Value Series, 2-way, solenoid-operated directional poppet - valve 3600 psi (250 bar)
This solenoid-operated 2-way, 2-position cartridge is a direct-acting, poppet-style directional valve. The valve is available in either a normally open or normally closed configuration. Due to the poppet style construction, this valve has extremely low leakage.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- This valve is suitable for load holding applications when using the Normally Closed option. In the event of power failure, the valve will spring closed.
- The solenoid tube assembly is fatigue rated for 3600 psi (250 bar) service.
- 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 exhibits extremely low leakage rates; less than 10 drops/min. @ 3000 psi (0,7 cc/min @ 210 bar).
- 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.
- 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||8 gpm30 L/min.|
|Maximum Operating Pressure||3600 psi250 bar|
|Response Time - Typical||50 ms50 ms|
|Maximum Valve Leakage at 110 SUS (24 cSt)||10 drops/min.@3000 psi0,7 cc/min.@210 bar|
|Switching Frequency||15000 cycles/hr15000 cycles/hr|
|Manual Override Force Requirement||10 lbs/1000 psi @ Port 166 N/100 bar @ Port 1|
|Manual Override Stroke||.10 in.2,5 mm|
|Solenoid Tube Diameter||.50 in.12,7 mm|
|Valve Hex Size||7/8 in.22,2 mm|
|Valve Installation Torque||30 - 35 lbf ft41 - 47 Nm|
|Model Weight||.35 lb0,15 kg|
|Seal kit - Cartridge||Buna: 990413007|
|Seal kit - Cartridge||EPDM: 990413014|
|Seal kit - Cartridge||Polyurethane: 990413002|
|Seal kit - Cartridge||Viton: 990413006|
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.
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
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