General Purpose, Quick Exhaust, and Selectable NO/NC Models
Rugged NEMA 4 (IP65) Housing
Mounts in Any Position
Rated for Continuous Duty
Mobile Equipment, Gas Sampling, Compressors, Ball Valve Actuators, Cylinders, Dispensing, Laundry Equipment, Machine Tool Equipment
The SV241, SV242, and SV261 Series valves are 3-way, direct acting, and normally closed. The SV241 and SV242 can be used for liquids or gases, while the SV261 offers a quick-exhaust feature and is limited to air use. The most common application for these 3-way valves is the control of single-acting cylinders or spring-return actuators. The pressure inlet port is blocked in the de-energized position.
A 3-way normally closed valve has 3 ports labeled 1, 2, and 3. When de-energized, no flow occurs from port 1, but there is flow from port 2 to 3. When energized, flow occurs from port 1 to 2, but no flow occurs from port 3. Usually, 3-way valves are used to control larger pneumatically activated valves. Port 1 is connected to the pressure source, port 2 is connected to the cylinder controlling the pneumatic activation, and port 3 is the exhaust port vented to the room.
The SV251 is a multipurpose 3-way valve and can be used as normally open or normally closed. During installation, for normally closed select port 1 as supply pressure. Port 2 is connected to the pneumatic cylinder, and port 3 is the exhaust port. To configure as normally open, select port 3 as supply pressure. Port 2 is connected to the pneumatic cylinder, and port 1 is the exhaust port. The SV251 can be used for liquids or gases.
The SV271 is a 4-way, 5-ported solenoid valve, rated for air applications only. It is a 2- position, pilot-operated valve typically used to control doubleacting cylinders or pneumatic actuators. A 4-way valve has ports labeled 1, 2, 3, 4, and 5. When de-energized, pressure is supplied to port 1, which is open to cylinder port 4 and closed to cylinder port 2. Port 4 is closed to exhaust port 3. When energized, pressure port 1 is closed to cylinder port 4 and open to cylinder port 2. Cylinder port 2 is closed to exhaust port 3. Cylinder port 4 is open to exhaust port 5.
SPECIFICATIONS Operation: SV241, SV242 and SV251: Direct acting SV261, SV271: Pilot operated Wetted Parts: Brass, Stainless steel, copper, and seal SV241: Also acetal SV271: Aluminum, acetal, stainless steel, copper and seal Medium: Liquid or gases as specified in "To Order" chart Max Static Pressure: 5 times max psid Ambient Temp: -9 to 50°C (15 to 122°F) Mounting: Pipe mounting, any direction Power: 10 W, 120 Vac coils, 50 to 60 Hz
† Todos los productos en este sitio se muestran en la moneda de EE.UU. Ejemplo de pedido: (1) SV251 3-way direct-acting valve, user-selectable NO/NC with brass body and 5/64, USD$210.00