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SUN HYDRAULICS
DNDMTDN


$139.49 USD
  • SUN HYDRAULICS
  • Material:DNDMTDN
  • Model:DNDM-TDN
  • Summary:Cartridge

Quantity in stock: 0

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***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 DNDMTDN (DNDMTDN) is a manually operated, 2-position, 4-way directional cartridge valve designed for controlling the direction of flow in hydraulic circuits. It features a direct-acting, balanced spool valve mechanism and is intended for intermittent use. The manual operation is facilitated through Sun's Twist-Lock manual override system, which provides different control options based on the operator's needs. The momentary-twist control option allows temporary shifting by twisting the knob clockwise and releasing it, while the detent-lock option enables a mechanically detented position by twisting counterclockwise. Additionally, a dual-operation control option offers both momentary and detent capabilities; however, the detented position should not be used for load holding applications. This cartridge valve incorporates Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations in cavity or cartridge design. It operates within a capacity of 10 gpm (40 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage with a maximum of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). For optimal performance, EPDM seals are recommended when using phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The DNDMTDN fits into a T-31A cavity and requires an installation torque between 30 - 35 lbf ft (41 - 47 Nm). The mechanical life expectancy of its manual control assembly is approximately 7,000 cycles. To maintain integrity and functionality, operators should only use hand manipulation without attaching additional mechanical devices to the control knob.

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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