SUN HYDRAULICS
DNDASLV71299
$204.52 USD
- SUN HYDRAULICS
- Material:DNDASLV71299
- Model:DNDA-SLV@71299
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DNDASLV71299 (DNDASLV71299) is a solenoid-operated 4-way, 2-position cartridge valve designed for directional control applications. This direct-acting, balanced spool valve features a soft shift capability that significantly reduces system shock during actuation. While the soft shift feature enhances smooth operation, it may result in slower response times compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on various factors such as flow and pressure. The valve's manual override control is push-type and not compatible with weatherized coils. It boasts a fatigue-rated solenoid tube assembly suitable for up to 5000 psi service and employs a wet armature design to optimize efficiency by using the working fluid for heat dissipation. The unique magnetic design ensures high efficiency with reliable performance, offering coil connector options rated up to IP69K for enhanced environmental protection. Built with Sun's floating style construction, the cartridge minimizes binding risks due to installation or machining variations. The valve fits into T31A cavities and operates at a capacity of 4 gpm (15 L/min), providing maximum leakage of 10 in\u00b3/min at 3000 psi. Its compact design includes a .75-inch solenoid tube diameter and requires an installation torque between 30-35 lbf ft (41-47 Nm). Ideal for applications needing reduced shock without critical timing requirements, this cartridge valve offers robust performance within its specified limits.
The Sun Hydraulics DNDASLV71299 (DNDASLV71299) is a solenoid-operated 4-way, 2-position cartridge valve designed for directional control applications. This direct-acting, balanced spool valve features a soft shift capability that significantly reduces system shock during actuation. While the soft shift feature enhances smooth operation, it may result in slower response times compared to standard solenoids, with typical times ranging from 150 ms to 300 ms depending on various factors such as flow and pressure. The valve's manual override control is push-type and not compatible with weatherized coils. It boasts a fatigue-rated solenoid tube assembly suitable for up to 5000 psi service and employs a wet armature design to optimize efficiency by using the working fluid for heat dissipation. The unique magnetic design ensures high efficiency with reliable performance, offering coil connector options rated up to IP69K for enhanced environmental protection. Built with Sun's floating style construction, the cartridge minimizes binding risks due to installation or machining variations. The valve fits into T31A cavities and operates at a capacity of 4 gpm (15 L/min), providing maximum leakage of 10 in\u00b3/min at 3000 psi. Its compact design includes a .75-inch solenoid tube diameter and requires an installation torque between 30-35 lbf ft (41-47 Nm). Ideal for applications needing reduced shock without critical timing requirements, this cartridge valve offers robust performance within its specified limits.
This solenoid-operated 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve with a soft shift feature. The soft shift feature greatly reduces system shock due to valve actuation.
- The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
- The soft shift feature can greatly reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
- The soft shift feature results in significant increase in response time over Sun's standard solenoid. Response time is dependant on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
- For consistent soft shift performance, port 1 should be at a positive pressure.
- This valve includes a push-type manual override control. Other manual control options such as T or D, cannot be ordered with the soft shift control but can be installed easily in the field. See Twist/Lock Manual Override link above for details. Please note: Manual override functionality is not compatible with weatherized coils.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- 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.
- 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.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete environmental protection.
- 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 | T-31A |
| Series | 1 |
| Capacity | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 in³/min.@3000 psi160 cc/min.@210 bar |
| Manual Override Force Requirement | 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1 |
| Manual Override Stroke | .10 in.2,5 mm |
| Solenoid Tube Diameter | .75 in.19 mm |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Model Weight | .60 lb0,30 kg |
| Seal kit - Cartridge | Viton: 990-431-006 |
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