SUN HYDRAULICS
DMDAMNN248
$195.38 USD
- SUN HYDRAULICS
- Material:DMDAMNN248
- Model:DMDA-MNN@248
- 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 DMDAMNN248 (DMDAMNN248) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is specifically 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 DMDAMNN248 features closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. This valve is uniquely designed with a wet armature setup, allowing the working fluid to surround the armature which helps in managing the heat generated by the coil. However, this design requires consideration of the fluid type used; for instance, water-glycol mixtures may degrade at high temperatures. The DMDAMNN248 is equipped with EPDM seals making it compatible with phosphate ester fluids but not with petroleum-based fluids which can damage these seals. Additionally, the model offers flexibility in manual operation with a detent mechanism in its manual override for temporary actuation and boasts a mechanical life expectancy of about 7,000 cycles. Its solenoid coils are interchangeable within Sun Series 1 solenoid products and can be mounted in either direction on the tube. The construction incorporates Sun's floating style to minimize internal part binding due to installation variances or torque. The DMDAMNN248 also provides rapid switching capabilities up to 15,000 cycles per hour and features minimal valve leakage at high pressures. With its robust design and versatile specifications, this valve addresses demanding hydraulic control applications effectively while ensuring reliability and durability.
The Sun Hydraulics DMDAMNN248 (DMDAMNN248) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is specifically 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 DMDAMNN248 features closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. This valve is uniquely designed with a wet armature setup, allowing the working fluid to surround the armature which helps in managing the heat generated by the coil. However, this design requires consideration of the fluid type used; for instance, water-glycol mixtures may degrade at high temperatures. The DMDAMNN248 is equipped with EPDM seals making it compatible with phosphate ester fluids but not with petroleum-based fluids which can damage these seals. Additionally, the model offers flexibility in manual operation with a detent mechanism in its manual override for temporary actuation and boasts a mechanical life expectancy of about 7,000 cycles. Its solenoid coils are interchangeable within Sun Series 1 solenoid products and can be mounted in either direction on the tube. The construction incorporates Sun's floating style to minimize internal part binding due to installation variances or torque. The DMDAMNN248 also provides rapid switching capabilities up to 15,000 cycles per hour and features minimal valve leakage at high pressures. With its robust design and versatile specifications, this valve addresses demanding hydraulic control applications effectively while ensuring reliability and durability.
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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