Asco 2-way Solenoid valves have one inlet and one outlet pipe connection and are used primarily to permit and shut off fluid flow.The two types of operations are “Normally Closed” and “Normally Open”.
Two Types of Operations Apply |
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Normally Closed |
Normally Open |
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| Fluid is shut off when the coil is de-energized, flows through the valve when the coil is energized. | Fluid flow through the valve when the coil is de-energized, shuts off when the coil is energized | ||
Two Types of Constructions Apply |
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Direct Acting |
Internally Piloted |
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| When the solenoid is energized, the core directly opens the orifice of a Normally Closed valve or closes the orifice in a Normally Open valve. The valve will operate at pressures from 0 psi to its rated maximum. The force needed to open the valve is proportional to the orifice size and fluid pressure. As orifice size increases, so does the required force. To open larger orifices without increasing solenoid size, internal pilots are used. | These valves use line pressure to assist operation. When the coil is de-energized (on a Normally Closed valve), the pilot orifice is closed and line pressure is applied to the top of the piston or diaphragm through the bleed orifice, closing the valve. When the coil is energized, the core opens the pilot orifice, relieving pressure from the diaphragm or piston. Line pressure, alone, opens the valve by lifting the diaphragm or piston off the main orifice. |
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Standard Optional Features |
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| Solenoid valves are supplied, as listed, with either Red-Hat II molded epoxy solenoids or Red-Hat solenoids with metal enclosures. Red-Hat II valves are identified by the letter "G" or "H" in their catalog numbers e.g., 8030G16. Many optional features may be added to your valves; e.g., high-temperature Class H molded coils, manualoperators, and metering devices. See the Optional Features Section for details. | |||
2 Way/2 Position Valve Flow Diagrams |
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Index |
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 8260 Series - Air and Water 2-Way Solenoid Valves |
 8262/8263 Series - General Service 2-Way Solenoid Valves |
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 8290 Series - Angle Body Piston Valves |
 8015/8025 Series - Manual Reset Solenoid Valves |
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 Shielded Core 2-Way Solenoid Valves |
 CRYO/LCO2 Series - Cryogenic Service and Liquid 2CO2Solenoid Valves |
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 Vacuum Valves Series - Low, Medium and High Vacuum Serviceve 2Way Solenoid Valve Vacuum Valves Series - Low, Medium and High Vacuum Service |
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[Asco 2-way solenoid valves] [low pressure solenoid valves] [general service solenoid valves] [angle body piston valves] [Asco 3 way Solenoid valves] [air and water Solenoid valves] [quick exhaust Solenoid valves] [high flow valves] [Asco 4 way Solenoid valves] [miniature directional controle valves] [2 piston air only Solenoid valves] [pad mounted pilot valves] [ASCO Temperature & Pressure Switches] [Asco pressure sensors] [Asco steam valves] [Asco combustion valves] [Asco posiflow valves] [pneumatic controls]