VKF41.125C-MH Siemens Valve

Overview

The Siemens VKF41.125C-MH is a high-performance 5-inch flanged butterfly valve equipped with a manual handle, designed for the precise regulation of gas and air flow in combustion and HVAC systems. Built for durability and ease of operation, this wafer-type valve is engineered for integration into gas trains and industrial burner systems, ensuring reliable performance in demanding environments. It features a metallically tight shutoff and a robust design that supports high flow capacities while maintaining low leakage rates.

Features

• Manual handle with a locking mechanism and integrated valve position indicator for precise manual control
• High-quality stainless steel disk and spindle for enhanced corrosion resistance and longevity
• Metallically tight-closing design provides a secure shutoff with minimal leakage
• Bidirectional flow capability allows for flexible installation in various piping configurations
• Robust grey cast iron housing suitable for mounting between counter-flanges
• Maintenance-free design reduces long-term operational costs and downtime

Specifications

• Model: VKF41.125C-MH
• Size: 5 inches (DN125)
• Connection: Flanged (fits between PN6, PN10, or PN16 flanges per ISO 7005)
• Flow Capacity (kvs): 1000 m3/h
• Leakage Rate: Less than 0.7% of kvs
• Angle of Rotation: 85 degrees (with beveled disk)
• Operating Pressure: Maximum 150 kPa (1.5 bar)
• Temperature Range: 0 to 140 F (-18 to 60 C)
• Material: Cast iron EN-GJL-250 body, stainless steel disk and shaft, Buna-N O-rings

Applications

• Precise flow regulation of air, natural gas, and propane in combustion plants
• Manual flow restriction and isolation in industrial and commercial heating systems
• Control of gas trains for industrial burners and boiler systems
• Air and flue gas regulation in HVAC and power generation facilities
• Integration into modular Siemens combustion control solutions for simplified maintenance and setup