VKP40.50 Siemens Valve

Overview

The Siemens VKP40.50 is a high-performance proportional controlling valve designed for the precise regulation of gas or air volume in combustion plants. Engineered for integration into gas trains, this valve is typically fitted between counter-flanges and is often used in conjunction with Siemens actuators and double gas valves to ensure reliable and efficient burner operation. It is specifically designed to provide a proportional increase of volumetric flow across an angular rotation of 0 to 90 degrees, making it ideal for systems with demanding modulation requirements.

Features

• Proportional flow characteristic ensures a linear increase in volume relative to the degree of rotation
• Wide modulation range of greater than 25:1 for versatile application in various burner cycles
• Maintenance-free design provides long-term reliability and reduces operational costs
• Robust construction allows for high actuating cycle frequencies in industrial environments
• Integrated mechanical stop can be adjusted to provide a physical limit at -5 degrees (fully closed) or 100 degrees (fully open)
• Compatible with a wide range of Siemens actuators including the SQM33, SQM40, SQM45, and SQM50 series

Specifications

• Model: VKP40.50
• Housing Size: DN40
• Nominal Size: 2 inches (50 mm)
• Angular Rotation: 0 to 90 degrees
• Medium Compatibility: Gas families I, II, III and air
• Connection Type: Flanged (requires AGF10 series flanges)
• Flow Capacity: Approximately 88 m3/h air-volumetric flow at 1 kPa when fully open
• Weight: Approximately 6 lbs (2.7 kg)

Applications

• Supervision and control of gas or air volume in industrial and commercial combustion plants
• Integration into gas trains for safety shut-off and modulation
• Use with burner management systems such as the Siemens LMV2 or LMV3 series
• Proportional control in high-demand burner operations requiring precise start volumes and wide modulation
• Attachment to Siemens VGD2 double gas valves for comprehensive fuel train management