 2019 Sun Hydraulics 1 of 2

MODEL

FVFA

Ventable, fixed orifice, bypass/restrictive, priority, flow control valve

SERIES 4 / CAPACITY: 200 L/min. / CAVITY: T-24A

(X)CONTROL

X Not Adjustable

L Tuning Adjustment

(A)SETTING RANGE

A Replaceable Orifice .2 - 50 gpm (1 -

200 L/min.)

(N)SEAL MATERIAL

N Buna-N

E EPDM

V Viton

NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.

Ventable, bypass/restrictive, fixed-orifice, priority flow controls take an input flow at port 1 and use it to satisfy the

priority flow at port 3. If the input flow exceeds the priority flow requirement, the excess is bypassed out port 2. The

bypass flow may be used in a secondary circuit. A vent port (port 4) allows these valves to be controlled remotely.

TECHNICAL DATA

Cavity T-24A

Series 4

Capacity 200 L/min.

Maximum Operating Pressure 350 bar

Nominal Vent Flow 0,75 L/min.

Maximum Input Flow 480 L/min.

Valve Hex Size 41,3 mm

Valve Installation Torque 474 - 508 Nm

Adjustment Screw Internal Hex Size 4 mm

Locknut Hex Size 15 mm

Locknut Torque 9 - 10 Nm

Seal kit - Cartridge Buna: 990024007

Seal kit - Cartridge EPDM: 990024014

Seal kit - Cartridge Polyurethane: 990024002

Seal kit - Cartridge Viton: 990024006

Model Weight 1.37 kg.

sunhydraulics.com/model/

FVFA

Model Code Example: FVFAXANCONFIGURATION OPTIONS

 2019 Sun Hydraulics 2 of 2

TECHNICAL FEATURES

Customer must specify a flow rating. Factory set flow ratings are within +/- 10% of the requested setting.

Using a pressure control on port 4 will limit the pressure at the priority port (port 3). If pressure on the bypass port (port 2) exceeds the setting of the pressure

control, priority flow will be shut off and all the flow will go out the bypass port.

Maximum pressure at port 3 should be limited to 3000 psi (210 bar).

Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.

Both priority and bypass flow are usable up to the system operating pressure.

Priority remains relatively constant regardless of variation in input flow.

Bypass flow is not available until priority flow requirements are satisfied, except when the valve is vented. When port 4 (vent) is open, all flow diverts to port 2 if

pressure at port 1 (inlet) is 150 psi (10,5 bar) or higher.

Pressure at the bypass port (port 2) may exceed pressure at the priority port (port 3).

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.

PERFORMANCE CURVES

RELATED MODELS

FVFA8 Ventable, fixed orifice, bypass/restrictive, priority, flow control valve with integral T-8A control cavity