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SUN HYDRAULICS
DNDMLYV


$148.42 USD
  • SUN HYDRAULICS
  • Material:DNDMLYV
  • Model:DNDM-LYV
  • 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 DNDMLYV (DNDMLYV) is a manually operated, 2-position, 4-way directional cartridge valve designed to control the direction of flow in hydraulic circuits. This direct-acting, balanced spool valve utilizes Sun's Twist-Lock manual override mechanism for intermittent and infrequent use. It features a mechanical life expectancy of approximately 7,000 cycles. The valve offers multiple control options: the momentary-twist option allows temporary shifting by twisting the knob clockwise and releasing it back to its normal position; the detent-lock option shifts the valve into a mechanically held position by twisting counterclockwise, which is maintained until returned by twisting clockwise; and the dual-operation option combines both functionalities. The detented position should not be used for load holding but only for temporary shifting. It is crucial that this control be operated manually without any mechanical devices or modifications like levers. The valve incorporates EPDM seals suitable for phosphate ester fluids but incompatible with petroleum-based substances. It employs Sun's floating style construction to prevent internal binding due to installation torque or machining variations. With a cavity size of T-31A and series 1 capacity, it manages a flow rate of up to 10 gpm (40 L/min) and withstands maximum pressures of up to 5000 psi (350 bar). Valve leakage is minimal at specified conditions, with an operating torque requirement of 10 lbf-in (1.2 Nm). The hex size measures 7/8 inch (22.2 mm), with installation torque ranging from 30 to 35 lbf-ft (41 to 47 Nm). Viton seal kits are available under part number 990431006 for maintenance purposes.

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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