SKP25.011U1 Siemens Actuator

Overview

The Siemens SKP25.011U1 is a versatile electro-hydraulic actuator designed for use with Siemens VG series gas valve bodies. It provides safety shut-off control and integrated pressure regulation for industrial and commercial burner applications. By combining these functions into a single unit, it reduces the complexity, size, and weight of gas train assemblies. The actuator is engineered for slow opening and immediate, fail-safe closing upon power interruption, ensuring high levels of safety and precision in gas flow control.

Features

• Safety shut-off and gas pressure regulation combined in a single compact unit
• Integrated Proof of Closure (POC) over-travel switch for enhanced safety monitoring
• Visual position indicator and “”power on”” light for easy status verification
• Modular design allows for 360-degree rotation, simplifying field wiring and installation
• Quick-connect wiring terminals and low power consumption (13.5 VA)
• Suitable for use as a 1:1 air/gas ratio regulator or zero governor
• Accurate pressure control characteristics with zero regulator droop

Specifications

• Model: SKP25.011U1
• Operating Voltage: 110V to 120V AC (50/60 Hz)
• Power Consumption: 13.5 VA
• Closing Time: Less than 0.8 seconds
• Opening Time: 6 to 14 seconds (dependent on valve size)
• Enclosure Rating: NEMA 1, 2, 5, 12 (NEMA 3, 3R, 4 with optional AGA66 gasket)
• Temperature Range: 5 F to 140 F (-15 C to 60 C)
• Output Force: 100 lb (450 N)
• Maximum Stroke: 1 inch (26 mm)
• Weight: Approximately 3.5 lb (1.6 kg)

Applications

• Supervision and control of industrial and commercial burners
• Used in boilers, ovens, dryers, and various process heating systems
• Ideal for high-demand burner cycles requiring continuous or frequent operation
• Compatible with Siemens VGG, VGF, VGD2, VGD4, VRD, and VRF gas valve bodies
• Applications requiring 1:1 air/gas proportioning or zero governing control