SUN HYDRAULICS
DMDAZRN812
$751.55 USD
- SUN HYDRAULICS
- Material:DMDAZRN812
- Model:DMDA-ZRN@812
- 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 DMDAZRN812 (DMDAZRN812) is a solenoid-operated 3-way, 2-position cartridge valve notable for its direct-acting, balanced spool directional control capabilities. This model features a closed transition between positions, significantly reducing oil loss during shifting\u2014a critical advantage in pilot control circuits. The inclusion of a position switch offers reliable confirmation that the valve remains in its spring-biased position, enhancing operational certainty. Designed for robust performance, the DMDAZRN812 boasts a fatigue rating of 5000 psi (350 bar) for the solenoid tube assembly and requires no minimum hydraulic pressure to operate. It is engineered with a wet armature design where the working fluid surrounds the armature. This design consideration is vital as it exposes the fluid to heat generated by the coil which can be significant if the coil remains energized over extended periods. The cartridge\u2019s configuration options include various coil terminations and voltage choices, with optional surge protection to suit diverse application needs. Its magnetic design enhances efficiency by delivering high spool actuating force per Watt expended, ensuring reliable valve shifting. Furthermore, this model incorporates Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. This valve is specifically configured with EPDM seals appropriate for systems using phosphate ester fluids; however, these seals are susceptible to damage when exposed to petroleum-based fluids. For installation, specific tools such as a crow's foot wrench are required due to the position switch design which obstructs the use of a deep socket wrench. Note that any tampering with this factory-set sealed unit voids its warranty and necessitates factory return for any service or modification needs.
The Sun Hydraulics DMDAZRN812 (DMDAZRN812) is a solenoid-operated 3-way, 2-position cartridge valve notable for its direct-acting, balanced spool directional control capabilities. This model features a closed transition between positions, significantly reducing oil loss during shifting\u2014a critical advantage in pilot control circuits. The inclusion of a position switch offers reliable confirmation that the valve remains in its spring-biased position, enhancing operational certainty. Designed for robust performance, the DMDAZRN812 boasts a fatigue rating of 5000 psi (350 bar) for the solenoid tube assembly and requires no minimum hydraulic pressure to operate. It is engineered with a wet armature design where the working fluid surrounds the armature. This design consideration is vital as it exposes the fluid to heat generated by the coil which can be significant if the coil remains energized over extended periods. The cartridge\u2019s configuration options include various coil terminations and voltage choices, with optional surge protection to suit diverse application needs. Its magnetic design enhances efficiency by delivering high spool actuating force per Watt expended, ensuring reliable valve shifting. Furthermore, this model incorporates Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. This valve is specifically configured with EPDM seals appropriate for systems using phosphate ester fluids; however, these seals are susceptible to damage when exposed to petroleum-based fluids. For installation, specific tools such as a crow's foot wrench are required due to the position switch design which obstructs the use of a deep socket wrench. Note that any tampering with this factory-set sealed unit voids its warranty and necessitates factory return for any service or modification needs.
This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The transition between positions is closed. The closed transition greatly reduces the loss of oil when shifting which can be of particular importance in pilot control circuits.
The position switch provides confirmation that the valve is in the spring biased position.
- A coil must be ordered with this cartridge. This cartridge is supplied as a sealed, factory set unit and is not field serviceable. If the assembly requires changes or service it needs to be returned to the factory. Any tampering will violate the product warranty.
- Position switch is CE approved.
- When torquing this cartridge into its cavity, a crow's foot wrench or similar will be required since the position switch precludes the use of a deep socket wrench.
- 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.
- 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.
- 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 |
| 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 | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-411-006 |
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