ASCO™ Piston Solenoid Valves

The ASCO™ Series 290 and 344 Piston Solenoid Valves are designed for demanding applications involving aggressive fluids, air, steam, fuel oil, and hot water. The Series 290 offers 2-way (Normally Closed or Open) options, accommodating pipe sizes from 3/8” to 2 1/2” and flow rates from 2.0 Cv to over 14.0 Cv, meeting RoHS, Type 4, and Type 4X standards. The Series 344 provides precise control for air, inert gas, light oils, and water, with flow rates from 0.05 to 5.19 Kv and approvals for hazardous zones.

ASCO™ Series 290 Piston Solenoid Valves

The ASCO™ Series 290 Piston Solenoid Valves are pressure-operated, direct-acting angle-body valves suited for tough applications with aggressive fluids, air, steam, fuel oil, and hot water. Available in resilient bronze or stainless steel, they provide 2-way options (Normally Closed or Open) and fit pipe sizes from 3/8” to 2 1/2” with NPTF ports. With flow rates ranging from 2.0 Cv to over 14.0 Cv, they are ideal for indoor and outdoor settings and conform to RoHS, Type 4, and Type 4X standards.

Media: Aggressive Liquids/Gases, Air, Inert Gas, Fuel Oil, Hot Water, Light Oil, Oxygen, Steam, Water
Pipe / Port Size: 1/2 "; 3/8 "; 3/4 "; 1 "; 1 1/4 "; 1 1/2 "; 2 "; 2 1/2 "
Flow: From 2.0 Cv to 6.0 Cv, From 6.0 Cv to 14.0 Cv, Over 14.0 Cv
Function: 2 way - 2/2 Normally Closed, 2 way - 2/2 Normally Open
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ASCO™ Series 344 Piston / Poppet Solenoid Valves

The ASCO™ Series 344 Piston Solenoid Valves deliver precise, solenoid-driven, direct-acting control with a sturdy brass build, suitable for diverse media including air, inert gases, light oils, and water. Available in pipe sizes from 1/4" to 1" NPTF with a 4-way, 4/2 function, these valves support flow rates from 0.05 to 5.19 Kv. They meet ATEX and IEC Ex standards for Zones 0 to 20, as well as Class I Division 1 to 2, ensuring suitability for demanding industrial settings both indoors and outdoors.

Media: Air, Inert Gas, Light Oil, Water
Pipe / Port Size: 1/4 "; 1/2 "; 3/8 "; 3/4 "; 1 "
Flow: 0.05 to 0.1 Cv & 0.43 to 5.19 Kv
Function: 4 way - 4/2
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Frequently Asked Questions

A piston solenoid valve is an electrically controlled valve that uses a piston to open or close fluid flow. These valves are designed to handle higher pressures and flow rates, making them ideal for applications in gas and fluid control.

A piston solenoid valve operates by using an electromagnetic coil that, when energized, moves a piston inside the valve body. This action opens or closes the valve, controlling the flow of fluid or gas through the system.

Piston solenoid valves are commonly used in industries requiring high-pressure and high-flow control, such as in water treatment, HVAC, oil and gas, and chemical processing.

Piston solenoid valves are typically made from durable materials like stainless steel, brass, or aluminum. The choice of material depends on the application's compatibility with the fluids or gases involved.

Piston solenoid valves offer high-pressure handling capabilities, reliability under demanding conditions, and efficient control of large flow rates, making them ideal for industrial applications.

The pressure rating of piston solenoid valves varies by model but can typically handle pressures from 10 to 200 bar. Always consult the valve specifications to ensure compatibility with the application's pressure requirements.

Yes, piston solenoid valves are designed to operate under high-temperature conditions, with some models capable of handling temperatures above 200°C. Check the specific valve model for its temperature rating.

Many piston solenoid valves are built with corrosion-resistant materials, making them suitable for handling aggressive media such as acids, alkalis, and other chemical substances.

To choose the right piston solenoid valve, consider factors like media type, pressure, temperature, flow rate, and material compatibility. Consulting with a valve specialist can ensure an optimal selection for your needs.

Piston solenoid valves generally require minimal maintenance, but regular inspections, cleaning of the coil and piston, and checking for wear or damage can prolong their operational life.

Piston solenoid valves are energy-efficient as they only require power when actuated. Some designs offer lower power consumption options, ideal for continuous use applications.

Yes, piston solenoid valves are versatile and can handle both liquids and gases, depending on the design specifications. Always verify the compatibility of the valve with the specific medium used in your application.

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ASCO™ Piston Solenoid Valves