equipment and burner systems as a primary control valve
• Use in HVAC systems for boiler and chiller sequencing circuits
• Air and gas control in closed-circuit heating or ventilation systems
• OEM integration for commercial and industrial burner control applications