SKP25.012U1 Siemens Actuator

Overview

The Siemens SKP25.012U1 is a high-performance electro-hydraulic actuator designed for use with VG series gas valve bodies. This multifunctional unit serves as a safety shut-off valve and a constant pressure regulator for industrial and commercial burner applications. By combining these critical functions into a single compact component, it reduces the complexity, size, and weight of the gas train. The actuator features a slow-opening and immediate-closing mechanism upon power interruption to ensure fail-safe operation.

Features

• Integrated safety shut-off and gas pressure regulation in one unit
• Proof of Closure (POC) over-travel switch and an adjustable auxiliary switch
• Modular design allows for 360 degree rotation for flexible installation
• Visual position indicator and “Power On” indication light for easy monitoring
• Slow opening and rapid closing (less than 0.8 seconds) for enhanced safety
• Suitable for use with all VG series gas valve bodies from 1/2-inch to 6-inch sizes
• Agency approvals include UL listed, FM approved, and CSA certified

Specifications

• Model: SKP25.012U1
• Operating Voltage: 110V to 120V AC (50/60 Hz)
• Power Consumption: 13.5 VA
• Protection Rating: IP54 (NEMA 4 optional with AGA66 kit)
• Operating Temperature: 5 F to 140 F (-15 C to 60 C)
• Closing Time: Less than 0.8 seconds
• Weight: Approximately 3.5 lbs (1.6 kg)
• Connection: Four pre-mounted screws for square flange mounting

Applications

• Supervision of gas flames in industrial and commercial burner systems
• Use in boilers, ovens, dryers, and process heating systems
• Applicable as a 1:1 air/gas ratio regulator or zero governor
• Suitable for high-demand burner operations requiring precise manifold pressure control
• Safety shut-off control for gas trains in HVAC and industrial combustion systems