VKP40.32 Siemens Valve

Overview

The Siemens VKP40.32 is a high-performance proportional controlling valve designed for the precise regulation of gas or air volumes in industrial combustion systems. Engineered for demanding environments, this butterfly-style valve provides a proportional increase in volumetric flow across a 90-degree angular rotation. It is specifically designed to handle small start volumes and wide modulation ranges, ensuring stable and efficient burner operation. The VKP40.32 is typically integrated into gas trains and is intended for use with Siemens actuators to facilitate accurate gas-air ratio control.

Features

• Proportional flow characteristics with a wide modulation range exceeding 25:1
• Rigid and robust design engineered for precise shaft alignment and minimal actuator wear
• Maintenance-free construction suitable for long-term industrial use
• Versatile mounting options with support for both Rp and NPT threaded AGF10 flanges
• Mechanical stop options available at -5 degrees (fully closed) or 100 degrees (fully open)
• Compatible with a variety of Siemens actuators, including the SQM and SQN series, via specific mounting plates
• Suited for use with gas families I, II, and III, as well as air

Specifications

• Model: VKP40.32
• Connection Size: 1-1/4 inch (Nominal size 32)
• Housing Size: DN40
• Rotation Angle: 0 to 90 degrees
• Maximum Flow: 50 m3/h air volumetric flow at Δp 1 kPa (fully open)
• Operating Temperature: Optimized for standard industrial combustion environments
• Materials: High-durability housing with rotation cylinder and integrated coupling
• Weight: Approximately 1.37 kg (3.0 lbs)

Applications

• Proportional control of gas or air volume in industrial and commercial combustion plants
• Integration into gas trains downstream of safety shut-off valves
• Use in systems requiring continuous modulation rather than simple on/off control
• Ideal for high-demand burner cycles and high actuating frequency applications
• Compatible with Siemens burner management systems like the LMV2 and LMV3 series