3-way, solenoid-operated directional spool valve - pilot capacity
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool pilot valve used to pilot other full-flow valves. The valve is normally open between port 1 and port 2 or port 1 and port 3 and all flow paths are bidirectional.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- Highly efficient tube design requires only 12 Watts to shift the valve.
- Valves exhibit extremely low leakage rates; less than 10 drops/min. @ 5000 psi (0,7 cc/min @ 350 bar).
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- Coils are interchangeable with other Sun Series P pilot solenoid products and can be mounted on the tube in either direction.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
|Capacity||.25 gpm1 L/min.|
|Maximum Operating Pressure||5000 psi350 bar|
|Maximum Valve Leakage at 110 SUS (24 cSt)||10 drops/min.@5000 psi0,7 cc/min.@350 bar|
|Manual Override Force Requirement||10 lbs/1000 psi @ Port 166 N/100 bar @ Port 1|
|Response Time - Typical||30 ms30 ms|
|Switching Frequency||15,000 max. cycles/hr15,000 max. cycles/hr|
|Solenoid Tube Diameter||.56 in.14,2 mm|
|Valve Hex Size||7/8 in.22,2 mm|
|Valve Installation Torque||20 - 25 lbf ft27 - 33 Nm|
|Model Weight||.40 lb0,20 kg|
|Seal kit - Cartridge||Buna: 990009007|
|Seal kit - Cartridge||EPDM: 990309014|
|Seal kit - Cartridge||Polyurethane: 990009002|
|Seal kit - Cartridge||Viton: 990009006|
|Seal and nut kit - Coil||Viton: 990760006|
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.
- An additional 2.00 inches (50,8 mm) beyond the valve extension is needed for coil installation and removal.
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