SKP25.411U1 Siemens Pressure Regulator

Overview

The Siemens SKP25.411U1 is a high-pressure electro-hydraulic actuator designed for use with Siemens VG series gas valve bodies. It serves a dual purpose as both a safety shut-off valve and a constant pressure regulator, simplifying gas train designs by reducing the number of required components. This model is specifically engineered for high-pressure applications, featuring an integrated pressure regulating governor that maintains a stable downstream gas pressure regardless of upstream fluctuations.

Features

• Combined safety shut-off and pressure regulation in a single modular unit
• Integrated Proof of Closure (POC) over-travel switch for enhanced safety signaling
• Electro-hydraulic operation providing slow opening and rapid, fail-safe closing in less than 0.8 seconds
• Excellent pressure control characteristics with zero regulator droop
• Visual position indicator and “power on” light for easy monitoring of valve status
• Modular design allows for 360 degree actuator rotation to facilitate easy field wiring and installation
• Low power consumption during continuous operation

Specifications

• Model: SKP25.411U1
• Operating Voltage: 110 to 120 Vac (50/60 Hz)
• Maximum Outlet Pressure: Up to 20 psi (with appropriate spring)
• Factory Set Spring Range: 1.5 to 10 psi (Yellow AGA22 spring); 8.5 to 20 psi (Red AGA23 spring)
• Power Consumption: 13.5 VA
• Protection Rating: IP54 (standard); NEMA 4 possible with optional gasket kit
• Operating Temperature: 5 F to 140 F (-15 C to 60 C)
• Weight: Approximately 4.0 lbs (1.8 kg)

Applications

• Supervision of gas trains for industrial and commercial burners
• High-pressure gas regulation for boilers, ovens, and dryers
• Process heating systems requiring reliable safety shut-off and precise pressure control
• Suitable for use with natural gas, propane, and butane systems
• Compatible with Siemens gas valve bodies including VGG, VGF, VGD, and VRD series