The ASCO Series 551 is a high-performance line of compact solenoid spool valves designed for the pilot control of pneumatic actuators. Featuring a unique NAMUR interface, these valves are industry standards for reliability and durability in harsh environments. Whether used for single-acting or double-acting actuators, the 551 series provides bubble-tight shutoff and exceptional resistance to dirt and moisture, ensuring long-term operational stability for industrial automation.
| Attribute | Specification |
|---|---|
| Body Material | Anodized Aluminum / 316L Stainless Steel |
| Port Size | 1/4" G or NPT |
| Function | 3/2 NC or 5/2 Convertible |
| Operating Pressure | 2 to 10 Bar (29 to 145 PSI) |
| Flow Rate (Cv) | 0.86 (Standard) |
| Voltage Options | 24VDC, 110VAC, 230VAC (50/60Hz) |
| Temperature Range | -25°C to +60°C (Standard) / -60°C (Arctic version) |
| Coil Insulation | Class H / IP65 Waterproof |
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