VKF41.65C-MH Siemens Valve

Overview

The Siemens VKF41.65C-MH is a 2-1/2 inch flanged butterfly valve equipped with a manual handle, designed for the precise flow regulation of air and gas in combustion and HVAC systems. This wafer-type valve is engineered for mounting between counter-flanges and features a robust, metallic tight-closing design to ensure high reliability and safety. It is a critical component for industrial burner applications, often used as a control or shut-off device for gases such as natural gas, propane, and air.

Features

• Metallic tight shutoff with a low leakage rate of approximately 0.6% to 0.9% of kvs
• Manual handle kit with a locking mechanism to secure the valve in any position
• Integrated position indicator showing the disc angle
• Maintenance-free design with stainless steel disk and spindle for durability
• Beveled disc allowing for an 85 to 90 degree angle of rotation
• Bi-directional flow capability for flexible installation

Specifications

• Model: VKF41.65C-MH
• Size: 2-1/2 inch (DN65)
• Connection Type: Flanged (fits between PN6, PN10, PN16 flanges)
• Body Material: Cast iron (EN-GJL-250)
• Disk/Shaft Material: Stainless steel
• Flow Capacity (kvs): 200 m3/h
• Maximum Operating Pressure: Up to 20 psig (140 kPa) for gas applications
• Temperature Range: -10 to 120 C (14 to 248 F) depending on the medium

Applications

• Control of air, natural gas, and propane in industrial and commercial combustion plants
• Flow regulation in gas trains for burners and boiler systems
• Use as a manual flow restrictor or shut-off valve in HVAC and heating systems
• Integration into larger Siemens modular combustion control assemblies
• Suitable for both industrial gas and air control applications requiring precise throttling