SKP25.203E1 Siemens Pressure Regulator

Overview

The Siemens SKP25.203E1 is a versatile electro-hydraulic actuator designed for use with gas valves in industrial and commercial burner applications. It functions as both a safety shut-off valve and a constant pressure regulator, combining two critical gas train components into a single, compact unit. This 2-stage actuator is engineered to open slowly and close rapidly (in less than 0.8 seconds) upon power interruption, ensuring a high level of safety. Its integrated pressure governor maintains a consistent downstream pressure regardless of fluctuations in the inlet pressure, making it an essential component for precise combustion control.

Features

• Dual-function design provides safety shut-off and pressure regulation in one unit
• 2-stage setpoint changeover allows for flexible burner control
• Electro-hydraulic operation ensures smooth, slow opening and immediate fail-safe closing
• Integrated constant pressure governor with excellent control characteristics and zero droop
• Built-in stroke indication provides visual confirmation of the valve’s position
• Power-on indication light visible through the terminal box cover
• Modular construction allows for easy mounting and 360 degree rotation for flexible installation
• Durable design suitable for gas families I, II, III, and air

Specifications

• Model: SKP25.203E1
• Operating Voltage: AC 110 V (50/60 Hz)
• Power Consumption: Approximately 13.5 VA
• Pressure Range: Up to 60 mbar
• Control Type: 2-stage on/off with constant pressure governor
• Closing Time: Less than 0.8 seconds
• Protection Rating: IP54
• Electrical Connection: M20 x 1.5 cable entry with terminal connections
• Operating Temperature: 5 F to 140 F (-15 C to 60 C)
• Weight: Approximately 1.6 kg

Applications

• Forced draft gas burners with mechanical or electronic air-to-fuel ratio control
• Industrial and commercial boilers and furnaces
• Atmospheric burners in modulating or multistage operation
• Process heating systems including ovens, dryers, and kilns
• Gas trains for gas-fired combustion plants requiring integrated pressure regulation and safety shut-off