RPCC-LAN – Sun Hydraulics Pilot-operated, balanced piston relief valve
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Part number: RPCCLAN · RPCC-LAN · RPCC LAN
Pilot-operated, balanced piston relief valve. Cavity T-162A, capacity 12 gpm (45 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
RPCC-LAN overview
RPCCLAN (RPCC-LAN, RPCC LAN) is a Sun Hydraulics Sun Hydraulics Pilot-operated, balanced piston relief valve, rated 12 gpm (45 L/min.) and installed in cavity T-162A. 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.
| RPCCLAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| RPCCLAN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| RPCCLAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-162A |
|---|---|
| Series | 0 |
| Capacity | 12 gpm (45 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Factory Pressure Settings Established at | 4 gpm (15 L/min.) |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi (30 cc/min.@70 bar) |
| Response Time - Typical | 10 ms |
| Adjustment - No. of CW Turns from Min. to Max. setting | 5 |
| Valve Hex Size | 3/4 in. (19,1 mm) |
| Valve Installation Torque | 20 - 25 lbf ft (27 - 33 Nm) |
| Adjustment Screw Internal Hex Size | 5/32 in. (4 mm) |
| Locknut Hex Size | 1/2 in. (12,7 mm) |
| Locknut Torque | 80 - 90 lbf in. (9 - 10 Nm) |
| Model Weight | .20 lb (0,10 kg) |
| Seal kit - Cartridge | Viton: 990162006 |
How to read RPCCLAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so RPCCLAN, RPCC-LAN, RPCC LAN are the same part.
| Model | RPCC — Sun Hydraulics Pilot-operated, balanced piston relief valve |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — 75 - 3000 psi (5 - 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
- K — Handknob
- F — Hex Head Screw with Locknut
Adjustment Range options
- A — 75 - 3000 psi (5 - 210 bar), 1000 psi (70 bar) Standard Setting
- W — 75 - 4500 psi (5 - 315 bar), 1000 psi (70 bar) Standard Setting
- B — 75 - 1500 psi (5 - 105 bar), 1000 psi (70 bar) Standard Setting
- C — 75 - 6000 psi (5 - 420 bar), 1000 psi (70 bar) Standard Setting
- N — 75 - 800 psi (5 - 55 bar), 400 psi (28 bar) Standard Setting
- Q — 75 - 400 psi (5 - 28 bar), 200 psi (14 bar) Standard Setting
Seal Material options
- N — Buna-N
- L — Extended Temp. Buna
- 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-162A (56)
- AAA Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAA — request assembly
- AAB Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAB — request assembly
- AAC Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAC — request assembly
- AAH Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAH — request assembly
- AAI Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAI — request assembly
- AAJ Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAJ — request assembly
- AAT Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAT — request assembly
- AAU Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAU — request assembly
- AAV Sun Hydraulics Ninety degree Line mount manifoldRPCCLAN-AAV — request assembly
- ABA Sun Hydraulics ISO 02: P to T Sandwich manifoldRPCCLAN-ABA — request assembly
- ABB Sun Hydraulics ISO 02: A to B and B to A Sandwich manifoldRPCCLAN-ABB — request assembly
- ABC Sun Hydraulics ISO 02: A and B to T Sandwich manifoldRPCCLAN-ABC — request assembly
Technical features
- All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
- Minimum setting is 75 psi (5 bar) for all spring ranges.
- Not suitable for use in load holding applications due to spool leakage.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- The main stage orifice is protected against contamination.
- 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_Relief-N (PDF 656 KB)
CAD files
Frequently asked questions
Is RPCCLAN the same as RPCC-LAN?
Yes. Sun Hydraulics writes this part number as RPCCLAN. It is the model RPCC followed by the configuration code; hyphens, slashes and spaces are only dividers, so RPCCLAN, RPCC-LAN, RPCC LAN all refer to the same product.
Do you supply RPCCLAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including RPCCLAN, 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.
Where would I use a kick-down relief?
One graphic example is on a portable grain auger for silos. When the farmer gets caught in the auger the kick-down relief trips and allows him to escape.
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.
Can I use a kick-down relief for my system relief?
Maybe not. We build in a good amount of overlap in the kick-down reliefs to prevent false tripping. This means they are not as fast as our standard pilot-operated reliefs. A direct-acting relief valve set just above the kick-down relief valve would be good insurance.
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.
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.
Manufacturer reference: https://www.sunhydraulics.com/model/RPCC
