Product Description:
The ASCO solenoid valve portfolio includes a wide range of high-performance valves designed to provide reliable control in various fields such as industrial automation, process control, and hazardous area environments. This extensive selection encompasses multiple series, each tailored to meet specific application requirements.
Among the offerings, the 551 and 8551 Series stand out as pilot-operated spool valves perfect for pneumatic control tasks. These valves feature a NAMUR interface and a versatile design that enables a single valve to operate either as a 3/2-way or 5/2-way valve. This flexibility makes them suitable for use with both single-acting and double-acting actuators. The 551 series, in particular, provides a highly adaptable platform for pneumatic systems.
The 8320 and 320 Series consist of direct-acting, and in some cases pilot-operated, 3/2-way valves designed to handle a broad range of general service applications. One of their key advantages is the ability to function without requiring a minimum pressure differential, enhancing their operational reliability.
For liquid, corrosive, and air or inert gas services, the 8210 and 8262 Series offer reliable pilot-operated 2/2-way general service valves. The 210/8210 series is recognized for delivering economical, high-flow performance, whereas the 8262 series provides a sturdy and robust 2/2-way valve solution.
The 531 Series features spool valves that provide 3/2 or 5/2 functionality, often incorporating intrinsically safe (IS) options, making them suitable for environments where safety is a priority.
Additionally, the 210 Series highlights the 8210G094 model, which is utilized for both liquid and gas service applications, further expanding the versatility of the ASCO valve range.
These valves are constructed from various body materials including black anodized aluminum, brass, and stainless steel (316L). Seal options are available in NBR, PUR, and FKM. Configurations encompass 2/2-way, 3/2-way, and 5/2-way designs, with options for single or double solenoid constructions to enable spring return or bistable operation. Many models incorporate NAMUR mounting interfaces and provide protection ratings of IP65, IP66, or IP67.
For demanding and hazardous applications, explosion-proof versions are available, certified to standards such as ATEX, IECEx, UL, and CSA. Low-power variants are also offered, ensuring the portfolio meets the needs of a wide spectrum of industrial environments.
Features:
551 / 8551 Series (Spool Valves)
The 551 / 8551 series features a NAMUR interface with threaded port connections that allow for direct actuator mounting. This design facilitates easy integration in automated systems.
These spool valves are highly versatile, capable of being configured for either 3/2 normally closed (NC) or 5/2 function, providing flexibility in various applications.
All exhaust ports are pipable, enabling connection and enhancing environmental protection. This feature is particularly beneficial in cleanroom environments where contamination control is critical.
Safety and reliability are prioritized, with TÜV certification for the 551 series and EXIDA certification for the 551-553 series. These valves meet integrity levels SIL 2 (with hardware fault tolerance HFT=0) and SIL 3 (HFT=1).
The inclusion of a standard manual operator allows for straightforward commissioning and maintenance procedures.
8320 / 320 Series (Direct-Acting)
The 8320 / 320 series valves are designed to cover a broad range of general-service applications. Their direct-acting mechanism eliminates the need for a minimum pressure differential, making them suitable for diverse operational conditions.
Additionally, these valves are highly adaptable in terms of installation, as they can be mounted in any orientation without compromising performance.
8210 / 8262 Series (General Service)
These series are known for high flow capacity and cost-effectiveness, ideal for handling liquids, corrosive substances, as well as air and inert gases.
Their durable construction options include brass or stainless steel bodies, ensuring compatibility with a variety of media and enhancing longevity.
531 Series
The 531 series provides flexible functionality, available either as 3/2-way or 5/2-way valve configurations to suit specific control requirements.
They are intrinsically safe, certified for use in hazardous environments due to their capability to operate with limited current and voltage, minimizing ignition risks.
Features Across All Series
Valve bodies across all series are offered in multiple materials, including aluminum, brass, and stainless steel, allowing selection based on application needs.
Electrical compatibility is broad, supporting various voltages such as DC 24V, AC 24V, AC 120V, AC 220V, and more.
Explosion-proof versions are available, featuring ATEX and IECEx certifications to ensure safe operation in hazardous areas.
For applications requiring energy efficiency or remote power sources, low power variants are also offered.
High flow rates are a consistent feature, with 1/4" valve models typically capable of 700 liters per minute, and 1/2" models reaching up to 3000 liters per minute.
Technical Parameters:
| Seal Materials |
NBR, PUR, FKM, PTFE |
| Function |
2/2 NC, 3/2~5/2, 2/2 NO |
| Operating Pressure |
Up To 250 PSI |
| Valve Type |
Solenoid Operated, Pilot-operated, Direct-acting |
| Protection Class |
IP65, IP66, IP67 |
| Body Materials |
Aluminum, Brass, Stainless Steel |
| Port Sizes |
1/4" To 1" |
| Temperature Range |
-60°C To +125°F |
Applications:
Pneumatic Actuator Control
The pneumatic actuator control system is designed for direct NAMUR mounting on quarter-turn actuators, ensuring seamless integration and efficient operation.
Industrial Automation
This technology is widely used for general-purpose pneumatic control in various manufacturing and process automation settings, enhancing productivity and reliability.
Process Control
In industries such as chemical, petrochemical, and hybrid sectors, pneumatic actuator control plays a crucial role in valve actuation and fluid management.
Hazardous Areas
Special explosion-proof and intrinsically safe versions are available for use in hazardous environments classified as Zone 1, 2, 21, and 22, ensuring safety and compliance.
Water & Wastewater Treatment
Pneumatic control systems are also applied in the treatment of water and wastewater, managing the dosing and control of treatment chemicals efficiently.
Pharmaceutical & Food Processing
For clean room environments, these control systems offer environmentally protected construction, meeting the stringent standards required in pharmaceutical and food processing industries.
Oil & Gas
They are utilized for controlling liquid petroleum gases and various other fluids within the oil and gas sector, contributing to safe and effective operations.
Packaging Machinery
In packaging and material handling equipment, pneumatic control provides reliable and precise operation of machinery components.
Remote & Alternative Power Locations
Low-power designs make these systems suitable for remote locations, including installations powered by solar energy and batteries.
Analytical and Diagnostic Equipment
Finally, pneumatic actuator control offers precision fluid control necessary for sensitive analytical and diagnostic instruments.
Support and Services:
ASCO Solenoid Valve Product Technical Support and Services
ASCO solenoid valves are precision-engineered components designed to control the flow of liquids and gases in various industrial applications. To ensure optimal performance and longevity of your ASCO solenoid valve, it is important to follow proper installation, operation, and maintenance guidelines.
Technical Support:
Our technical support team is dedicated to assisting you with product selection, troubleshooting, and application-specific inquiries. Whether you need help identifying the right valve for your system, understanding electrical specifications, or resolving operational issues, our experts are available to provide detailed guidance and technical documentation.
Services Offered:
- Product Selection Assistance – Helping you choose the correct solenoid valve based on your application requirements.
- Installation Guidance – Providing instructions and best practices to ensure proper valve installation.
- Troubleshooting Support – Diagnosing and resolving common issues such as valve failure, leakage, or coil burnout.
- Maintenance Recommendations – Advising on routine inspection, cleaning, and part replacement to maintain valve performance.
- Custom Solutions – Assisting with customization requests for specialized applications or unique system requirements.
- Replacement Parts – Supplying genuine ASCO replacement parts to ensure compatibility and reliability.
For detailed product manuals, wiring diagrams, and technical bulletins, please refer to the ASCO website or product documentation provided with your solenoid valve.
Proper care and timely support are key to maximizing the efficiency and service life of your ASCO solenoid valve. We are committed to providing you with the resources and assistance needed to keep your operations running smoothly.
Packing and Shipping:
The ASCO Solenoid Valve is carefully packaged to ensure it arrives in perfect condition. Each valve is securely placed in a protective foam insert within a sturdy cardboard box to prevent damage during transit. The packaging includes detailed product information, installation instructions, and warranty documentation.
For shipping, the product is handled with care by our trusted logistics partners. We offer various shipping options to accommodate different delivery timelines and locations. All shipments are tracked and insured to guarantee safe and timely delivery to your specified address.
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