VKP40.20 Siemens Valve

Overview

The Siemens VKP40.20 is a high-efficiency proportional controlling valve designed for the precise regulation of gas or air volume in combustion plants. Engineered for integration into gas trains, this valve features a specialized rotation cylinder that provides a proportional increase in volumetric flow across a 90-degree angular rotation. It is built to meet demanding industrial requirements, offering a wide modulation range and high positioning cycle frequencies to ensure smooth operation and consistent results in burner systems.

Features

• Proportional flow control with a linear increase across a 0 to 90 degree rotation
• Wide modulation range of greater than 25:1 for versatile performance
• Maintenance-free design suitable for high-demand industrial environments
• Robust housing construction with a rotation cylinder and coupling
• Compatible with various Siemens actuators, including the SQN and SQM series
• Ability to be attached to VGD2 double gas valves for integrated safety solutions
• Integrated mechanical stops at -5 degrees (fully closed) and 100 degrees (fully open)

Specifications

• Model: VKP40.20
• Nominal Size: 3/4 inch (20 mm)
• Connection Type: Flanged (requires AGF10 flanges for installation)
• Angular Rotation: 0 to 90 degrees
• Media Compatibility: Air, Natural Gas, and gases of families I, II, and III
• Operating Temperature: -5 F to 140 F (-20 C to 60 C)
• Protection Rating: IP54 (when used with appropriate actuators)
• Approvals: CE and EAC certified; complies with Gas Appliances Regulation (EU) 2016/426

Applications

• Control of gas or air volumetric flow in commercial and industrial combustion plants
• Integration into gas trains for burners requiring high-precision modulation
• Use in systems requiring small start volumes and extremely low minimum flows
• Compatible with burner management systems such as the Siemens LMV2 or LMV3 series
• Suitable for HVAC and boiler systems with high positioning cycle requirements