Created on 02/18/2016

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MODEL

DWDM

3-way, manually-operated, directional poppet valve

SERIES 1 / CAPACITY: 30 L/min. / CAVITY: T-11A

L-Control, A-Poppet

D-Control, A-Poppet

T-Control, A-Poppet

This manually operated, 2-position, 3-way directional cartridge is a direct-acting, poppet-style valve used to control

the direction of flow in a hydraulic circuit. The valve is normally open between port 1 and port 2 with port 3 blocked.

Operating the valve connects port 2 to 3 and blocks port 1. All flow paths are bidirectional and blocked paths are

blocked in both directions. Due to the poppet style construction, this valve has extremely low leakage.

Manual operation is achieved via Sun's Twist/Lock manual override mechanism and is designed for intermittent

(infrequent) use only.

TECHNICAL DATA

Maximum Operating Pressure 350 bar

Maximum Valve Leakage at 110 SUS (24 cSt) 0,7 cc/min.@350 bar

Operating Torque 1,2 Nm

Seal kit - Cartridge Buna: 990-411-007

Seal kit - Cartridge Viton: 990-411-006

(L)CONTROL

L Twist/Lock (Detent) Manual Override

D Twist/Lock (Dual) Manual Override

T Twist (Momentary) Manual Override

(A)POPPET CONFIGURATION

A Normally Open 1 to 2, Closed 2 to 3

(N)SEAL MATERIAL

N Buna-N

V Viton

snhy.com/DWDM

TECHNICAL FEATURES

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.

Valves exhibit extremely low leakage rates; less than 10 drops/min. @ 5000 psi (0,7 cc/min @350 bar).

This valve is suitable for load holding on port 3 only. The detent mechanism in the manual override is meant for temporary actuation.

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.

PERFORMANCE CURVES

Model Code Example: DWDMLANCONFIGURATION OPTIONS