FKFA-XCN – Sun Hydraulics 2-way, pilot-shifted, proportional throttle
Part number: FKFAXCN · FKFA-XCN · FKFA XCN
2-way, pilot-shifted, proportional throttle. Cavity T-23A, capacity 20 gpm (80 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FKFA-XCN overview
FKFAXCN (FKFA-XCN, FKFA XCN) is a Sun Hydraulics Sun Hydraulics 2-way, pilot-shifted, proportional throttle, rated 20 gpm (80 L/min.) and installed in cavity T-23A. MultiFlow supplies genuine Sun Hydraulics cartridges in the UAE, GCC and India — use Add to Enquiry above for availability and a quotation.
Ordering codes
Pick the code that matches the material and finish you need. Add it to your enquiry above, or tap a code to select it.
| FKFAXCN | Buna-N sealsBuna-N |
|---|---|
| FKFAXCV | Viton sealsViton |
Specifications
| Cavity | T-23A |
|---|---|
| Series | 3 |
| Capacity | 20 gpm (80 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 4 in³/min.@1000 psi (65 cc/min.@70 bar) |
| Pilot Volume Displacement | .10 in³ (1,6 cc) |
| Minimum Pilot Pressure to Operate | 100 psi (7 bar) |
| Hysteresis | ± 2 % |
| Adjustment - No. of CW Turns from Min. to Max. setting | 5 |
| Valve Hex Size | 1 1/4 in. (31,8 mm) |
| Valve Installation Torque | 150 - 160 lbf ft (203 - 217 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) |
| Seal kit - Cartridge | Viton: 990023006 |
How to read FKFAXCN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FKFAXCN, FKFA-XCN, FKFA XCN are the same part.
| Model | FKFA — Sun Hydraulics 2-way, pilot-shifted, proportional throttle |
|---|---|
| Control | X — Not Adjustable |
| Spool Configuration | C — Normally Closed |
| Seal Material | N — Buna-N |
| Material / coating | Add /AP (stainless steel, passivated) or /LH (mild steel, zinc-nickel) to the end; no suffix is the standard finish. |
Control options
- L — Tuning Adjustment
- X — Not Adjustable
Spool Configuration options
- C — Normally Closed
Seal Material options
- N — Buna-N
- V — Viton
Manifold & standard assemblies
Sun manifolds for cavity T-23A (73)
- P44 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P44 — request assembly
- P45 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P45 — request assembly
- P4D Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4D — request assembly
- P4E Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4E — request assembly
- P4F Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4F — request assembly
- P4L Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4L — request assembly
- P4M Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4M — request assembly
- P4N Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4N — request assembly
- P4P Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4P — request assembly
- P4Q Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4Q — request assembly
- P4W Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4W — request assembly
- P4X Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKFAXCN-P4X — request assembly
Technical features
- 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.
- 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 - 250 psi (3,5 - 15 bar), 100 psi (7 bar) Standard Setting.
- 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.
Drawings, symbol & performance curves
Downloads
Datasheet
Technical reference sheets
CAD files
Frequently asked questions
Is FKFAXCN the same as FKFA-XCN?
Yes. Sun Hydraulics writes this part number as FKFAXCN. It is the model FKFA followed by the configuration code; hyphens, slashes and spaces are only dividers, so FKFAXCN, FKFA-XCN, FKFA XCN all refer to the same product.
Do you supply FKFAXCN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FKFAXCN, to customers in the UAE, the wider GCC and India. Use Add to Enquiry on this page for availability, lead time and a quotation.
Can I get the datasheet and CAD files?
Yes. The datasheet, technical reference sheets and CAD files (DXF, DWG, STP) are listed in the Downloads section of this page.
How big is a drop of hydraulic oil?
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/FKFA
