VKF41.40C-MH Siemens Valve

Overview

The Siemens VKF41.40C-MH is a 1.5-inch (DN40) flanged butterfly valve equipped with a manual handle, designed specifically for the regulation and shutoff of air and various fuel gases. This wafer-type valve is engineered for integration into gas trains and combustion plants, providing a metallically tight shutoff to ensure safety and efficiency. The manual handle kit (-MH) allows the valve to function as a manual flow restrictor, featuring a position indicator and a locking mechanism to secure the valve disc in any desired position.

Features

• Metallically tight-closing design with a low leakage rate of less than 0.7 percent
• Manual handle kit includes a position indicator and clamping pieces for secure locking
• Durable construction with a cast iron housing and stainless steel disk and shaft
• Bi-directional flow capability allows for flexible installation in various piping configurations
• Maintenance-free design ensures long-term operational reliability
• Includes four centering spacers for precise alignment between pipe flanges

Specifications

• Model: VKF40.40C-MH
• Nominal Diameter: DN40 (1.5 inches)
• Body Material: Grey cast iron EN-GJL-250
• Disk and Shaft Material: Stainless steel
• Angle of Rotation: 85 degrees
• Maximum Operating Pressure: 150 kPa (1.5 bar)
• Medium Temperature Range: -20 C to +60 C
• Flow Rate: 170 m3/h at delta p = 10 mbar (air)
• Connection: Mounts between PN6, PN10, or PN16 flanges (ISO 7005)
• Weight: Approximately 1.72 kg (3.8 lbs)

Applications

• Integration into gas trains for industrial and commercial burner systems
• Control and supervision of air, natural gas, propane, and town gas flow
• Use as a manual flow restrictor or isolation valve in HVAC and combustion plants
• Suitable for systems requiring precise manual adjustment of gas or air volumes
• Applicable in heating, ventilation, and air conditioning plants as a controlling device