SUN HYDRAULICS
DNDMDDV
$148.42 USD
- SUN HYDRAULICS
- Material:DNDMDDV
- Model:DNDM-DDV
- 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 DNDMDDV (DNDMDDV) 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 employs Sun's Twist-Lock manual override mechanism for manual operation, specifically intended for intermittent and infrequent use. The valve offers several control options: the momentary-twist control (T) allows temporary shifting by twisting the knob clockwise, returning to its original position upon release; the detent-lock control (L) enables shifting into a mechanically detented position by twisting counterclockwise, which remains until twisted back; and the dual-operation control (D) combines both functionalities. However, it is important to note that the detented position is not suitable for load holding but only for temporary shifts. The valve's mechanical life expectancy is approximately 7,000 cycles. This cartridge features Sun's floating style construction to minimize internal binding due to installation torque or machining variations. The DNDMDDV model fits cavity T-31A and belongs to Series 1 with a capacity of up to 10 gpm (40 L/min). It operates at a maximum pressure of 5000 psi (350 bar) with leakage rates capped at 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The operating torque required is 10 lbf-in. (1.2 Nm), and it requires an installation torque of between 30-35 lbf-ft (41-47 Nm). For systems using phosphate ester fluids, cartridges with EPDM seals are recommended as exposure to petroleum-based fluids can damage these seals.
The Sun Hydraulics DNDMDDV (DNDMDDV) 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 employs Sun's Twist-Lock manual override mechanism for manual operation, specifically intended for intermittent and infrequent use. The valve offers several control options: the momentary-twist control (T) allows temporary shifting by twisting the knob clockwise, returning to its original position upon release; the detent-lock control (L) enables shifting into a mechanically detented position by twisting counterclockwise, which remains until twisted back; and the dual-operation control (D) combines both functionalities. However, it is important to note that the detented position is not suitable for load holding but only for temporary shifts. The valve's mechanical life expectancy is approximately 7,000 cycles. This cartridge features Sun's floating style construction to minimize internal binding due to installation torque or machining variations. The DNDMDDV model fits cavity T-31A and belongs to Series 1 with a capacity of up to 10 gpm (40 L/min). It operates at a maximum pressure of 5000 psi (350 bar) with leakage rates capped at 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The operating torque required is 10 lbf-in. (1.2 Nm), and it requires an installation torque of between 30-35 lbf-ft (41-47 Nm). For systems using phosphate ester fluids, cartridges with EPDM seals are recommended as exposure to 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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