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SUN HYDRAULICS
FVCALBN


$97.10 USD
  • SUN HYDRAULICS
  • Material:FVCALBN
  • Model:FVCA-LBN
  • Summary:Cartridge

Quantity in stock: 0

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics FVCALBN (FVCALBN) is a ventable, bypass-restrictive, fixed-orifice priority flow control valve designed to manage hydraulic flow efficiently. This valve accepts input flow at port 1, directing it to satisfy the priority flow at port 3. Any excess flow surpassing the priority requirement is diverted through port 2 for use in secondary circuits. A unique feature of this valve is its vent port at port 4, which allows remote control operation. Customers must specify a desired flow rating, with factory settings accurate within a 10% range of the requested value. The valve can limit pressure at the priority port using a pressure control on port 4; if pressure at the bypass port exceeds this setting, all flow redirects to bypass. The maximum allowable pressure for this model is 3000 psi (210 bar) at the priority port, while both priority and bypass flows can handle up to the system's operating pressure. Priority flow remains stable despite variations in input flow but requires satisfaction before bypass flow becomes available unless vented through port 4. The sharp-edged orifice design minimizes fluctuations due to viscosity changes. An optional adjustable control enables up to a 25% variation from nominal factory settings, adjusted via an internal screw. The FVCALBN features Sun\u2019s floating style construction, reducing risks of internal binding from excessive torque or machining discrepancies. It fits into cavity T-21A and belongs to series 1 with a capacity of 6 gpm (23 L/min). The maximum input flow capacity is set at 15 gpm (60 L/min), with operational pressures reaching up to 5000 psi (350 bar). The model weighs approximately .30 lb (.15 kg) and includes Viton seals as part of its cartridge kit.

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.

  • 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).
  • 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.

Cavity T-21A
Series 1
Capacity 6 gpm23 L/min.
Maximum Operating Pressure 5000 psi350 bar
Nominal Vent Flow 46 in³/min.0,75 L/min.
Maximum Input Flow 15 gpm60 L/min.
Valve Hex Size 7/8 in.22,2 mm
Valve Installation Torque 30 - 35 lbf ft41 - 47 Nm
Adjustment Screw Internal Hex Size 5/32 in.4 mm
Locknut Hex Size 9/16 in.15 mm
Locknut Torque 80 - 90 lbf in.9 - 10 Nm
Model Weight .30 lb0,15 kg
Seal kit - Cartridge Viton: 990-021-006

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