SKP55.003E2 Siemens Controller

Overview

The Siemens SKP55.003E2 is a high-performance electro-hydraulic actuator designed for use with Siemens gas valves. It functions as a differential pressure governor, specifically engineered to maintain a constant 1-to-1 air-to-gas ratio in industrial and commercial combustion systems. This safety-critical component ensures reliable gas valve operation and rapid fail-safe closure, providing precise control even in systems where pressure conditions in the burner and combustion chamber do not change proportionally with load changes.

Features

• Differential pressure governor maintains a constant 1-to-1 ratio across the entire air range
• Slow opening and rapid fail-safe spring-return closure (less than 0.8 seconds on power loss)
• Built-in stroke indication provides clear visual feedback of the valve position
• Integrated oscillating pump and hydraulic relief system for smooth operation
• Robust design suitable for use with gas families I, II, and III, as well as air
• Durable housing with an IP54 protection rating for industrial environments
• Modular compatibility allows it to be used with a wide range of Siemens VG series valve bodies

Specifications

• Model: SKP55.003E2
• Operating Voltage: AC 230 V (50/60 Hz)
• Power Consumption: Approximately 10 to 13.5 VA
• Duty Cycle: 100% (suitable for continuous operation)
• Protection Rating: IP54
• Operating Temperature: -10 C to +60 C (14 F to 140 F)
• Opening Speed: Approximately 2 mm/s
• Closing Time: Less than 0.8 seconds
• Weight: Approximately 1.9 kg to 2.3 kg
• Electrical Connection: Connector as per DIN EN 175301-803, Design A

Applications

• Forced draft gas burners with mechanical or electronic air/fuel ratio control
• Combustion plants with combined heat recovery systems
• Plants with negative pressure levels on either the gas or air side
• Industrial processes including boilers, ovens, dryers, and specialized process heating
• Replacement for safety shut-off and pressure control in gas trains of gas-fired equipment