DCDF-XXN – Sun Hydraulics 4-way, 2-position, pilot-to-shift directional valve
Part number: DCDFXXN · DCDF-XXN · DCDF XXN
4-way, 2-position, pilot-to-shift directional valve. Cavity T-62A, capacity 11 – 30 gpm (38 – 120 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
DCDF-XXN overview
DCDFXXN (DCDF-XXN, DCDF XXN) is a Sun Hydraulics Sun Hydraulics 4-way, 2-position, pilot-to-shift directional valve, rated 11 - 30 gpm (38 - 120 L/min.) and installed in cavity T-62A. 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.
| DCDFXXN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| DCDFXXN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| DCDFXXN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-62A |
|---|---|
| Series | 2 |
| Capacity | 11 - 30 gpm (38 - 120 L/min.) |
| Minimum Pilot Pressure Required to Shift Valve | 150 psi (10,5 bar) |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi (30 cc/min.@70 bar) |
| Pilot Volume Displacement | .06 in³ (0,98 cc) |
| Valve Hex Size | 1 1/8 in. (28,6 mm) |
| Valve Installation Torque | 45 - 50 lbf ft (61 - 68 Nm) |
| Model Weight | .80 lb (0,35 kg) |
| Seal kit - Cartridge | Viton: 990062006 |
How to read DCDFXXN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so DCDFXXN, DCDF-XXN, DCDF XXN are the same part.
| Model | DCDF — Sun Hydraulics 4-way, 2-position, pilot-to-shift directional valve |
|---|---|
| Control | X — Not Adjustable |
| Spool Configuration | X — P to A and B to T Center |
| 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
Spool Configuration options
- A — A to T Center
- B — B to T Center
- C — Blocked Crossover
- H — Open Crossover
- R — Regen Center
- T — Tandem Center
- W — A and B Bleed to T Center
- X — P to A and B to T Center
- Y — A and B to T Center
Seal Material options
- N — Buna-N
- V — Viton
- E — EPDM
Material/coating options
- /AP — Stainless Steel, Passivated
- /LH — Mild Steel, Zinc-Nickel
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-62A (9)
- NPB Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPB — request assembly
- NPC Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPC — request assembly
- NPD Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPD — request assembly
- NPJ Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPJ — request assembly
- NPK Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPK — request assembly
- NPL Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPL — request assembly
- NPU Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPU — request assembly
- NPV Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPV — request assembly
- NPW Sun Hydraulics Ninety degree Line mount manifoldDCDFXXN-NPW — request assembly
Technical features
- All ports will accept 5000 psi (350 bar), including the x and y pilot ports (port 5 and port 6).
- The reason for the different capacities, or performance limits, for the different spool configurations are flow forces. Flow forces are proportional to flow and pressure drop. Typically, they resist the opening of a passage. Spool configurations that open passages as they spring center are the most susceptible. If the flow forces due to the flow and pressure conditions exceed the centering spring force the valve may not shift completely. Higher flows may be used at lower pressures.
- Leakage listed in technical data is for each path.
- The pilot ports, 5 and 6, are positively sealed from the work ports.
- 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.
- Hardened spool and sleeve provide consistent and low spool leakage rates and excellent wear characteristics.
- 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_PODirectional_Aug2015 (PDF 2 MB)
CAD files
Frequently asked questions
Is DCDFXXN the same as DCDF-XXN?
Yes. Sun Hydraulics writes this part number as DCDFXXN. It is the model DCDF followed by the configuration code; hyphens, slashes and spaces are only dividers, so DCDFXXN, DCDF-XXN, DCDF XXN all refer to the same product.
Do you supply DCDFXXN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including DCDFXXN, 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/DCDF
