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SKB82.51U
The SKB82.51U from Siemens is an electro-hydraulic actuator designed for reliable actuation of control valves. This actuator operates at a nominal voltage of 24 VAC and features a robust spring return mechanism for safety and redundancy under power loss conditions.
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Technical specifications for SKB82.51U
| Manufacturer | Siemens |
|---|---|
| Product Type | Electro-Hydraulic Actuator |
| Product Line | Flowrite 599 Series |
| Part Number | SKB82.51U |
| Fail-Safe Mechanism | Spring Return (SR) |
| IP Rating | IP54 |
| NEMA Rating | NEMA 1 |
| Positioning Time | 120 sec |
| Compatible Valve Stroke Length | 3/4 inches |
| Positioning Signal | 3-Position |
| Nominal Operating Voltage | 24 VAC |
| Positioning Force | 4400 N |
| Control Signal | Floating Control |
| Ambient Operating Temperature | -15 to 55 °C |
| Compatibility | Flowrite valves and other standard valves with a 3/4-inch stroke |
The Siemens SKB82.51U is part of the Flowrite 599 Series and functions as an electro-hydraulic actuator effective for a variety of applications. This actuator utilizes a fail-safe mechanism with a spring return (SR) design to ensure that the valve returns to a safe position when power is lost. Operating under a nominal voltage of 24 VAC, this component provides dependable performance in industrial settings.
The actuator features a positioning force capacity of 4400 N, allowing it to control valves with precision. With compatibility for Flowrite valves and other standard valves featuring a 3/4-inch stroke, the SKB82.51U is versatile and adaptable for various installations.
In terms of functionality, the actuator utilizes a 3-position control signal for effective modulation, which translates into accurate valve positioning. The device has a specified positioning time of 120 seconds, making it suitable for applications where controlled response time is essential. The actuator can operate within an ambient temperature range of -15 to 55 °C, providing flexibility in diverse environmental conditions. Its enclosure is rated IP54, protecting it from dust and limited water exposure, while the NEMA 1 rating speaks to its suitability in light indoor environments.
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