Product Description:
The ASCO solenoid valve portfolio offers a wide selection of high-performance valves, specially designed to provide reliable control in various industries such as industrial automation, process control, and hazardous area environments. This extensive collection includes multiple series, each tailored for specific application needs.
The 551 and 8551 Series consist of pilot-operated spool valves ideal for pneumatic control systems. These valves incorporate a NAMUR interface and feature a convertible design that allows a single valve to operate as either a 3/2-way or 5/2-way valve. This versatility makes them suitable for both single-acting and double-acting actuators, providing a highly adaptable platform for pneumatic applications.
The 8320 and 320 Series include direct-acting and some pilot-operated 3/2-way valves designed for a broad spectrum of general service applications. These valves are capable of functioning efficiently without requiring a minimum pressure differential, enhancing their flexibility in various operating conditions.
For liquid, corrosive, and air or inert gas services, the 8210 and 8262 Series offer pilot-operated 2/2-way general service valves. The 8210 series is recognized for its cost-effective and high-flow performance, while the 8262 series provides a robust and durable 2/2-way valve solution.
The 531 Series presents spool valves with 3/2 or 5/2 functionalities, often available with intrinsically safe (IS) options for enhanced safety in hazardous environments. Additionally, the 210 Series includes valves such as the 8210G094 model, suitable for both liquid and gas services.
These valves are manufactured from various body materials, including black anodized aluminum, brass, and stainless steel (316L), with sealing options such as NBR, PUR, and FKM. They come in different configurations like 2/2-way, 3/2-way, and 5/2-way, and feature single or double solenoid constructions for either spring return or bistable operation.
Many models offer NAMUR mounting interfaces and protection ratings of IP65, IP66, or IP67. For demanding and hazardous applications, explosion-proof versions are available, certified by standards including ATEX, IECEx, UL, and CSA. Low-power variants are also offered to meet specific operational requirements.
Features:
551 / 8551 Series (Spool Valves)
The 551 and 8551 series spool valves feature a NAMUR interface with threaded port connections, allowing for direct mounting to actuators. This design ensures seamless integration and reliable performance in various applications.
These spool valves are highly versatile, as a single valve model can be configured to function either as a 3/2 normally closed (NC) valve or a 5/2 valve, adapting easily to different system requirements.
Environmental protection is enhanced through pipable exhaust ports, which can all be connected. This is particularly beneficial in sensitive environments such as clean rooms, where maintaining air purity is essential.
Safety is a key consideration for the 551 series, which holds TÜV certification, while the 551-553 series are certified by EXIDA. These certifications guarantee safety integrity levels of SIL 2 (with a hardware fault tolerance of 0) and SIL 3 (with a hardware fault tolerance of 1), ensuring reliable and safe operation.
An integrated manual operator comes standard with these valves, simplifying the commissioning process and ongoing maintenance tasks.
8320 / 320 Series (Direct-Acting Valves)
The 8320 and 320 series valves are designed for a broad range of general service applications. Their direct-acting mechanism allows them to operate without requiring a minimum pressure differential, offering flexibility in various system pressures.
Additionally, these valves can be mounted in any orientation, providing versatility in installation to suit different mechanical arrangements and space constraints.
8210 / 8262 Series (General Service Valves)
Valves from the 8210 and 8262 series are engineered for economical, high-flow performance suitable for liquids, corrosive substances, as well as air and inert gases. They deliver reliable and efficient service across multiple media types.
Constructed from either brass or stainless steel, these valves offer durability that meets the demands of various operational environments and ensures long-lasting performance.
531 Series
The 531 series valves provide flexible functionality, available in both 3/2-way and 5/2-way configurations to accommodate different control schemes.
They are intrinsically safe, having certification for use in hazardous locations where electrical energy must be limited to prevent ignition risks.
Common Features Across All Series
All series offer multiple body material options, including aluminum, brass, and stainless steel, allowing selection based on application requirements and compatibility with different media.
They support a wide range of voltages such as DC 24V, AC 24V, AC 120V, and AC 220V, among others, providing adaptability to various electrical systems.
Explosion-proof versions are available, holding ATEX and IECEx certifications. These variants are specially designed for safe operation in hazardous environments.
Low power consumption models are also offered, ideal for remote installations or situations where alternative power sources are necessary.
In terms of flow capacity, the 1/4" valve models typically deliver up to 700 liters per minute, while 1/2" models can handle flow rates up to 3000 liters per minute, ensuring efficient handling of fluid and gas flows in your system.
Technical Parameters:
| Valve Type |
Solenoid Operated, Pilot-operated, Direct-acting |
| Port Sizes |
1/4" To 1" |
| Function |
2/2 NC, 3/2~5/2, 2/2 NO |
| Body Materials |
Aluminum, Brass, Stainless Steel |
| Seal Materials |
NBR, PUR, FKM, PTFE |
| Temperature Range |
-60°C To +125°F |
| Protection Class |
IP65, IP66, IP67 |
| Operating Pressure |
Up To 250 PSI |
Applications:
Pneumatic Actuator Control
This system supports direct NAMUR mounting on quarter-turn actuators, providing efficient and reliable pneumatic actuation for various industrial applications.
Industrial Automation
Designed for general-purpose pneumatic control, it plays a vital role in manufacturing and process automation, ensuring smooth and consistent operation.
Process Control
Used extensively in chemical, petrochemical, and hybrid industries, this technology offers precise valve actuation and fluid control to maintain optimal process conditions.
Hazardous Areas
Available in explosion-proof and intrinsically safe versions, these controls are suitable for use in Zone 1, 2, 21, and 22 hazardous environments, ensuring safety and compliance.
Water & Wastewater Treatment
Effective control of water and treatment chemicals is achieved using these pneumatic systems, contributing to the efficient operation of treatment facilities.
Pharmaceutical & Food Processing
Ideal for clean room applications, these controls feature environmentally protected construction to meet the demanding hygiene standards of pharmaceutical and food industries.
Oil & Gas
The pneumatic control solutions provide reliable management of liquid petroleum gases and other fluids, ensuring safety and efficiency in oil and gas operations.
Packaging Machinery
Used in packaging and material handling equipment, these pneumatic controls enhance automation and precision in various packaging processes.
Remote & Alternative Power Locations
Featuring low-power designs, these systems are suitable for installations powered by solar, battery, and other remote energy sources, supporting operations in off-grid locations.
Analytical and Diagnostic Equipment
Providing precision fluid control, these pneumatic actuators are essential components in sensitive analytical and diagnostic instruments.
Support and Services:
ASCO solenoid valves are engineered to provide reliable and efficient fluid control solutions across a wide range of applications. Our product technical support and services are designed to help you achieve optimal performance and longevity from your ASCO solenoid valve.
Technical support includes assistance with product selection, installation guidance, troubleshooting, and maintenance recommendations. Our team of experts is available to help you understand valve specifications, compatibility with your system, and to provide solutions tailored to your application requirements.
We offer comprehensive documentation, including datasheets, installation manuals, and technical bulletins, to ensure you have all the necessary information for proper valve operation. Additionally, training sessions and webinars may be available to enhance your understanding of valve functions and best practices.
For maintenance and repair, we recommend following the guidelines outlined in the product manual to ensure safety and performance. Replacement parts and accessories are available to support your maintenance needs, ensuring minimal downtime.
ASCO is committed to continuous product improvement and innovation. We encourage customers to provide feedback and report any issues to help us maintain the highest standards of quality and service.
Packing and Shipping:
Each ASCO Solenoid Valve is carefully packaged to ensure maximum protection during transit. The valve is first wrapped in a protective anti-static material to prevent any damage to its delicate components. It is then placed in a custom-fitted foam insert within a sturdy cardboard box designed to absorb shocks and vibrations.
For bulk orders, multiple units are securely arranged in larger cartons with additional padding to prevent movement. All packages are clearly labeled with product information, handling instructions, and shipping details to facilitate smooth logistics.
Shipping is handled through reliable carriers with tracking options available to ensure timely delivery. Depending on the destination, the solenoid valves can be shipped via air, sea, or ground transportation, adhering to all relevant safety and regulatory standards.
Customers are advised to inspect the packaging upon arrival and report any damages immediately to ensure prompt resolution.
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