SUN HYDRAULICS
FKCBLCN
$123.31 USD
- SUN HYDRAULICS
- Material:FKCBLCN
- Model:FKCB-LCN
- Summary:Cartridge
Quantity in stock: 0
***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 FKCBLCN (FKCBLCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic circuits. This valve features normally closed ports 2 and 3, with pilot pressure at port 1 creating a metering orifice between these ports, proportionate to the pressure at port 1. The valve's design incorporates a force balance of flow forces, spring tension, and pilot pressure, offering partial self-compensation as load pressure varies. It includes a bleed-down feature that connects ports 3 to 4 in the spring-biased position, which is advantageous when used as a metering flow control in circuits with counterbalance valves downstream of port 3. This connection closes with increasing pilot pressure at port 1. An optional L control allows for tuning adjustments to vary the required pilot pressure for flow control, ranging from 50 to 450 psi (3.5 to 30 bar), with a standard setting of 100 psi (7 bar). For enhanced accuracy in flow control, external modulating logic elements such as LRCXHN or LPCXHN can be used for bypass or restrictive circuits respectively. The valve's floating style construction minimizes internal binding risks due to installation torque or machining variations. This valve fits into cavity T21A and belongs to series 1 with a capacity of up to 9 gpm (34 L/min) and can operate at pressures up to 5000 psi (350 bar). The maximum leakage is rated at 2 in\u00b3/min (30 cc/min) under specific conditions. It requires a minimum pilot pressure of 100 psi (7 bar) and features an adjustable screw for fine-tuning settings. The FKCBLCN model weighs approximately .30 lb (.15 kg) and uses Viton seals for durability.
The Sun Hydraulics FKCBLCN (FKCBLCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic circuits. This valve features normally closed ports 2 and 3, with pilot pressure at port 1 creating a metering orifice between these ports, proportionate to the pressure at port 1. The valve's design incorporates a force balance of flow forces, spring tension, and pilot pressure, offering partial self-compensation as load pressure varies. It includes a bleed-down feature that connects ports 3 to 4 in the spring-biased position, which is advantageous when used as a metering flow control in circuits with counterbalance valves downstream of port 3. This connection closes with increasing pilot pressure at port 1. An optional L control allows for tuning adjustments to vary the required pilot pressure for flow control, ranging from 50 to 450 psi (3.5 to 30 bar), with a standard setting of 100 psi (7 bar). For enhanced accuracy in flow control, external modulating logic elements such as LRCXHN or LPCXHN can be used for bypass or restrictive circuits respectively. The valve's floating style construction minimizes internal binding risks due to installation torque or machining variations. This valve fits into cavity T21A and belongs to series 1 with a capacity of up to 9 gpm (34 L/min) and can operate at pressures up to 5000 psi (350 bar). The maximum leakage is rated at 2 in\u00b3/min (30 cc/min) under specific conditions. It requires a minimum pilot pressure of 100 psi (7 bar) and features an adjustable screw for fine-tuning settings. The FKCBLCN model weighs approximately .30 lb (.15 kg) and uses Viton seals for durability.
This valve is a 2-way, 2 position, proportional throttle. Ports 2 and 3 are normally closed. Pilot pressure at port 1 creates a metering orifice between port 2 and 3 that is proportional to the pressure at 1. The force balance of the flow forces, spring and pilot pressure results in a degree of partial self-compensation as the load pressure changes.
This valve includes a bleed down feature which connects ports 3 to 4 in the spring biased position. The bleed down feature is useful when the valve is used as a meter-in flow control in circuits which include counterbalance valves downstream of port 3. The bleed down connection is closed as the valve is piloted with increasing pressure at port 1.
Pressure at port 4 directly opposes pressure at port 1.
- An optional tuning adjustment (L control) is offered to vary the pilot pressure required to control flow. The tuning adjustment provides a means to manually increase or decrease flow at a given pilot pressure. The adjustment range is 50 - 450 psi (3,5 - 30 bar), 100 psi (7 bar) Standard Setting.
- These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
- The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
- Ports 1 and 4 should be limited to 500 psi (35 bar).
- Pressure at port 4 directly opposes pressure at port 1.
- Accurate pressure compensated control requires that a constant pressure differential be maintained across the valve.
- 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 | 9 gpm34 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Pilot Volume Displacement | .02 in³0,33 cc |
| Minimum Pilot Pressure to Operate | 100 psi7 bar |
| Bypass orifice | .03 in.0,8 mm |
| Hysteresis | ± 2 %± 2 % |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| 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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