VKP40.40 Siemens Valve

Overview

The Siemens VKP40.40 is a high-precision proportional controlling valve designed for the modulation of gas or air volumes in combustion plants. This butterfly-style valve is engineered for integration into gas trains and provides a characterized flow with a proportional increase in volumetric flow across a 0 to 90 degree angular rotation. It is built to meet demanding industrial requirements, offering a wide modulation range and high positioning cycle frequencies to ensure stable and efficient burner operation.

Features

• Proportional flow control with a wide modulation range of greater than 1:25
• Characterized linear flow across the full 90 degree rotation of the cylinder
• Robust and maintenance-free design suitable for high-demand industrial environments
• Versatile mounting options designed for fitting between counter-flanges
• Compatibility with various Siemens actuators including the SQM33, SQM4, and SQN series
• Capable of being directly attached to VGD2 series double gas valves
• Integrated mechanical stop options for fully closed or fully open positions

Specifications

• Model: VKP40.40
• Nominal Size: 1-1/2 inch (DN40)
• Angular Rotation: 0 to 90 degrees
• Maximum Flow Rate: 69 m3/h at delta p of 1 kPa (fully open)
• Medium Suitability: Gas families I, II, III and air
• Housing Size: DN40
• Required Accessories: AGF10.40 or AGF10.40U connecting flanges
• Weight: Approximately 1.4 kg to 1.5 kg

Applications

• Precise control of gas and air volume in industrial and commercial combustion plants
• High-demand burner systems requiring accurate modulation and frequent positioning cycles
• Integration into gas trains for boilers, furnaces, and other thermal processing equipment
• Use in combination with Siemens burner management systems such as the LMV2 or LMV3 series