Created on 12/08/2015

 2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2

MODEL

DCDF

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

SERIES 2 / CAPACITY: 38 - 120 L/min. / CAVITY: T-62A

X-Control, X-Spool X-Control, A-Spool

X-Control, B-Spool X-Control, C-Spool

X-Control, H-Spool X-Control, R-Spool

X-Control, T-Spool X-Control, W-Spool

X-Control, Y-Spool

Two-position, 4-way directional cartridges are spring-offset, 6-port directional valves that can be configured from a

choice of 9 different 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

Minimum Pilot Pressure Required to Shift Valve 10,5 bar

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

Pilot Volume Displacement 0,98 cc

Seal kit - Cartridge Buna: 990-062-007

Seal kit - Cartridge Polyurethane: 990-062-002

Seal kit - Cartridge Viton: 990-062-006

(X)CONTROL

X Not Adjustable

(X)SPOOL CONFIGURATION

X P to B and A to T Center

A A to T Center

B B to T Center

C Blocked Crossover

H Open Crossover

R Regen Center

T Tandem Center

W A and B Bleed to T Center

Y A and B to T Center

(N)SEAL MATERIAL

N Buna-N

E EPDM

V Viton

snhy.com/

DCDF

TECHNICAL FEATURES

All ports will accept 5000 psi (350 bar), including the x and y pilot ports (port 5 and port 6).

The reason for the different capacities, or performance limits, for the different spool configurations are flow forces. Flow forces are proportional to flow and pressure

drop. Typically, they resist the opening of a passage. Spool configurations that open passages as they spring center are the most susceptible. If the flow forces due

to the flow and pressure conditions exceed the centering spring force the valve may not shift completely. Higher flows may be used at lower pressures.

Leakage listed in technical data is for each path.

The pilot ports, 5 and 6, are positively sealed from the work ports.

Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage

the seals.

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: DCDFXXNCONFIGURATION OPTIONS