Model: DLDF
2-way, solenoid-operated directional spool valve (740 Series)
Cavity: T-13A | Capacity:
Technical specifications
This solenoid-operated 2-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The valve is available in either a normally open or normally closed configuration and is designed to be used with 740 and 747 Series coils.
- 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.
- 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.
- All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
- This cartridge utilizes both 740 Series high-power and 747 Series hazardous location coils.
- This cartridge has an option for manual override. See the CONFIGURATION section.
- On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control assemblies have a mechanical life expectancy of approximately 7,000 cycles.
- A FULL DATA SHEET is available for this model using the link at the top of the page.
- 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.
- The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
- Coils 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.
- Cavity
- Series
- Capacity12 gpm
- Maximum Operating Pressure5000 psi
- Manual Override Force Requirement5 lbs/1000 psi @ Port 1
- Manual Override Stroke.10 in.
- Maximum Valve Leakage at 110 SUS (24 cSt)5 in³/min.@3000 psi
- Response Time - Typical50 ms
- Switching Frequency15,000 max. cycles/hr
- Solenoid Tube Diameter.63 in.
- Valve Hex Size7/8 in.
- Valve Installation Torque30 - 35 lbf ft
- Model Weight.65 lb
- Seal kit - Cartridge
- Seal kit - Cartridge
What parts of the Sun cartridge valve are field serviceable?
How big is a drop of hydraulic oil?
Direct acting or pilot operated - what do I use?
- Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
Highlights
Technical Tips
Technical Information
- 991283 740 Series momentary/twist operation, manual override control kit, T control
- 991284 740 Series detent/lock operation, manual override control kit, L control
- 991285 740 Series dual twist/lock operation, manual override control kit, D control
- 991301 740 Series, red momentary/twist operation, manual override control kit, T control
- 991302 740 Series, red detent/lock operation, manual override control kit, L control
- 991303 740 Series, red dual twist/lock operation, manual override control kit, D control
- DLDFS 2-way, soft shift, solenoid-operated directional spool valve (740 Series)