SDJTLAN/LH – Sun Hydraulics Anti-Shock, pilot-operated, balanced poppet sequence valve with drain to port 3, Mild Steel, Zinc-Nickel
Part number: SDJTLAN · SDJT-LAN · SDJT LAN
Anti-Shock, pilot-operated, balanced poppet sequence valve with drain to port 3. Cavity T-19A, capacity 120 gpm (480 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
SDJT-LAN overview
SDJTLAN (SDJT-LAN, SDJT LAN) is a Sun Hydraulics Sun Hydraulics Anti-Shock, pilot-operated, balanced poppet sequence valve with drain to port 3, rated 120 gpm (480 L/min.) and installed in cavity T-19A. 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.
| SDJTLAN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
|---|---|
| SDJTLAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-19A |
|---|---|
| Series | 4 |
| Capacity | 120 gpm (480 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Factory Pressure Settings Established at | 4 gpm (15 L/min.) |
| Control Pilot Flow | 10 - 25 in³/min. (0,16 - 0,41 L/min.) |
| Pressure Ramp Up Time | 200 - 400 ms |
| Response Time - Typical | 2 ms |
| Adjustment - No. of CW Turns from Min. to Max. setting | 4.5 |
| Valve Hex Size | 1 5/8 in. (41,3 mm) |
| Valve Installation Torque | 350 - 375 lbf ft (474 - 508 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: 990219006 |
How to read SDJTLAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so SDJTLAN, SDJT-LAN, SDJT LAN are the same part.
| Model | SDJT — Sun Hydraulics Anti-Shock, pilot-operated, balanced poppet sequence valve with drain to port 3 |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — 2000 - 3000 psi (140 - 210 bar), 2000 psi (140 bar) Standard Setting |
| 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
- C — Concealed Manual Override
- L — Standard Screw Adjustment
Adjustment Range options
- A — 2000 - 3000 psi (140 - 210 bar), 2000 psi (140 bar) Standard Setting
- C — 4500 - 6000 psi (315 - 420 bar), 4500 psi (315 bar) Standard Setting
- W — 3000 - 4500 psi (210 - 315 bar), 3000 psi (210 bar) Standard Setting
Seal Material options
- N — Buna-N
- V — Viton
Material/coating options
- /LH — Mild Steel, Zinc-Nickel
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-19A (186)
- BKL Sun Hydraulics ISO 07: On A, port 3 to B Sandwich manifoldSDJTLAN/LH-BKL — request assembly
- BKM Sun Hydraulics ISO 07: On B, port 3 to A Sandwich manifoldSDJTLAN/LH-BKM — request assembly
- BKN Sun Hydraulics ISO 07: On A and B with cross pilot Sandwich manifoldSDJTLAN/LH-BKN — request assembly
- BKO Sun Hydraulics ISO 07: On P, port 3 to T Sandwich manifoldSDJTLAN/LH-BKO — request assembly
- K25 Sun Hydraulics Ninety degree with reverse flow check Line mount manifoldSDJTLAN/LH-K25 — request assembly
- K26 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K26 — request assembly
- K28 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K28 — request assembly
- K2D Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K2D — request assembly
- K2E Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K2E — request assembly
- K2F Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K2F — request assembly
- K2L Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K2L — request assembly
- K2M Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSDJTLAN/LH-K2M — request assembly
Technical features
- Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
- Not suitable for use in load holding applications.
- When pressure at the inlet (port 1) exceeds the threshold setting, the valve opens to tank (port 2). The pilot section moves forward at a steady rate, increasing the setting by compressing the pilot spring. Maximum setting is achieved when the pilot section reaches a mechanical stop.
- The main stage orifice is protected against contamination.
- Not suitable for sequencing cylinders.
- Pressure settings are insensitive to back pressure at port 2.
- 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
- 999-901-334 (PDF 344 KB)
- FloatingStyleScrewInCartridge2 (PDF 1 MB)
- TT_US_Cavity-New (PDF 522 KB)
- TT_US_Sequence-New (PDF 493 KB)
CAD files
Frequently asked questions
Is SDJTLAN the same as SDJT-LAN?
Yes. Sun Hydraulics writes this part number as SDJTLAN. It is the model SDJT followed by the configuration code; hyphens, slashes and spaces are only dividers, so SDJTLAN, SDJT-LAN, SDJT LAN all refer to the same product.
Do you supply SDJTLAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including SDJTLAN, 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.
What does Sun mean by the term sequencing?
A sequence valve opens when the pressure at port 1 exceeds the setting of the valve. When pressures at port 1 and port 2 both exceed the setting of the valve the valve goes full open, or sequences. When this happens flow can go in either direction, just so long as port 1 stays above the setting.
What are the tolerances on pressure settings for Sun's pressure control valves?
Pressure setting tolerances are listed in our Performance Data page. A link to this page can also be found in the Additional Resources tab of the applicable product 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/SDJT
