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MODEL
DDFC
4-way, 3-position, pilot-to-shift directional valve
SERIES 3 / CAPACITY: 160 L/min. / CAVITY: T-53A
C-Spool B-Spool
D-Spool
H-Spool
R-Spool T-Spool
W-Spool Y-Spool
NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.
Three-position, 4-way directional cartridges are spring-centered, 6-port directional valves that
can be configured from a choice of spool options. 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 14 bar
Maximum Operating Pressure 350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 160 cc/min.@70 bar
Pilot Volume Displacement 1,8 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 1.29 kg.
snhy.com/
DDFC
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(X)CONTROL
X Not Adjustable
(C)SPOOL CONFIGURATION
C Blocked Center
B B to T Center
D Blocked Center, Regen, P to B
and A to T
H Open Center
R Regen Center
T Tandem Center
W A and B Bleed to T Center,
Restrictive
Y A and B Bleed to T Center
(N)SEAL MATERIAL
N Buna-N
V Viton
TECHNICAL FEATURES
All ports will accept 5000 psi (350 bar), including the x and y pilot ports (port 1 and port 6).
Leakage listed in technical data is for each path, including pilot paths.
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: DDFCXCNCONFIGURATION OPTIONS
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