Created on 12/14/2016
c
2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
FRDC
Fixed orifice, bypass only, pressure compensated flow control valve
SERIES 2 / CAPACITY: 45 L/min. / CAVITY: T-2A
This valve is a modification of an FRDA. It controls flow in the bypass mode only. If the bypass pressure exceeds
the pressure at the priority port the priority flow will no longer be pressure compensated. This modification was
done in an attempt to improve system stability in specific cases.
TECHNICAL DATA
Cavity T-2A
Series 2
Capacity 45 L/min.
Maximum Operating Pressure 350 bar
Maximum Input Flow 120 L/min.
Valve Hex Size 28,6 mm
Valve Installation Torque 61 - 68 Nm
Adjustment Screw Internal Hex Size 4 mm
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990202007
Seal kit - Cartridge Polyurethane: 990002002
Seal kit - Cartridge Viton: 990202006
Model Weight 0.20 kg.
(X)CONTROL
X Not Adjustable
C Tamper Resistant - Factory Set
K Handknob
L Tuning Adjustment
O Handknob with Panel Mount
(A)SETTING RANGE
A Replaceable Orifice .1 - 12 gpm (0,4 -
45 L/min.)
B Permanent Orifice .1 - 12 gpm (0,4 - 45
L/min.)
I Incomplete (no orifice) 17 gpm (64
L/min.)
(N)SEAL MATERIAL
N Buna-N
V Viton
snhy.com/FRDC
For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.
NOTES
Model Code Example: FRDCXANCONFIGURATION OPTIONS
Created on 12/14/2016
c
2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
TECHNICAL FEATURES
Customer must specify a flow rating. Factory set flow ratings are within +/- 10% of the requested setting.
Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
Bypass flow is not available until priority flow requirements are satisfied.
The sharp-edged orifice design minimizes flow variations due to viscosity changes.
A tuneable adjustment control option provides up to +/- 25% variation from the nominal factory pre-set flow. Adjustment is done with +/- 3 turns of the adjust screw.
Screw in (CW) to increase flow.
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.
