CNDEXCN – Sun Hydraulics Pilot-to-close check valve with bypass orifice, Buna-N seals
Part number: CNDEXCN · CNDE-XCN · CNDE XCN
Pilot-to-close check valve with bypass orifice. Cavity T-11A, capacity 20 gpm (80 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
CNDE-XCN overview
CNDEXCN (CNDE-XCN, CNDE XCN) is a Sun Hydraulics Sun Hydraulics Pilot-to-close check valve with bypass orifice, rated 20 gpm (80 L/min.) and installed in cavity T-11A. 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.
| CNDEXCN | Buna-N sealsBuna-N |
|---|---|
| CNDEXCV | Viton sealsViton |
Specifications
| Cavity | T-11A |
|---|---|
| Series | 1 |
| Capacity | 20 gpm (80 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Pilot Ratio | 1.8:1 |
| Orifice Range | .016 - .107 in. (0,4 - 2,7 mm) |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 30 - 35 lbf ft (41 - 47 Nm) |
| Seal kit - Cartridge | Viton: 990011006 |
How to read CNDEXCN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so CNDEXCN, CNDE-XCN, CNDE XCN are the same part.
| Model | CNDE — Sun Hydraulics Pilot-to-close check valve with bypass orifice |
|---|---|
| Control | X — Not Adjustable |
| Setting Range | C — 30 psi (2 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm) |
| 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
Setting Range options
- A — 4 psi (0,3 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- B — 15 psi (1 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- C — 30 psi (2 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- D — 50 psi (3,5 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- E — 75 psi (5 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- F — 100 psi (7 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
- Z — 1 psi (0,07 bar) Cracking Pressure, .016 - .107 in. (0,4 - 2,7 mm)
Seal Material options
- N — Buna-N
- V — Viton
Manifold & standard assemblies
Sun manifolds for cavity T-11A (583)
- A2A Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2A — request assembly
- A2B Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2B — request assembly
- A2C Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2C — request assembly
- A2I Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2I — request assembly
- A2J Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2J — request assembly
- A2K Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2K — request assembly
- A2T Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2T — request assembly
- A2U Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2U — request assembly
- A2V Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A2V — request assembly
- A7A Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A7A — request assembly
- A7B Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A7B — request assembly
- A7C Sun Hydraulics Ninety degree with reverse flow check, accepts standard and weatherized coils Line mount manifoldCNDEXCN-A7C — request assembly
Technical features
- Features hardened steel seats for excellent wear characteristics and contamination tolerance.
- Nominal pilot ratio is 1.8:1. This means that a pressure of 1000 psi (70 bar) at the pilot port will close a valve against a pressure of 1800 psi (125 bar) at port 1. Any decay or loss of pilot pressure could allow the valve to open, even if it is a momentary decay or loss.
- Pressure at the port 2 area directly opposes pilot pressure.
- With equal pressures at all ports the valve is closed.
- 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
Frequently asked questions
Is CNDEXCN the same as CNDE-XCN?
Yes. Sun Hydraulics writes this part number as CNDEXCN. It is the model CNDE followed by the configuration code; hyphens, slashes and spaces are only dividers, so CNDEXCN, CNDE-XCN, CNDE XCN all refer to the same product.
Do you supply CNDEXCN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including CNDEXCN, 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.
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.
I need to discharge a large accumulator. How can I increase the capacity of my discharge circuit?
Because of the very high ratio, the COFO has limited capacity. The discharge path is across a .050 inch (1,3 mm) diameter orifice. If you have large accumulators combined with low precharge pressures, this may not discharge the energy quickly enough. Using the COFO XDN cartridge in conjunction with an LODA XDN will provide capacity for larger applications.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/CNDE
