The ASCO Series 321 valves offer rapid venting to 0 psi via their external orifice, enabling swift shifting of control valves through quick air exhaustion. These pilot-operated valves feature resilient seated poppets ensuring tight shutoff. Ideally suited for refining, chemical, and food and beverage sectors, these valves are designed for applications needing efficient exhaust capabilities.

Key features and benefits of the ASCO™ Series 321 Solenoid Valves

Key Features

The ASCO™ Series 321 solenoid valves are designed to accommodate a wide range of voltages, making them versatile for various applications. Additionally, they are built to withstand harsh environmental conditions such as extreme temperatures, moisture, dust, and other challenging factors, ensuring reliable performance even in demanding industrial settings.

Key Features

The latest generation of solenoid models in the ASCO™ Series 321 offers significant advancements in energy efficiency. These models are engineered to reduce power consumption, which contributes to lower operational costs. They also support higher operating temperatures for both AC and DC power, enhancing their versatility in different systems.

Key Features

The ASCO™ Series 321 solenoid valves are designed for maximum flexibility when it comes to installation. They can be mounted in any position, allowing for greater ease of integration into existing systems without compromising performance. This feature provides adaptability in a variety of industrial and commercial applications, making installation both efficient and convenient.


Valve Actuation:	Solenoid - Air Pilot
Body Material:	Brass, Stainless Steel
Media:	Air, Inert Gas, Light Oil, Water
Pipe / Port Size:	1/4 "; 3/8 "
Port Type:	NPTF
Function:	3 way - 3/2 Normally Closed, 3 way - 3/2 Normally Open
Flow:	From .05-.1 Cv, From 0.1 Cv to 0.5 Cv, From .43 to .86 Kv, From .86 to 1.73 Kv
Operating Environment:	Corrosive, Indoor, Outdoor
Standards / Regulations:	ATEX Zone 1-21, ATEX Zone 2-22, CSA, IEC Ex Zone 1-21, SIL, Type 1, Type 2, Type 3, Type 3S, Type 4, Type 4X, Type 6, Type 6P, Type 7, Type 9, UL

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MANUAL

The ASCO™ Series 321 Solenoid Valves are commonly used in refining, chemical processing, and food and beverage industries. They are ideal for applications that require rapid venting of air and quick exhaust functions.

These valves are designed to work with air, inert gases, light oil, and water, making them versatile for various industrial applications.

The ASCO™ Series 321 Solenoid Valves are available in 1/4" and 3/8" NPTF port sizes, allowing flexibility in different system configurations.

The ASCO™ Series 321 operates using a solenoid air pilot mechanism, ensuring efficient control and rapid response in critical operations.

The flow rate ranges from .05 to 1.73 Kv, making it suitable for both low and high-flow requirements depending on the application.

Yes, these valves are designed to function in both indoor and outdoor corrosive environments, supported by robust materials like brass and stainless steel.

The valves support a wide range of voltage options, including 100-240 AC/DC, 12-24 DC, 120 AC, 24 AC, 110 AC, and 250 DC, catering to diverse power supply needs.

These valves are certified for ATEX Zone 1-21 and 2-22, CSA, IEC Ex Zone 1-21, SIL, and UL standards, ensuring safe use in hazardous and industrial environments.

The body is available in either brass or stainless steel, providing options based on the application’s specific material requirements.

The Series 321 Solenoid Valves come in 3-way/3-2 normally closed and normally open configurations, making them adaptable for different control needs.

The valves are designed with external orifices for rapid air venting, enabling quick shifts in control valves and supporting applications where fast response times are critical.

Please feel free to request information and advice using the form below or call us on 0151 547 1221

ASCO™ Series 321 Solenoid Valves