DRAY-LAN – Sun Hydraulics 2-way, pilot-to-shift directional valve with drain to port 4 – normally open
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Part number: DRAYLAN · DRAY-LAN · DRAY LAN
2-way, pilot-to-shift directional valve with drain to port 4 – normally open. Cavity T-21A, capacity .5 gpm (2 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
DRAY-LAN overview
DRAYLAN (DRAY-LAN, DRAY LAN) is a Sun Hydraulics Sun Hydraulics 2-way, pilot-to-shift directional valve with drain to port 4 - normally open, rated .5 gpm (2 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.
| DRAYLAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| DRAYLAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-21A |
|---|---|
| Series | 1 |
| Capacity | .5 gpm (2 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Maximum Valve Leakage at Reseat | 20 drops/min. |
| Reseat | >85% of setting |
| 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 DRAYLAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so DRAYLAN, DRAY-LAN, DRAY LAN are the same part.
| Model | DRAY — Sun Hydraulics 2-way, pilot-to-shift directional valve with drain to port 4 - normally open |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — 1000 - 3000 psi (70 - 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
- C — Tamper Resistant - Factory Set
- L — Standard Screw Adjustment
Adjustment Range options
- A — 1000 - 3000 psi (70 - 210 bar), 1000 psi (70 bar) Standard Setting
- C — 2000 - 6000 psi (140 - 420 bar), 2000 psi (140 bar) Standard Setting
Seal Material options
- N — Buna-N
- V — Viton
Material/coating options
- /AP — Stainless Steel, Passivated
- — 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 manifoldDRAYLAN-M4A — request assembly
- M4B Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4B — request assembly
- M4C Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4C — request assembly
- M4I Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4I — request assembly
- M4J Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4J — request assembly
- M4K Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4K — request assembly
- M4T Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4T — request assembly
- M4U Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4U — request assembly
- M4V Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDRAYLAN-M4V — request assembly
- MAA Sun Hydraulics Ninety degree Line mount manifoldDRAYLAN-MAA — request assembly
- MAB Sun Hydraulics Ninety degree Line mount manifoldDRAYLAN-MAB — request assembly
- MAC Sun Hydraulics Ninety degree Line mount manifoldDRAYLAN-MAC — request assembly
Technical features
- The pilot area (port 1) and the spring chamber drain (port 4) are positively sealed.
- There is spool leakage between the work ports (ports 2 and 3)of less than 20 drops/min (1,4 cc/min).
- The valve is designed to not modulate and is the equivalent of a hydraulic pressure switch.
- 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_PCDirectional-New_1 (PDF 630 KB)
CAD files
Frequently asked questions
Is DRAYLAN the same as DRAY-LAN?
Yes. Sun Hydraulics writes this part number as DRAYLAN. It is the model DRAY followed by the configuration code; hyphens, slashes and spaces are only dividers, so DRAYLAN, DRAY-LAN, DRAY LAN all refer to the same product.
Do you supply DRAYLAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including DRAYLAN, 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?
Only external seals are serviceable. Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.
Where would I use a DR__ instead of a DP__?
In many circuits the directional cartridge is set to shift at a low pressure no matter how high the pilot pressure goes. If you use a DP__ , the pilot flow increases to significant amounts. A DR__ however will only consume a small amount of flow. A DP__ is useful when you want to block or open the pilot flow to shift the valve.
I used a DP** in a circuit but it hangs. What happened?
DP**s and DR**s are from the reducer/reliever family and are very capable of modulating. They are not bistable.
Manufacturer reference: https://www.sunhydraulics.com/model/DRAY
