FKBB-XCN – Sun Hydraulics 2-way, pilot-shifted, proportional throttle with bleed down
Part number: FKBBXCN · FKBB-XCN · FKBB XCN
2-way, pilot-shifted, proportional throttle with bleed down. Cavity T-21A, capacity 5 gpm (20 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FKBB-XCN overview
FKBBXCN (FKBB-XCN, FKBB XCN) is a Sun Hydraulics Sun Hydraulics 2-way, pilot-shifted, proportional throttle with bleed down, rated 5 gpm (20 L/min.) and installed in cavity T-21A. 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.
| FKBBXCN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| FKBBXCN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| FKBBXCN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-21A |
|---|---|
| Series | 1 |
| Capacity | 5 gpm (20 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi (30 cc/min.@70 bar) |
| Pilot Volume Displacement | .02 in³ (0,33 cc) |
| Minimum Pilot Pressure to Operate | 100 psi (7 bar) |
| Bypass orifice | .03 in. (0,8 mm) |
| Hysteresis | ± 2 % |
| Adjustment - No. of CW Turns from Min. to Max. setting | 5 |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 30 - 35 lbf ft (41 - 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 lb (0,15 kg) |
| Seal kit - Cartridge | Viton: 990021006 |
How to read FKBBXCN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FKBBXCN, FKBB-XCN, FKBB XCN are the same part.
| Model | FKBB — Sun Hydraulics 2-way, pilot-shifted, proportional throttle with bleed down |
|---|---|
| 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
Material/coating options
- /AP — Stainless Steel, Passivated
- /LH — Mild Steel, Zinc-Nickel
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-21A (54)
- M4A Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4A — request assembly
- M4B Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4B — request assembly
- M4C Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4C — request assembly
- M4I Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4I — request assembly
- M4J Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4J — request assembly
- M4K Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4K — request assembly
- M4T Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4T — request assembly
- M4U Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4U — request assembly
- M4V Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldFKBBXCN-M4V — request assembly
- MAA Sun Hydraulics Ninety degree Line mount manifoldFKBBXCN-MAA — request assembly
- MAB Sun Hydraulics Ninety degree Line mount manifoldFKBBXCN-MAB — request assembly
- MAC Sun Hydraulics Ninety degree Line mount manifoldFKBBXCN-MAC — request assembly
Technical features
- 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.
Drawings, symbol & performance curves
Downloads
Datasheet
Technical reference sheets
CAD files
Frequently asked questions
Is FKBBXCN the same as FKBB-XCN?
Yes. Sun Hydraulics writes this part number as FKBBXCN. It is the model FKBB followed by the configuration code; hyphens, slashes and spaces are only dividers, so FKBBXCN, FKBB-XCN, FKBB XCN all refer to the same product.
Do you supply FKBBXCN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FKBBXCN, 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/FKBB
