LHDT-XFN – Sun Hydraulics Normally open, bi-directional, modulating element
Part number: LHDTXFN · LHDT-XFN · LHDT XFN
Normally open, bi-directional, modulating element. Cavity T-31A, capacity 15 gpm (60 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
LHDT-XFN overview
LHDTXFN (LHDT-XFN, LHDT XFN) is a Sun Hydraulics Sun Hydraulics Normally open, bi-directional, modulating element, rated 15 gpm (60 L/min.) and installed in cavity T-31A. 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.
| LHDTXFN | Buna-N sealsBuna-N |
|---|---|
| LHDTXFV | Viton sealsViton |
| LHDTXFE | EPDM sealsEPDM |
Specifications
| Cavity | T-31A |
|---|---|
| Series | 1 |
| Capacity | 15 gpm (60 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 30 - 35 lbf ft (41 - 47 Nm) |
| Model Weight | .40 lb (0,20 kg) |
| Seal kit - Cartridge | Viton: 990031006 |
How to read LHDTXFN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so LHDTXFN, LHDT-XFN, LHDT XFN are the same part.
| Model | LHDT — Sun Hydraulics Normally open, bi-directional, modulating element |
|---|---|
| Control | X — Not Adjustable |
| Nominal Control Pressure | F — 100 psi (7 bar) |
| 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
- X — Not Adjustable
Nominal Control Pressure options
- D — 50 psi (3,5 bar)
- E — 75 psi (5 bar)
- F — 100 psi (7 bar)
Seal Material options
- N — Buna-N
- V — Viton
- E — EPDM
Manifold & standard assemblies
Sun manifolds for cavity T-31A (49)
- C7A Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7A — request assembly
- C7B Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7B — request assembly
- C7C Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7C — request assembly
- C7I Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7I — request assembly
- C7J Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7J — request assembly
- C7K Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7K — request assembly
- C7T Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7T — request assembly
- C7U Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7U — request assembly
- C7V Sun Hydraulics Ninety degree Line mount manifoldLHDTXFN-C7V — request assembly
- C8A Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldLHDTXFN-C8A — request assembly
- C8B Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldLHDTXFN-C8B — request assembly
- C8C Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldLHDTXFN-C8C — request assembly
Technical features
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- All ports will accept 5000 psi (350 bar).
- 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 LHDTXFN the same as LHDT-XFN?
Yes. Sun Hydraulics writes this part number as LHDTXFN. It is the model LHDT followed by the configuration code; hyphens, slashes and spaces are only dividers, so LHDTXFN, LHDT-XFN, LHDT XFN all refer to the same product.
Do you supply LHDTXFN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including LHDTXFN, 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/LHDT











