The ASCO Series 220 steam and hot water valves deliver up to 60% more flow compared to similar products on the market. This enhancement means a 3/4-inch ASCO valve can match the flow rate of competing 1-inch valves. Equipped with a floating PTFE diaphragm, the Series 220 ensures reliable sealing and offers longevity—lasting up to four times longer than other valves. Additionally, the threaded bonnet is designed for easy removal, facilitating swift inspections and maintenance, thus minimising downtime and reducing service costs.

Key features and benefits of ASCO™ Series 220 Steam and Hot Water Solenoid Valves

Key Features

These valves are designed to offer extended durability, having undergone rigorous testing to ensure longevity. They are capable of performing up to 1 million cycles when operating with hot water and 50 psi steam, and up to 500,000 cycles when handling higher pressure levels, such as 125 psi steam. This high cycle count ensures dependable performance over a long period, even in demanding environments.

Key Features

The design of these valves incorporates a smaller operator, which results in lower energy consumption. This feature is particularly beneficial for applications with a 5 psi differential pressure, where reduced power usage can lead to energy savings while maintaining effective operation. This makes the valves an efficient solution for industrial applications.

Key Features

The DC versions of these valves are designed for quieter operation. They function efficiently with 0 psi differential pressure on hot water and 50 psi steam, making them suitable for applications where both noise reduction and effective performance are priorities. This ensures a smoother, quieter operation without sacrificing performance or reliability.


Valve Actuation:	Solenoid
Body Material:	Brass
Media:	Hot Water, Steam
Pipe / Port Size:	1/2 "; 3/8 "; 3/4 "; 1 "; 1 1/4 "; 1 1/2 "; 2 "; 2 1/2 "
Port Type:	NPTF
Function:	2 way - 2/2 Normally Closed, 2 way - 2/2 Normally Open
Flow:	From 2.0 Cv to 6.0 Cv, From 6.0 Cv to 14.0 Cv, Over 14.0 Cv
Voltage:	110 AC, 12 DC, 120 AC, 120 DC, 208 AC, 220 AC, 24 DC, 24 AC, 240 AC, 48 DC, 480 AC - 50, 50/60, 60
Operating Environment:	Hazardous, Indoor, Outdoor, Washdown
Standards / Regulations:	CSA, 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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The ASCO™ Series 220 offers up to 60% more flow than similar valves, with a 3/4-inch valve matching the flow rate of a 1-inch valve. Its floating PTFE diaphragm ensures reliable sealing and up to four times the lifespan of competing valves.

The ASCO™ Series 220 delivers up to 60% more flow, allowing smaller valves, like the 3/4-inch, to match the flow rate of larger 1-inch models, improving system efficiency.

The ASCO™ Series 220 features a brass body, providing durability and reliability in steam and hot water applications.

The ASCO™ Series 220 comes in port sizes ranging from 3/8" to 2 1/2", offering flexibility for various applications.

The ASCO™ Series 220 is designed for hot water and steam, making it ideal for heating and steam-based processes.

With its threaded bonnet design, the ASCO™ Series 220 allows for quick and easy removal, reducing downtime and maintenance costs.

The ASCO™ Series 220 is compatible with a wide range of voltages, including 110 AC, 240 AC, 24 DC, and many more.

The ASCO™ Series 220, equipped with a floating PTFE diaphragm, lasts up to four times longer than comparable valves.

The ASCO™ Series 220 is available as a 2-way, normally closed or normally open valve for various control needs.

Yes, the ASCO™ Series 220 meets CSA and UL standards and is rated for hazardous environments, including Type 1, 4X, 6P, and others.

The ASCO™ Series 220’s floating PTFE diaphragm ensures a reliable seal, even in high-temperature steam and hot water applications.

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

ASCO™ Series 220 Steam and Hot Water Solenoid Valves