Created on 01/30/2017
c
2017 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
DFDB
2-way, 2 stage, solenoid-operated directional poppet valve - flow 2-1
SERIES 2 / CAPACITY: 120 L/min. / CAVITY: T-5A
X-Control, C-Poppet X-Control, H-Poppet
D-Control, C-Poppet D-Control, H-Poppet
L-Control, C-Poppet L-Control, H-Poppet
M-Control, C-Poppet M-Control, H-Poppet
T-Control, C-Poppet T-Control, H-Poppet
This solenoid controlled, 2-way, 2-position cartridge is a pilot-operated, poppet style directional valve with reverse
free flow check. It is available in either a normally open or normally closed configuration. Due to its poppet style
construction, it has extremely low leakage.
TECHNICAL DATA
Cavity T-5A
Series 2
Capacity 120 L/min.
Maximum Operating Pressure 350 bar
Response Time - Typical 30 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 0,7 cc/min.@350 bar
Check Cracking Pressure 3,5 bar
Switching Frequency 15000 cycles/hr
Solenoid Tube Diameter 19 mm
Valve Hex Size 28,6 mm
Valve Installation Torque 61 - 68 Nm
Seal kit - Cartridge Buna: 990203007
Seal kit - Cartridge EPDM: 990203014
Seal kit - Cartridge Viton: 990203006
Model Weight 0.42 kg.
(X)CONTROL
X No Manual Override
D Twist/Lock (Dual) Manual Override
L Twist/Lock (Detent) Manual Override
M Manual Override
T Twist (Momentary) Manual Override
(C)POPPET CONFIGURATION
C Normally Closed
H Normally Open
(N)SEAL MATERIAL
N Buna-N
E EPDM
V Viton
COIL *
No coil
212 DIN 43650-Form A, 12 VDC
224 DIN 43650-Form A, 24 VDC
712 Twin Lead, 12 VDC
724 Twin Lead, 24 VDC
912 Deutsch DT04-2P, 12 VDC
snhy.com/
DFDB
NOTES
Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
An additional 2.00 inches (50,8 mm) beyond the valve extension is needed for coil installation and removal.
Model Code Example: DFDBXCNCONFIGURATION OPTIONS
Created on 01/30/2017
c
2017 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
912 Deutsch DT04-2P, 12 VDC
924 Deutsch DT04-2P, 24 VDC
* Additional coil options are available
TECHNICAL FEATURES
The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
This cartridge has several manual override choices, including no manual override. See the CONFIGURATION section. Please note: Manual override functionality is
not compatible with weatherized coils.
On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control
assembly has a mechanical life expectancy of approximately 7,000 cycles.
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.
Valves exhibit extremely low leakage rates; less than 10 drops/min. @ 5000 psi (0,7 cc/min @ 350 bar).
This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a
factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes
that will affect the function of the cartridge.
A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete
environmental protection.
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
DFDB8 2-way, poppet directional valve with integral T-8A control cavity - control 2-1
