Created on 04/05/2017
c
2017 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
DFDA8
2-way, poppet directional valve with integral T-8A control cavity - control 1-2
SERIES 2 / CAPACITY: 120 L/min. / CAVITY: T-5A
NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.
This valve is a 2-position, 2-way poppet cartridge that incorporates an integral pilot control cavity. It controls flow
from port 1 to port 2, exhibits extremely low leakage rates and will accept 5000 psi (350 bar) at both ports. Installing
a pilot solenoid cartridge in the T-8A cavity results in a high-flow directional valve. Other pilot options include
manual, hydraulic and pneumatic pilot cartridges.
TECHNICAL DATA
Cavity T-5A
Series 2
Capacity 120 L/min.
Maximum Operating Pressure 350 bar
Response Time - Typical see pilot control ms
Maximum Valve Leakage at 110 SUS (24 cSt) 0,7 cc/min.@350 bar
Check Cracking Pressure 3,5 bar
Pilot Control Cavity T-8A
Pilot Control Valve Installation Torque 27 - 33 Nm
Valve Hex Size 28,6 mm
Valve Installation Torque 61 - 68 Nm
Seal kit - Cartridge Buna: 990203007
Seal kit - Cartridge Viton: 990203006
Model Weight 0.15 kg.
(D)CRACKING PRESSURE
D 50 psi (3,5 bar)
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/
DFDA8
TECHNICAL FEATURES
Compound cartridge (pilot and main stage) assembly information is provided for reference only. Cartridges must be ordered separately and assembled at
point of use.
NOTES
Model Code Example: DFDA8DNCONFIGURATION OPTIONS
Created on 04/05/2017
c
2017 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
NOTE: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required
torque value.
The -8 control option allows the pilot control valve to be incorporated directly into the end of the directional cartridge via the T-8A cavity. These pilot control
cartridges are sold separately and include solenoid operation, air pilot operation, and hydraulic pilot operation. See Pilot Control Cartridges.
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
RELATED MODELS
DFDA 2-way, 2 stage, solenoid-operated directional poppet valve - flow 1-2
