SUN HYDRAULICS
FKBALCN
$123.41 USD
- SUN HYDRAULICS
- Material:FKBALCN
- Model:FKBA-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 FKBALCN (Material Number: FKBALCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features ports 2 and 3 that are normally closed, with pilot pressure at port 1 creating a metering orifice between ports 2 and 3, which is proportional to the pressure at port 1. The design incorporates a force balance of flow forces, spring, and pilot pressure, allowing for partial self-compensation as the load pressure changes. Pressure at port 4 directly opposes that at port 1, playing a critical role in maintaining control. An optional tuning adjustment (L control) is available to vary the pilot pressure needed for controlling flow, with an adjustment range of 50 to 450 psi (3.5 to 30 bar). For enhanced accuracy in flow control, this valve can be paired with an external modulating logic element like LRCXHN for bypass circuits or LPCXHN for restrictive circuits. The valve's construction minimizes internal binding risks due to excessive installation torque or machining variations. The FKBALCN operates within a maximum capacity of 5 gpm (20 L/min) and withstands pressures up to 5000 psi (350 bar). It features minimal leakage rates and requires a minimum pilot pressure of 100 psi (7 bar) to operate effectively. The valve's design includes EPDM seals suited for systems using phosphate ester fluids while being incompatible with petroleum-based products. With its compact build and robust performance capabilities, this valve is ideal for applications requiring reliable flow regulation under varying pressures and conditions.
The Sun Hydraulics FKBALCN (Material Number: FKBALCN) is a 2-way, 2-position proportional throttle valve designed for precise flow control in hydraulic systems. This valve features ports 2 and 3 that are normally closed, with pilot pressure at port 1 creating a metering orifice between ports 2 and 3, which is proportional to the pressure at port 1. The design incorporates a force balance of flow forces, spring, and pilot pressure, allowing for partial self-compensation as the load pressure changes. Pressure at port 4 directly opposes that at port 1, playing a critical role in maintaining control. An optional tuning adjustment (L control) is available to vary the pilot pressure needed for controlling flow, with an adjustment range of 50 to 450 psi (3.5 to 30 bar). For enhanced accuracy in flow control, this valve can be paired with an external modulating logic element like LRCXHN for bypass circuits or LPCXHN for restrictive circuits. The valve's construction minimizes internal binding risks due to excessive installation torque or machining variations. The FKBALCN operates within a maximum capacity of 5 gpm (20 L/min) and withstands pressures up to 5000 psi (350 bar). It features minimal leakage rates and requires a minimum pilot pressure of 100 psi (7 bar) to operate effectively. The valve's design includes EPDM seals suited for systems using phosphate ester fluids while being incompatible with petroleum-based products. With its compact build and robust performance capabilities, this valve is ideal for applications requiring reliable flow regulation under varying pressures and conditions.
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.
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.
- 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.
- 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 | 5 gpm20 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 |
| 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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