 2019 Sun Hydraulics 1 of 3

MODEL

DDFG

3-way, 2-position, pilot-to-shift, directional valve

SERIES 3 / CAPACITY: 160 L/min. / CAVITY: T-53A

(X)CONTROL

X Not Adjustable

(C)SPOOL CONFIGURATION

C Closed Crossover

O Open Crossover

R Restricted Crossover

Y All Ports Blocked

Z All Ports Open

(N)SEAL MATERIAL

N Buna-N

V Viton

MATERIAL/COATING

Standard Material/Coating

/AP Stainless Steel, Passivated

/LH Mild Steel, Zinc-Nickel

X-Control, C-Spool

X-Control, O-Spool

X-Control, R-Spool

X-Control, Y-Spool

X-Control, Z-Spool

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

Two-position, 3-way directional cartridges are 6-port (port 5 is not used) directional valves that can be configured

with up to 5 different spool configurations. The supply port is port 3 and all ports will accept 5000 psi (350 bar).

Capacity for these pilot-to-shift valves is dependent on the spool type specified.

TECHNICAL DATA

Cavity T-53A

Series 3

Capacity 160 L/min.

Minimum Pilot Pressure Required to Shift Valve 11 bar

Pilot Pressure Required for Full Shift at Rated Flow 20 bar

Maximum Operating Pressure 350 bar

Maximum Valve Leakage at 110 SUS (24 cSt) 30 cc/min.@70 bar

Pilot Volume Displacement 2,1 cc

Valve Hex Size 31,8 mm

Valve Installation Torque 203 - 217 Nm

Seal kit - Cartridge Buna: 990053007

Seal kit - Cartridge Viton: 990053006

Model Weight 1.38 kg.

sunhydraulics.com/model/

DDFG

TECHNICAL FEATURES

Leakage listed in technical data is for each path.

Pressure at port 6 directly opposes port 1.

Hardened spool and sleeve provide consistent and low spool leakage rates and excellent wear characteristics.

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: DDFGXCNCONFIGURATION OPTIONS