VKF41.50C-MH Siemens Valve

Overview

The Siemens VKF41.50C-MH is a 2-inch flanged butterfly valve equipped with a manual handle, designed primarily for the precise throttling and flow control of air and various fuel gases. This wafer-type valve is engineered for mounting between standard pipe flanges and features a metallically tight shutoff mechanism. The “-MH” designation indicates the factory-installed manual handle kit, which allows the valve to function as a manual flow restrictor with a secure locking mechanism and integrated position indicator.

Features

• Metallically tight shutoff with leakage less than 0.7% of kvs value
• 85 degree angle of rotation for precise flow modulation
• Manual handle kit with clamping pieces to lock the valve in any desired position
• Integrated position indicator to show the exact disc orientation
• Wafer-style design compatible with PN6, PN10, and PN16 flanges
• Maintenance-free construction with stainless steel disk and spindle
• Durable cast iron body (EN-GJL-250) for industrial reliability

Specifications

• Model: VKF41.50C-MH
• Nominal Size: 2 inches (DN50)
• Flow Capacity (kvs): 80 m3/h
• Maximum Operating Pressure: 10 psi (70 kPa) for gas applications
• Medium Temperature Range: -5 F to 140 F (-20 C to 60 C)
• Permissible Media: Air, Natural Gas, Propane, and other inert gases
• Housing Material: Cast iron EN-GJL-250
• Spindle/Disk Material: Stainless steel

Applications

• Throttling and controlling the flow of gas or air in burner systems
• Integration into gas trains for industrial and commercial combustion plants
• Manual flow restriction in HVAC and boiler room piping
• Use as a controlling device in combustion plants for gases of families I, II, and III
• Suitability for both air and gas control valve applications in closed circuits