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Pilot-operated, normally closed, electro-proportional throttle with reverse flow check - (740 Series)
Cavity: T-18A | Capacity:
Technical specifications
This valve is a pilot-operated, normally closed, electro-proportional throttle with reverse free-flow check. Energizing the coil generates an opening force on the pilot stage which vents the main stage poppet to open proportionally. Metered flow is from port 1 to port 2 with reverse free flow from port 2 to port 1.
- Capable of operating with pressures up to 5000 psi (350 bar).
- Coils are interchangeable with Sun's other full flow, solenoid-operated valves and can be mounted on the tube in either direction.
- For optimum performance, an amplifier with current sensing and adjustable dither should be used. Dither should be adjustable between 100 - 250 Hz.
- Capacities rated at 200 psi (14 bar) differential and maximum rated coil current.
- Depending on circuit requirements, a reverse free flow check bypassing the compensator may be needed when using the FPHK with an external compensator.
- 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.
- Coils are interchangeable with Sun's other full flow, solenoid-operated valves.
- Depending on circuit requirements, a reverse free flow check bypassing the compensator may be needed when using the FPJP with an external compensator.
- Cavity
- Series
- Capacity114 gpm
- Maximum Operating Pressure5000 psi
- Recommended dither frequency140 Hz
- Deadband, nominal (as a percentage of input)25%
- Maximum Valve Leakage at 110 SUS (24 cSt)20 drops/min.@5000 psi
- Valve Hex Size1 5/8 in.
- Valve Installation Torque350 - 375 lbf ft
- Model Weight2.36 lb
- Seal and nut kit - Coil
- Seal kit - Cartridge
- Seal kit - Cartridge
Model CAD Files
Symbol CAD Files
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