SUN HYDRAULICS
DNDMLDN
$139.49 USD
- SUN HYDRAULICS
- Material:DNDMLDN
- Model:DNDM-LDN
- 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 DNDMLDN (DNDMLDN) is a manually operated, 2-position, 4-way directional cartridge valve designed for controlling the flow direction in hydraulic circuits. It features a direct-acting, balanced spool mechanism and incorporates Sun's Twist/Lock manual override system. This valve is intended for intermittent use, such as manual overrides, with a mechanical life expectancy of approximately 7,000 cycles. The momentary-twist control option allows users to temporarily shift the valve by twisting the knob clockwise and releasing it to return to its normal position. Alternatively, the detent-lock option lets operators shift the valve into a mechanically detented position by twisting counterclockwise; this position is maintained until twisted back clockwise. The dual-operation control combines both functionalities for versatile operation. It's important to note that the detented position is not suitable for load-holding applications but rather for temporary shifting purposes. The DNDMLDN cartridge uses EPDM seals compatible with phosphate ester fluids while being susceptible to damage from petroleum-based fluids and lubricants. Its design includes Sun's floating style construction to prevent internal binding due to excessive torque or machining variations. The valve fits into cavity T-31A and belongs to Series 1 with a capacity of 10 gpm (40 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It has an operating torque requirement of 10 lbf-in (1.2 Nm), a hex size of 7/8 inch (22.2 mm), and requires an installation torque between 30 - 35 lbf-ft (41 - 47 Nm). For maintenance, Viton seal kits are available under part number 990431006.
The Sun Hydraulics DNDMLDN (DNDMLDN) is a manually operated, 2-position, 4-way directional cartridge valve designed for controlling the flow direction in hydraulic circuits. It features a direct-acting, balanced spool mechanism and incorporates Sun's Twist/Lock manual override system. This valve is intended for intermittent use, such as manual overrides, with a mechanical life expectancy of approximately 7,000 cycles. The momentary-twist control option allows users to temporarily shift the valve by twisting the knob clockwise and releasing it to return to its normal position. Alternatively, the detent-lock option lets operators shift the valve into a mechanically detented position by twisting counterclockwise; this position is maintained until twisted back clockwise. The dual-operation control combines both functionalities for versatile operation. It's important to note that the detented position is not suitable for load-holding applications but rather for temporary shifting purposes. The DNDMLDN cartridge uses EPDM seals compatible with phosphate ester fluids while being susceptible to damage from petroleum-based fluids and lubricants. Its design includes Sun's floating style construction to prevent internal binding due to excessive torque or machining variations. The valve fits into cavity T-31A and belongs to Series 1 with a capacity of 10 gpm (40 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It has an operating torque requirement of 10 lbf-in (1.2 Nm), a hex size of 7/8 inch (22.2 mm), and requires an installation torque between 30 - 35 lbf-ft (41 - 47 Nm). For maintenance, Viton seal kits are available under part number 990431006.
This manually operated, 2-position, 4-way directional cartridge is a direct-acting, balanced spool valve used to control the direction of flow in a hydraulic circuit. Manual operation is achieved via Sun's Twist/Lock manual override mechanism and is designed for intermittent (infrequent) use only.
- This valve is designed for intermittent use such as a manual override. The manual control assembly has a mechanical life expectancy of approximately 7,000 cycles.
- The momentary/twist control option "T" allows the operator to momentarily shift the valve by twisting the knob clockwise and releasing. Once released, the valve returns to its normal position.
- The detent/lock control option "L" allows the operator to shift the valve into a mechanically detented position by twisting the knob counter-clockwise. This detented position will be maintained until the operator twists the knob clockwise and allows the valve to return to its normal position. Please note that the detented position is not intended for load holding applications but for temporary shifting only.
- The dual-operation control option "D" allows the operator to either shift the valve momentarily by twisting the knob clockwise or shift it into a mechanically detented postion by twisting counter-clockwise. Please note that the detented position is not intended for load holding applications but for temporary shifting only.
- The control on this valve is meant to be operated by a person's hand. The control should not be modified, for instance fastening a lever to the knob. Under no circumstances should the control be operated by other mechanical devices.
- Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- 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 | 10 gpm40 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 |
| Operating Torque | 10 lbf in.1,2 Nm |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Seal kit - Cartridge | Viton: 990-431-006 |
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