ASCO 551 Series 5 2 Way Pneumatic Solenoid Spool Valve Rotary Actuator Control Industrial Automation Systems
Price:
USD 70-125 per set
MOQ:
1
Delivery Time:
6-8 weeks
Brand:
ASCO
Product Description
ASCO 551 Series 5 2 Way Pneumatic Solenoid Spool Valve Rotary Actuator Control Industrial Automation Systems
Product Overview
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.
Features
- NAMUR Interface: Direct mounting to pneumatic actuators without extra piping.
- Convertible Function: Easily switch between 3/2 and 5/2 functions with a single flow plate.
- Bubble-Tight Shutoff: Unique T-seal and O-ring design ensures zero leakage.
- Corrosion Resistance: High-quality aluminum or stainless steel body options.
- Low Power Consumption: Energy-efficient coil designs suitable for continuous duty.
- Environmental Protection: Available with ATEX/IECEx explosion-proof certifications for hazardous areas.
- Long Cycle Life: Engineered for millions of cycles under demanding conditions.
Technical Specifications
| 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 |
Applications
- Oil and Gas: Control of refinery and pipeline valves.
- Chemical Processing: Handling corrosive environments and explosive atmospheres.
- Water Treatment: Automated flow control in filtration and treatment plants.
- Food and Beverage: Precision control in hygienic automation lines.
- Power Generation: Reliable pilot control for steam and gas plant actuators.
Frequently Asked Questions
Q: Can I use this valve for both single-acting and double-acting actuators?
A: Yes, the 551 series features a unique flow plate that allows you to convert the valve between 3/2 (single-acting) and 5/2 (double-acting) functions quickly.
Q: Does it come with explosion-proof certifications?
A: Absolutely. We offer various coil options including Ex d (Flameproof), Ex mb (Encapsulated), and Ex ia (Intrinsically Safe) to meet global safety standards.
Q: Is the NAMUR mounting hardware included?
A: Standard packages include the necessary mounting screws and seals for direct attachment to NAMUR actuators.
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Company
Xiangjing (Shanghai) M&E Technology Co., Ltd
Location
No.6 Building,No.98 Lane, No.1 Fulian Road, Baoshan District, Shanghai, China
Contact Person
Edward Zhao