SUN HYDRAULICS
DMDATNV948
$240.76 USD
- SUN HYDRAULICS
- Material:DMDATNV948
- Model:DMDA-TNV@948
- 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 DMDATNV948 (DMDATNV948) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. It features a direct-acting, balanced spool design that ensures reliable control in hydraulic systems. This model is specially engineered to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve's rapid response time is typically around 50 ms, making it suitable for applications requiring quick actuation. The DMDATNV948 utilizes a wet armature design where the working fluid surrounds the armature, which can be critical in applications where the coil remains energized for extended periods. This design consideration helps manage the heat generated by the coil but requires careful selection of hydraulic fluids to avoid breakdown and varnish formation. The model is compatible with EPDM seals when used with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additional features include interchangeable coils with other Sun Series 1 solenoid products and a floating style construction that minimizes internal parts binding. The manual override mechanism provided on models with D or L control is designed for temporary actuation and has an expected mechanical life of about 7,000 cycles. This valve is particularly effective as pilot controls in systems where capacity is less critical but fast and consistent response times are necessary. The closed transition between spool positions enhances performance limits at the expense of lower capacity. Ideal for various high-pressure hydraulic applications, this valve stands out for its robust construction, versatile performance capabilities, and reliability in demanding operational conditions.
The Sun Hydraulics DMDATNV948 (DMDATNV948) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. It features a direct-acting, balanced spool design that ensures reliable control in hydraulic systems. This model is specially engineered to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve's rapid response time is typically around 50 ms, making it suitable for applications requiring quick actuation. The DMDATNV948 utilizes a wet armature design where the working fluid surrounds the armature, which can be critical in applications where the coil remains energized for extended periods. This design consideration helps manage the heat generated by the coil but requires careful selection of hydraulic fluids to avoid breakdown and varnish formation. The model is compatible with EPDM seals when used with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additional features include interchangeable coils with other Sun Series 1 solenoid products and a floating style construction that minimizes internal parts binding. The manual override mechanism provided on models with D or L control is designed for temporary actuation and has an expected mechanical life of about 7,000 cycles. This valve is particularly effective as pilot controls in systems where capacity is less critical but fast and consistent response times are necessary. The closed transition between spool positions enhances performance limits at the expense of lower capacity. Ideal for various high-pressure hydraulic applications, this valve stands out for its robust construction, versatile performance capabilities, and reliability in demanding operational conditions.
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.
- The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
- Spools B and R are closed in the transition between their two positions. This results in a higher performance limit at the expense of lower capacity. When used as pilot controls, where capacity is not a factor, the closed transition will provide faster and more consistent response times.
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- 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 assembly has a mechanical life expectancy of approximately 7,000 cycles.
- 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.
- Coils are interchangeable with other Sun Series 1 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.
| Cavity | T-11A |
| Series | 1 |
| Capacity | 12 gpm45 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 50 ms50 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@3000 psi80 cc/min.@210 bar |
| Switching Frequency | 15000 cycles/hr15000 cycles/hr |
| 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: 990-411-006 |
| Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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