ASCO Explosion proof solenoid valve EFG551H401M explosion-proof electric control reversing G551B401MO VCEFCMG551H401MO

Product Description:

The ASCO 551, 553, and 531 series are compact spool-type solenoid valves designed to cater to different operational needs through variations in port size and flow capacity. Predominantly employed for gas control in sectors such as chemical engineering and food & beverage processing, each series offers specialized features suited for specific applications. Below is a comprehensive overview of the characteristics and uses of each series.

Also known as the 8551 Series, the 551 Series consists of 1/4-inch 3-way and 4-way compact spool solenoid valves, engineered specifically for air and inert gas control in demanding and corrosive environments. Their durable design ensures reliable performance under harsh operating conditions.

• Key Parameters: They operate within a pressure range from vacuum up to 150 psi, with a medium temperature range spanning from -60℃ to 80℃. The flow capacity ranges from 0.5 to 1.0 Cv (0.43 to 0.86 Kv). Multiple voltage options are available, including DC voltages such as 6VDC, 12VDC, and 24VDC, as well as AC voltages like 24VAC, 110VAC, and 220VAC, making them adaptable to various power supply environments.
• Structure & Materials: Valve bodies are made from anodized aluminum, brass, or optionally stainless steel. Port standards include G ISO228/1, G BSPP, and NPTF, with 1/4-inch NPT and BSP threaded connections. These valves support multiple function modes including 3/2 NC (Normally Closed), 4/2, 4/3 CC (Center Closed), and 4/3 NO (Normally Open). Both single-coil and double-coil configurations are supported, with installation possible in any orientation.
• Core Advantages & Applications: Incorporating a hybrid sealing configuration that combines rigid T-seals with flexible O-rings, these valves offer excellent sealing and resistance to contamination, enabling stable operation for millions of cycles. They hold certifications such as ATEX, UL, and CSA for explosion-proof performance, making them ideal for industries like chemical processing, oil refining, food & beverage production, and life sciences.

Known as the 8553 Series, the 553 Series features larger 1/2-inch 3-way and 4-way solenoid valves. Compared to the 551 Series, these valves provide greater flow capacity, making them suitable for applications requiring higher throughput, while still focusing on air and inert gas management.

• Key Parameters: Operating pressures range from vacuum up to 150 psi. The flow range is significantly increased, from 2.0 to 6.0 Cv (1.73 to 5.19 Kv). Voltage options match those of the 551 Series, supporting diverse power requirements. The valves conform to an IP65 ingress protection rating and comply with functional safety loop standards below SIL3, ensuring robust safety capabilities.
• Structure & Materials: Constructed from aluminum, brass, or 316L stainless steel, the valve bodies use port standards G ISO228/1, G BSPP, and NPTF. Connections are made via 1/2-inch NPT or BSP threads. These valves can be mounted either on actuators using NAMUR interfaces according to VDI/VDE3845 standards or directly on piping through threaded fittings.
• Core Advantages & Applications: They feature exhaust ports that can be piped externally, with NAMUR ports conveniently arranged on one side, enhancing resistance to dust and moisture. Their waterproof and explosion-proof design, combined with low power consumption, suits remote power supply installations. Typical applications include demanding industrial environments such as chemical plants and refineries where high flow rates are necessary.

The 531 Series is a spool-type solenoid valve designed with an emphasis on safety and reliability. Offering both explosion-proof and non-explosion-proof variants, these valves are predominantly used for actuator pilot control within chemical and hybrid industries. A popular model within this series is the SCG531C001MS.

• Key Parameters: The operating pressure range extends from -0.95 bar to +10 bar, with an ambient temperature tolerance between -10℃ and +60℃. At 6 bar pressure, the flow rate reaches 1150 L/min (ANR). The valve features a G1/4 interface size and a port diameter of 6mm, with a flow coefficient of 0.95 m³/h. Common voltage ratings include 220VAC and 24VDC. Coil power consumes 6 VA at inrush and holds at 3.5 VA.
• Structure & Materials: The valve body is made of black anodized aluminum, using low-friction, non-stick T-seals for optimal sealing. The top cover and end caps are constructed from polyamide, with internal components crafted from acetal and aluminum. Electrical connections are available via DIN or metal M12 connectors, and installation follows NAMUR standards. Exhaust ports use threaded interfaces to minimize impurities entering the valve.
• Core Advantages & Applications: The design incorporates internal air circulation to prevent moisture ingress into the actuator and valve body, thereby reducing corrosion risks. Compliance with EN60730 safety standards and explosion-proof certifications such as ATEX and IECEx ensures safe operation. These valves exhibit excellent cleanliness and stability, making them particularly beneficial for environments with strict hygiene requirements including pharmaceuticals and food industries, as well as for pilot control of actuators in chemical processing.

Technical Parameters:

This ASCO Solenoid Spool Valve is an electron magnetic valve designed for reliable operation. The Solenoid valve features a plate type connection method, supports a nominal pressure of 400 Bar, and has a caliber of 1/4. Its aluminium body ensures durability, making it suitable for various industrial applications.

Applications:

The ASCO Solenoid Valve, part of the renowned Manufacturer Series 551, is a reliable and efficient electromagnetic valve designed for various industrial and commercial applications. As a 2-way valve with a 1/4 caliber and an aluminum body, it offers durability and excellent performance in controlling the flow of liquids and gases. This solenoid valve is CE certified, ensuring it meets international safety and quality standards, making it a trusted choice for numerous application occasions and scenarios.

In industrial automation, the ASCO electromagnetic valve is widely used to regulate pneumatic and hydraulic systems, providing precise control over fluid flow. Its compact design and robust aluminum construction make it suitable for integration into machinery where space and reliability are critical. The valve’s rapid response time and stable operation enhance efficiency in manufacturing processes, including packaging, material handling, and assembly lines.

The ASCO solenoid valve also finds extensive application in HVAC systems, where it controls the flow of refrigerants and air. Its ability to handle various pressures and temperatures makes it ideal for heating, ventilation, and air conditioning scenarios, ensuring optimal environmental conditions in residential, commercial, and industrial buildings.

Water treatment plants and irrigation systems benefit from the ASCO electromagnetic valve’s precise flow control capabilities. It facilitates automated water distribution, helping conserve resources and improve system responsiveness. Additionally, its aluminum body resists corrosion, which is advantageous in outdoor and wet environments.

In the automotive and aerospace industries, the ASCO 551 series solenoid valve is used for fuel control, emission systems, and other fluid management tasks that require high reliability and quick actuation. Its CE certification and consistent quality make it suitable for critical applications where safety and performance are paramount.

Customers can order the ASCO solenoid valve with a minimum order quantity of just one unit, making it accessible for both small-scale projects and large productions. Pricing is negotiable, providing flexibility to meet various budget requirements. Packaging is done in cartons or as per client requirements, ensuring safe delivery. With a supply ability of 5000 pieces per month and a delivery time of 1-7 work days after payment, ASCO guarantees prompt fulfillment of orders.

Payment terms include T/T, Western Union, and PayPal, offering convenient options for international and domestic buyers. Overall, the ASCO electromagnetic valve series 551 is a versatile and high-quality solution for controlling fluid flow across a wide range of industries and applications.

Packing and Shipping:

The ASCO Solenoid Valve is carefully packaged to ensure maximum protection during transit. Each valve is securely placed in a custom-fitted foam insert within a sturdy cardboard box to prevent any movement or damage.

All products are sealed with anti-static wrapping and include protective caps on all ports to keep the valve clean and free from contaminants.

Shipping is handled through reliable carriers with tracking options available to ensure timely and safe delivery. Depending on the destination, we offer various shipping methods including standard, expedited, and overnight shipping.

For bulk orders, valves are packed in reinforced cartons with additional cushioning materials to withstand handling and transport stresses.

We also provide detailed shipping documentation including packing lists, certificates of conformity, and user manuals with each shipment to facilitate smooth receiving and installation.