 2019 Sun Hydraulics 1 of 2

MODEL

DSEH

Low side, 3-position, hot oil shuttle valve

SERIES 2 / CAPACITY: 80 L/min. / CAVITY: T-32A

(X)CONTROL

X Not Adjustable

(H)SHIFTING PRESSURE

H 200 psi (14 bar)

G 150 psi (10,5 bar)

(N)SEAL MATERIAL

N Buna-N

V Viton

MATERIAL/COATING

Standard Material/Coating

/AP Stainless Steel, Passivated

/LH Mild Steel, Zinc-Nickel

NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.

Low-side (hot oil) shuttle cartridges allow hot oil to be diverted from the low pressure side of a closed loop system.

When both work ports (ports 2 and 4) are at equal pressures the valve is spring-centered to an all-ports-blocked

position. When one of the work ports (port 2 or 4) sees a higher pressure the opposite work port is connected to the

common port (port 3).

TECHNICAL DATA

Cavity T-32A

Series 2

Capacity 80 L/min.

Maximum Operating Pressure 350 bar

Pilot Flow 0,38 L/min.

Valve Hex Size 28,6 mm

Valve Installation Torque 61 - 68 Nm

Seal kit - Cartridge Buna: 990032007

Seal kit - Cartridge Polyurethane: 990032002

Seal kit - Cartridge Viton: 990032006

Model Weight 0.32 kg.

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DSEH

TECHNICAL FEATURES

The spool incorporates a hydraulic stop that eliminates mechanical impact and therefore the potential for internal damage.

The hydraulic stop results in a small pilot flow from the high side work port (port 2 or 4) to the common port (port 3).

A unique feature due to the hydraulic stop is that the hot oil relief setting can be confirmed with the transmission in neutral.

NOTE: Low shift values can potentially result in charge pump pressure alone inadvertently shifting the valve. Use care when selecting shift pressure.

Although this valve goes into a 4-port cavity, the nose (port 1) is not used.

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: DSEHXHNCONFIGURATION OPTIONS