VKP40.15 Siemens Valve

Overview

The Siemens VKP40.15 is a high-performance proportional controlling valve designed for the precise regulation of gas or air volumes in combustion plants. Part of the VKP40 series, this butterfly-style valve is engineered for integration into gas trains and is typically fitted between counter-flanges. It is specifically built to provide a linear or proportional increase in volumetric flow across its 0 to 90 degree angular rotation, ensuring stable and accurate control even at very small volumes.

Features

• Proportional flow characteristic provides a predictable increase in volumetric flow relative to the degree of rotation
• Wide modulation range of greater than 1:25 allows for high flexibility in burner output
• Robust, maintenance-free design suitable for high actuating cycle frequencies
• Designed for fitting between counter-flanges for compact integration into industrial gas trains
• Compatible with a variety of Siemens actuators including the SQN13, SQN72, SQM33, and SQM4 series
• Suitable for use with air and gases belonging to gas families I, II, and III

Specifications

• Model: VKP40.15
• Nominal Size: 1/2 inch (DN15 rotation cylinder)
• Housing Size: DN40
• Angular Rotation: 0 to 90 degrees
• Flow Capacity: Approximately 11 m3/h air-volumetric flow at 1 kPa pressure drop when fully open
• Connection Type: Requires AGF10.15 flanges (sold separately) for installation
• Operating Temperature: Designed for standard industrial combustion environments
• Material: High-grade housing with rotation cylinder and integrated coupling

Applications

• Control of gas or air volume in industrial and commercial combustion plants
• Integration into gas trains for burners requiring high turndown ratios
• Proportional control systems using Siemens LMV2 or LMV3 burner management systems
• Systems requiring small start volumes and extremely precise low-fire regulation
• High-demand burner cycles where reliable, long-term positioning accuracy is required