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FCDB

Priority flow control valve from Sun Hydraulics

Description

Fixed-orifice, pressure-compensated flow controls with reverse-flow check provide precise flow regulation for meter-in or meter-out applications where there may be wide pressure fluctuations. An integral high-capacity check valve provides unrestricted flow from port 2 to port 1. The flow setting is specified by the user and is set at the factory.

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  • Customer must specify a flow rating. Factory set flow ratings are within +/- 10% of the requested setting.
  • All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
  • The sharp-edged orifice design minimizes flow variations due to viscosity changes.
  • The tuneable control option provides +/- 25% variation from the nominal factory pre-set flow.
  • Turn the adjustment clockwise to increase.
  • Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of Construction page located under TECH RESOURCES.
  • 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.

Technical Data

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity T-5A
Series 2
Capacity 12 gpm
Capacity (metric) 45 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Valve Hex Size 1 1/8 in.
Valve Hex Size (metric) 28,6 mm
Valve Installation Torque 45 – 50 lbf ft
Valve Installation Torque (metric) 61 – 68 Nm
Adjustment Screw Internal Hex Size 5/32 in.
Adjustment Screw Internal Hex Size (metric) 4 mm
Locknut Hex Size 9/16 in.
Locknut Hex Size (metric) 15 mm
Locknut Torque 80 – 90 lbf in.
Locknut Torque (metric) 9 – 10 Nm
Model Weight 0.37 lb.
Model Weight (metric) 0.17 kg.
Seal kit – Cartridge Viton: 990203006

Configuration Options

Control

L ★ Tuning Adjustment
X ★ Not Adjustable
K Handknob
N Capped Screw Adjustment with Lockwire Holes
R Lockwired Screw Adjustment

Setting Range

A ★ Replaceable Orifice .1 – 12 gpm (0,4 – 45 L/min.)
B Permanent Orifice .1 – 12 gpm (0,4 – 45 L/min.)

Seal Material

N ★ Buna-N
V Viton

Material/Coating

/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
Cavity: T-5A
Nominal Capacity: 12 gpm (45 lpm )
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Possible variants

FCDBKAN, FCDB-KAN, FCDBKAV, FCDB-KAV, FCDBKBN, FCDB-KBN, FCDBKBV, FCDB-KBV, FCDBLAN/AP, FCDB-LAN/AP, FCDBLAN/LH, FCDB-LAN/LH, FCDBLAV, FCDB-LAV, FCDBLAV/AP, FCDB-LAV/AP, FCDBLAV/LH, FCDB-LAV/LH, FCDBLBN, FCDB-LBN, FCDBLBN/AP, FCDB-LBN/AP, FCDBLBN/LH, FCDB-LBN/LH, FCDBLBV, FCDB-LBV, FCDBLBV/AP, FCDB-LBV/AP, FCDBLBV/LH, FCDB-LBV/LH, FCDBNAN, FCDB-NAN, FCDBNAV, FCDB-NAV, FCDBNBN, FCDB-NBN, FCDBNBV, FCDB-NBV, FCDBRAN, FCDB-RAN, FCDBRAV, FCDB-RAV, FCDBRBN, FCDB-RBN, FCDBRBV, FCDB-RBV, FCDBXAN, FCDB-XAN, FCDBXAN/AP, FCDB-XAN/AP, FCDBXAN/LH, FCDB-XAN/LH, FCDBXAV, FCDB-XAV, FCDBXAV/AP, FCDB-XAV/AP, FCDBXAV/LH, FCDB-XAV/LH, FCDBXBN, FCDB-XBN, FCDBXBN/AP, FCDB-XBN/AP, FCDBXBN/LH, FCDB-XBN/LH, FCDBXBV, FCDB-XBV, FCDBXBV/AP, FCDB-XBV/AP, FCDBXBV/LH, FCDB-XBV/LH