FNUC-XEN – Sun Hydraulics 4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) – common cavity
Part number: FNUCXEN · FNUC-XEN · FNUC XEN
4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) – common cavity. Cavity SC-10-04, capacity 10 gpm (40 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FNUC-XEN overview
FNUCXEN (FNUC-XEN, FNUC XEN) is a Sun Hydraulics Sun Hydraulics 4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) - common cavity, rated 10 gpm (40 L/min.) and installed in cavity SC-10-04. 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.
| FNUCXEN | No coilNo coil |
|---|---|
| FNUCXEN212 | DIN 43650-Form A, 12 VDCDIN 43650-Form A, 12 VDC |
| FNUCXEN224 | DIN 43650-Form A, 24 VDCDIN 43650-Form A, 24 VDC |
| FNUCXEN912D | Deutsch DT04-2P, 12 VDC, with transient voltage suppression (TVS) diodesDeutsch DT04-2P, 12 VDC, with transient voltage suppression (TVS) diodes |
Specifications
| Cavity | SC-10-04 |
|---|---|
| Series | 1C |
| Capacity | 10 gpm (40 L/min.) |
| Maximum Operating Pressure | 3600 psi (250 bar) |
| Typical Valve Leakage at 110 SUS (24cSt) | 110 mL/min.@3600 psi |
| Response Time - Typical | 50 ms |
| Solenoid Tube Diameter | .75 in. (19 mm) |
| Valve Hex Size | 1.00 in. (25,4 mm) |
| Coil Nut Torque | 3.5 - 3.9 lbf ft (4,8 - 5,3 Nm) |
| Valve Installation Torque | 28 - 32 lbf ft (38 - 43 Nm) |
| Mounting Bolt Installation Torque (T Control) | 4.2 - 4.6 lbf ft (5,7 - 6,2 Nm) |
| Model Weight (with coil) | 1.20 lb (0,55 kg) |
The two coils used in this assembly are interchangeable with one another, but once installed and wired, the coil closest to the hex body is considered Coil A, and the coil closest to the coil nut is Coil B.
How to read FNUCXEN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FNUCXEN, FNUC-XEN, FNUC XEN are the same part.
| Model | FNUC — Sun Hydraulics 4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) - common cavity |
|---|---|
| Control | X — No Manual Override |
| Flow Rate | E — 8 gpm Blocked Center (30 L/min.) |
| 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
- T — Lever (Momentary) Manual Override
- X — No Manual Override
Flow Rate options
- A — 1.3 gpm Blocked Center (4,8 L/min.)
- C — 4 gpm Blocked Center (15 L/min.)
- E — 8 gpm Blocked Center (30 L/min.)
- V — 1.3 gpm A and B Bleed to Center (4,8 L/min.)
- X — 4 gpm A and B Bleed to Center (15 L/min.)
- Z — 8 gpm A and B Bleed to Center (30 L/min.)
Seal Material options
- N — Buna-N
Coil options
- — No coil
- 212 — DIN 43650-Form A, 12 VDC
- 224 — DIN 43650-Form A, 24 VDC
- 912D — Deutsch DT04-2P, 12 VDC, with transient voltage suppression (TVS) diodes
- 924D — Deutsch DT04-2P, 24 VDC, with transient voltage suppression (TVS) diodes
Manifold & standard assemblies
Sun manifolds for cavity SC-10-04 (12)
- JPA Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPA — request assembly
- JPB Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPB — request assembly
- JPC Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPC — request assembly
- JPD Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPD — request assembly
- JPH Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPH — request assembly
- JPI Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPI — request assembly
- JPJ Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPJ — request assembly
- JPK Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPK — request assembly
- JPT Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPT — request assembly
- JPU Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPU — request assembly
- JPV Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPV — request assembly
- JPW Sun Hydraulics Ninety degree Line mount manifoldFNUCXEN-JPW — request assembly
Technical features
- This valve is direct actuated and requires no minimum hydraulic pressure for operation.
- Port 1 (Tank) is rated to a maximum of 1000 psi (70 bar). All other ports are rated to a maximum operating pressure of 3600 psi (250 bar).
- There are three flow ranges for each center configuration. See performance curves for more information.
- For best performance, an amplifier with current sensing and adjustable dither should be used. Reported performance is at recommended dither.
- Recommended dither varies per spool type (see proportional performance data) and may be adjusted to better suit the application.
- For best stability and control, recommended use is with a properly-sized restrictive (LPDC) or bypass (LRDC) compensator. Provisions to dampen the load-sense line of the compensator may be helpful in achieving the best performance.
- Self-compensated use is possible to a degree. Please refer to performance curves for details. For more precise flow control consider a separate compensator.
- Use of this valve with its 12V coil variants (778212 and 778912D) yields a lower rated performance when operating the coil at a 100% duty cycle. See performance curves for details.
- The valve is available with a manual override option (T control). This hand-actuated lever option is also rated to a maximum of 1000 psi (70 bar) at Port 1 and can be actuated under pressure. Rotating the lever away from the manifold block will connect port 3 to port 4 and port 2 to port 1. Rotating the lever towards the manifold block will connect port 3 to port 2 and port 4 to port 1.
- The manual override option includes two mounting bolts which fasten the mechanism onto the valve via mounting holes on the manifold. For details on the mounting holes, refer to the product page of any Sun manifold configured with an SC-10-04 cavity (i.e. model code: JPA).
- The metal coil nut is a functional feature of the valve and should be correctly installed for proper performance of the valve.
- Coil connector options offer ratings up to IP67. See individual coil product pages for details.
- This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
- The cartridge installation torque of 30 lbf ft (40 Nm) is required for best performance.
- Coils can be mounted on the tube in either direction.
Drawings, symbol & performance curves
Downloads
Datasheet
Technical reference sheets
- 999-901-334 (PDF 344 KB)
- FloatingStyleScrewInCartridge2 (PDF 1 MB)
- TT_US_Cavity-New (PDF 522 KB)
- TT_US_Solenoid-Review1-New (PDF 1 MB)
- TT_US_coils-New (PDF 975 KB)
CAD files
Frequently asked questions
Is FNUCXEN the same as FNUC-XEN?
Yes. Sun Hydraulics writes this part number as FNUCXEN. It is the model FNUC followed by the configuration code; hyphens, slashes and spaces are only dividers, so FNUCXEN, FNUC-XEN, FNUC XEN all refer to the same product.
Do you supply FNUCXEN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FNUCXEN, 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.
Direct acting or pilot operated - what do I use?
Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.
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/FNUC
