SCIALAN – Sun Hydraulics Direct-acting sequence valve with reverse flow check, Standard Material/Coating
Part number: SCIALAN · SCIA-LAN · SCIA LAN
Direct-acting sequence valve with reverse flow check. Cavity T-19A, capacity 120 gpm (480 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
SCIA-LAN overview
SCIALAN (SCIA-LAN, SCIA LAN) is a Sun Hydraulics Sun Hydraulics Direct-acting sequence valve with reverse flow check, 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.
| SCIALAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| SCIALAN | 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 | 2 in³/min. (30 cc/min.) |
| Maximum Valve Leakage at Reseat | 10 drops/min. (0,7 cc/min.) |
| Check Cracking Pressure | 25 psi (1,7 bar) |
| Response Time - Typical | 2 ms |
| Adjustment - No. of CW Turns from Min. to Max. setting | 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) |
| Model Weight | 3.10 lb (1,40 kg) |
| Seal kit - Cartridge | Viton: 990019006 |
How to read SCIALAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so SCIALAN, SCIA-LAN, SCIA LAN are the same part.
| Model | SCIA — Sun Hydraulics Direct-acting sequence valve with reverse flow check |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — 500 - 3000 psi (35 - 210 bar), 1000 psi (70 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
- L — Standard Screw Adjustment
- C — Tamper Resistant - Factory Set
Adjustment Range options
- A — 500 - 3000 psi (35 - 210 bar), 1000 psi (70 bar) Standard Setting
- W — 800 - 4500 psi (55 - 315 bar), 1000 psi (70 bar) Standard Setting
- B — 300 - 1500 psi (20 - 105 bar), 1000 psi (70 bar) Standard Setting
- C — 2000 - 6000 psi (140 - 420 bar), 2000 psi (140 bar) Standard Setting
- D — 200 - 800 psi (14 - 55 bar), 400 psi (28 bar) Standard Setting
- E — 100 - 400 psi (7 - 28 bar), 200 psi (14 bar) Standard Setting
Seal Material options
- N — Buna-N
- V — Viton
- E — EPDM
Material/coating options
- /AP — Stainless Steel, Passivated
- — 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 manifoldSCIALAN-BKL — request assembly
- BKM Sun Hydraulics ISO 07: On B, port 3 to A Sandwich manifoldSCIALAN-BKM — request assembly
- BKN Sun Hydraulics ISO 07: On A and B with cross pilot Sandwich manifoldSCIALAN-BKN — request assembly
- BKO Sun Hydraulics ISO 07: On P, port 3 to T Sandwich manifoldSCIALAN-BKO — request assembly
- K25 Sun Hydraulics Ninety degree with reverse flow check Line mount manifoldSCIALAN-K25 — request assembly
- K26 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K26 — request assembly
- K28 Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K28 — request assembly
- K2D Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K2D — request assembly
- K2E Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K2E — request assembly
- K2F Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K2F — request assembly
- K2L Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K2L — request assembly
- K2M Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldSCIALAN-K2M — request assembly
Technical features
- All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
- Although this is a zero pilot flow valve, port 3 (drain) must be connected to maintain a pressure reference in the control chamber. If port 3 is blocked, reciprocating seal weepage will cause the valve to malfunction.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Suitable for use in load holding applications.
- 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.
- 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 SCIALAN the same as SCIA-LAN?
Yes. Sun Hydraulics writes this part number as SCIALAN. It is the model SCIA followed by the configuration code; hyphens, slashes and spaces are only dividers, so SCIALAN, SCIA-LAN, SCIA LAN all refer to the same product.
Do you supply SCIALAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including SCIALAN, 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/SCIA
