SUN HYDRAULICS
DNDMDDN
$139.49 USD
- SUN HYDRAULICS
- Material:DNDMDDN
- Model:DNDM-DDN
- 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 DNDMDDN (DNDMDDN) is a manually operated, 2-position, 4-way directional cartridge valve designed for controlling the direction of flow in hydraulic circuits. This direct-acting, balanced spool valve features Sun's TwistLock manual override mechanism, making it suitable for intermittent and infrequent use. It offers multiple control options: the momentary-twist option allows temporary shifting by twisting the knob clockwise and releasing it to return to its normal position; the detent-lock option enables a mechanically detented position when twisted counterclockwise, which is not intended for load holding but temporary shifting; and the dual-operation option combines both functionalities. The valve is intended for hand operation only and should not be modified with mechanical devices. It incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. This valve fits a T-31A cavity, with a capacity of 10 gpm (40 L/min) and can handle a maximum operating pressure of 5000 psi (350 bar). The maximum leakage at 110 SUS (24 cSt) is 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The operating torque required is 10 lbf\u00b7in (1.2 Nm), with an installation torque range of 30-35 lbf\u00b7ft (41-47 Nm). It uses Viton seals, with an available seal kit part number of 990431006. Cartridges with EPDM seals should only be used in systems with phosphate ester fluids, as petroleum-based fluids can damage these seals.
The Sun Hydraulics DNDMDDN (DNDMDDN) is a manually operated, 2-position, 4-way directional cartridge valve designed for controlling the direction of flow in hydraulic circuits. This direct-acting, balanced spool valve features Sun's TwistLock manual override mechanism, making it suitable for intermittent and infrequent use. It offers multiple control options: the momentary-twist option allows temporary shifting by twisting the knob clockwise and releasing it to return to its normal position; the detent-lock option enables a mechanically detented position when twisted counterclockwise, which is not intended for load holding but temporary shifting; and the dual-operation option combines both functionalities. The valve is intended for hand operation only and should not be modified with mechanical devices. It incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. This valve fits a T-31A cavity, with a capacity of 10 gpm (40 L/min) and can handle a maximum operating pressure of 5000 psi (350 bar). The maximum leakage at 110 SUS (24 cSt) is 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The operating torque required is 10 lbf\u00b7in (1.2 Nm), with an installation torque range of 30-35 lbf\u00b7ft (41-47 Nm). It uses Viton seals, with an available seal kit part number of 990431006. Cartridges with EPDM seals should only be used in systems with phosphate ester fluids, as petroleum-based fluids can damage these seals.
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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