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®
hydraulics
sunhydraulics.com/model/FREP
FREP
5000 psi (350 bar)
T-17A cavity
3WAY, DIRECTACTING
ELECTROPROPORTIONAL,
BYPASS/RESTRICTIVE
PRIORITY FLOW CONTROL VALVE
TABLE OF CONTENTS
Valve Functionality 2
Technical Features 2
Model Congurations & Options 3
Technical Specications 4
Performance Curves 5
Dimensional Drawings 7
Cavity Drawings 8
Accessories 9
HIGH RELIABILITY
10-million on-o operational cycles
ZINC-NICKEL COATING STANDARD
Oers 1,000-hour salt fog protection
USES 740 & 747 SERIES DC COILS
High-power &
hazardous location coils
Sun FLeX Series Solenoid Valves
FREP-X**
5000 psi (350 bar)
XMD
READY
PATENT PENDING
2
3
1
©2021 Sun Hydraulics2 www.sunhydraulics.com
FLeX Series
z Incorporates the Sun oating-style construction to minimize the possibility of internal parts binding due to
excessive installation torque and/or cavity/cartridge machining variations.
z FLeX Series proportional valves are fully compatible with the XMD Expandable Mobile Drivers from Sun.
z Designed and tested to exceed 10 million on-o operational cycles at full rated pressure.
z Exceeds the new NFPA test standard T2.6.1 R2014 for fatigue and burst pressure ratings.
z Both priority and bypass ow are usable up to the system operating pressure.
z Priority ow remains relatively constant regardless of variation in input ow.
z Bypass ow is not available until priority ow requirements are satised.
z Pressure at the bypass port (port 2) may exceed pressure at the priority port (port 3).
z In applications where the priority ow will be completely blocked, bypass pressure drop will increase over time
unless a leak path is provided for the priority ow.
z Designed using CFD uid simulation for optimized geometries.
z For optimum performance, use an amplier with current feedback and adjustable dither (80 - 250 Hz).
z Zinc-nickel plating standard for 1000-hour salt fog protection.
z Can be used with the 740 Series high-power and 747 Series hazardous location coils.
z A wide variety of coil termination and voltage options are available, with and without surge protection. See the
CONFIGURATION section.
z Coil connector options oer ratings up to IP69K. See individual coil product pages for details.
TECHNICAL FEATURESS
FREP
3WAY, DIRECTACTING
ELECTROPROPORTIONAL,
BYPASS/RESTRICTIVE
PRIORITY FLOW CONTROL VALVE
TECHNICAL FEATURES
SERIES 3, CAVITY: T-17A
This valve is a normally closed, electro-proportional, bypass/
restrictive, priority ow control valve. The valve takes an input
ow at port 1 and uses it to satisfy the priority ow at port 3.
If the input ow exceeds the priority requirement, the excess
is bypassed out port 2.
FREP-X**
Function: When de-energized, the throttle spool (1) creates
a blocked ow path from port 1 to port 3. The compensator
spool (2) creates a blocked ow path from port 1 to port
2. When energized, the throttle spool (1) creates an
open unidirectional ow path from port 1 to port 3. The
compensator spool (2) creates an open unidirectional ow
path from port 1 to port 2 while restricting ow from port 1
to port 3.
The valve pressure compensates the priority ow for precise
ow regulation in applications where there may be wide
pressure uctuations. Port 2 may also be completely blocked
so that the valve can be used as a 2-way electro-proportional
pressure compensated ow control from 1 to 3.
1
2
1
PORT
2
PORT
3
PORT
2
3
1
www.sunhydraulics.com ©2021 Sun Hydraulics 3
FLeX Series
CONFIGURATIONS
COMPATIBLE COILS
Sun cartridges have a base seven-digit part number. Each
of the digits in the sequence has signicance as shown in
the model code explanation below. Available options and
modiers for specic cartridges, manifolds, and valve packages
are shown on the individual product pages and data sheets.
Not all modiers are applicable for every model.
MODEL CODE EXPLANATION
Voltage
M20 x 1.5
180°
M20 x 1.5
90°
1/2” NPT
180°
1/2” NPT 90°
Wattage
@ 20°C
Circuitry
12 Vdc 747-JM12BD 747-JM12CD 747-JN12BD 747-JN12CD 29.6 W With diode
24 Vdc 747-JM24BD 747-JM24CD 747-JN24BD 747-JN24CD 29.9 W With diode
High-Power (25-W) Coils
Hazardous Location, Explosion-Proof (30-W) Coils
747
High-power coils
DIN or Deutsch connector
12, 14, 24, or 28 Vdc
With or without TVS diode
740
X * *
74*
Hazardous location coils
Explosion-proof
CSA, ATEX, IECEx certied
12, 24 Vdc
See individual coil data sheets for
full coil conguration.
Important Note:
When performing model code searches on www.sunhydraulics.com, do not
include setting(s). When ordering, no spaces or dashes are used.
BASE MODEL CODE CONFIGURATIONS
VALVE
F R E P
‒
COIL
COIL TYPE
Flow control
Restrictive
Series 3
Proportional
N = Buna-N
V = Viton
A = Nominal 8 gpm (30 L/min)
B = Nominal 15 gpm (60 L/min)
C = Nominal 22 gpm (88 L/min)
X = no manual override
* * * *
‒
CONFIGURATIONS
*
Voltage
DIN 43650
Form A
(IP65/IP67)
AMP Junior
Connector
Adaptor Kit
Twin Leads
Connector
Adaptor Kit
Metri-Pack,
Series 150-2M
Connector
Adapter
Deutsch
DT04-2P
(IP69K)
Resistance @20°C
(ohms) ±10%
(with diode*)
TVS Diode (Nominal)
Breakdown Voltage
(with diode*)
12 Vdc 740-212 740-612 740-712 740-812 740-912 5.8  68 Vdc
14 Vdc 740-214 740-614 740-714 740-814 740-914 7.8  68 Vdc
24 Vdc 740-224 740-624 740-724 740-824 740-924 23.0  68 Vdc
28 Vdc 740-228 740-628 740-728 740-828 740-928 31.4  68 Vdc
* Above model codes are shown without transient voltage suppression (TVS) diodes.
To order 740 Series coils with a TVS diode, append model code with “D” (Example: 740-212D).
©2021 Sun Hydraulics4 www.sunhydraulics.com
FLeX Series
TECHNICAL SPECIFICATIONS
FREP
TECHNICAL SPECIFICATIONS
Sun Cavity T-17A
Sun Cartridge Series Series 3
Maximum Flow Rate/Capacity 30 gpm (120 L/min)
Maximum Operating Pressure 5000 psi (350 bar)
Response Time - Typical 50 ms (open & close)
Typical Internal Leakage at 110 SUS (24 cSt) from
port 1 to 3 @ 1450 psi (100 bar)
30 mL/min @ 1450 psi (100 bar)
Typical Internal Leakage at 110 SUS (24 cSt) from
port 1 to 3 @ 5000 psi (350 bar)
110 mL/min @ 5000 psi (350 bar)
Switching Frequency - Maximum 1 Hz (3,600 cycles/hour)
Recommended Dither Frequency 100 Hz
Typical Hysteresis (at Recommended Dither) A: 9%, B: 7%, C: 5%
Typical Linearity (at Recommended Dither) A: 2%, B: 3%, C: 5%
Typical Repeatability (at Recommended Dither) 1.5%
Typical Deadband, Nominal (as Percent of Coil
Current)
25%
Manual Override Option No
Viscosity Range 2,8 to 380 cSt or 35 to 2000 SUS
Filtration Minimum cleanliness (ISO 4406 1999, 4/6/14 m) 18/16/13
Valve Hex Size 1-1/4 in (31,7 mm)
Valve Installation Torque 150-160 lbf ft (203-217 N-m)
Mounting Position No restrictions
Valve Weight (excluding coil) 1.2 lbs (0.5 kg)
Seal Kit - Viton 990-017-006
Seal Kit - Buna 990-017-007
3WAY, DIRECTACTING
ELECTROPROPORTIONAL,
BYPASS/RESTRICTIVE
PRIORITY FLOW CONTROL VALVE
www.sunhydraulics.com ©2021 Sun Hydraulics 5
FLeX Series
PERFORMANCE CURVES
PERFORMANCE CURVES
©2021 Sun Hydraulics6 www.sunhydraulics.com
FLeX Series
PERFORMANCE CURVES (CONTINUED)
PERFORMANCE CURVES
Typical Compensation
Port 2 Blocked
Typical Compensation
Port 2 Blocked
FREP-*C*
Typical Compensation
Port 2 Blocked
Bypass Pressure
Higher than Priority
Priority Pressure
Higher than Bypass
Bypass Pressure
Higher than Priority
Priority Pressure
Higher than Bypass
Bypass Pressure
Higher than Priority
Priority Pressure
Higher than Bypass
www.sunhydraulics.com ©2021 Sun Hydraulics 7
FLeX Series
DIMENSIONAL DRAWINGS
FREP WITH 740 SERIES HIGH-POWER COILS
747 SERIES HAZARDOUS LOCATION COILS
NOTE: Please verify cartridge clearance requirements when choosing a Sun manifold. Dierent valve controls and coils require
dierent clearances. An additional minimum 2.0 in. (50,8 mm) beyond the valve extension is needed for coil installation and removal.
©2021 Sun Hydraulics8 www.sunhydraulics.com
FLeX Series
T-17A CAVITY DIMENSIONAL DRAWING
NOTE: For cavity tooling, see table below.
For full cavity detail, download the latest
drawings from our website.
www.sunhydraulics.com/cavity/T-17A
DESCRIPTION
HIGH-SPEED
STEEL
TITANIUM
COATED
M36 X 2-6H tap, straight shank 998996 998996101
Series 3 deep hex socket 998100003
T-17A cavity form drill, morse taper 994017001 994017101
T-17A cavity form drill, straight shank 994017002 994017102
T-17A cavity form reamer, morse taper 995017001 995017101
T-17A cavity form reamer, straight shank 995017002 995017102
CAVITY DRAWING & TOOLING
T-17A CAVITY TOOLING
T-17A CAVITY
M36 X 2.0-6H
.969 MIN
L.S. DEPTH
(24,61)
LOCATING SHOULDER
.688 MIN
FULL THD
(17,48)
1.824
1.820
PORT
1
1.000
MAX
(25,40)
.875 MAX
(22,23)
1.000
(25,40)
PORT
2
LOCATING SHOULDER
.312
(7,92)
.562 MAX
(14,27)
PORT
3
CARTRIDGE NOSE SUPPORT
www.sunhydraulics.com ©2021 Sun Hydraulics 9
FLeX Series ADDITIONAL INFORMATION
XMD Single- and Dual-Output Drivers
The XMD is a single- or dual-output driver used with solenoid-operated electro-proportional valves for the mobile and industrial
hydraulic industries. The driver can be mounted on a manifold using the standard mount clip or directly to the 740 Series
low- and high-power coils using an optional coil-mount clip.
ACCESSORIES
DESCRIPTION PART NUMBER
Single-output PWM driver with standard mounting bracket XMD-01
Dual-output PWM driver with standard mounting bracket XMD-02
DESCRIPTION PART NUMBER
Wire harness, 2-pin Deutsch-to-Metri-Pack Conversion 991-717
Wire harness, 2-pin Deutsch-to-Amp Jr Timer Conversion 991-718
Wire harness, 2-pin Deutsch-to-Twin-Lead Conversion 991-719
Wire Harnesses
January 2021
Sun Hydraulics Headquarters
Sarasota, Florida USA
+1 941 362 1200
Sun Hydraulics Korea Corp.
Incheon, Korea
+82 3281 31350
sales@sunhydraulics.co.kr
Sun Hydraulics Limited
Coventry, England
+44 2476 217 400
sales@sunuk.com
Sun Hydraulics China Co. Ltd.
Shanghai, P.R. China
+86 2162 375885
sunchinainfo@sunhydraulics.com
Sun Hydraulik GmbH
Erkelenz, Germany
+49 2431 80910
sales@sunhydraulik.de
Sun Hydraulics Corp. (India)
Bangalore, India
+91 8028 456325
sunindiainfo@sunhydraulics.com
Sun Hydraulics Corp. (S.America)
Rosario, Argentina
+54 9 341 584 3075
ventas@sunhydraulics.com
Custom Fluidpower Pty Ltd
(A Sun Hydraulics Company)
Newcastle, Australia
+61 02 4953 5777
sales@custom.com.au
MOTOR-MOUNT MANIFOLDS – PRIORITY FLOW CONTROL (FREP)
Sun Hydraulics oers six standard OMP motor-mount manifolds
designed for the FREP that include a set of deep mounting
holes to accommodate Sun’s XMD Mobile Driver. These single-
cavity manifolds include versions in a range of port sizes.
These priority ow control manifolds include the following
models available on our website: WEC, WED, WEK, WEL, WEV,
and WEW. See our WE* listings online:
www.SunHydraulics.com/FREP-manifolds.
To search our complete line of more than 4000 standard
manifolds, please visit our website:
www.SunHydraulics.com/models/manifolds.