RPGD-ABN – Sun Hydraulics Air-controlled, pilot-operated, balanced piston relief valve
Part number: RPGDABN · RPGD-ABN · RPGD ABN
Air-controlled, pilot-operated, balanced piston relief valve. Cavity T-3A, capacity 50 gpm (200 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
RPGD-ABN overview
RPGDABN (RPGD-ABN, RPGD ABN) is a Sun Hydraulics Sun Hydraulics Air-controlled, pilot-operated, balanced piston relief valve, rated 50 gpm (200 L/min.) and installed in cavity T-3A. 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.
| RPGDABN | Buna-N sealsBuna-N |
|---|---|
| RPGDABV | Viton sealsViton |
Specifications
| Cavity | T-3A |
|---|---|
| Series | 2 |
| Capacity | 50 gpm (200 L/min.) |
| Maximum Operating Pressure | 2000 psi (140 bar) |
| Pilot Ratio | 20:1 |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 3 in³/min.@1000 psi (50 cc/min.@70 bar) |
| Maximum Air Pressure | 150 psi (10,5 bar) |
| Response Time - Typical | 10 ms |
| Valve Hex Size | 1 1/8 in. (28,6 mm) |
| Valve Installation Torque | 45 - 50 lbf ft (61 - 68 Nm) |
| Model Weight | .50 lb (0,25 kg) |
| Seal kit - Cartridge | Viton: 990203006 |
How to read RPGDABN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so RPGDABN, RPGD-ABN, RPGD ABN are the same part.
| Model | RPGD — Sun Hydraulics Air-controlled, pilot-operated, balanced piston relief valve |
|---|---|
| Control | A — External 1/4 NPTF Port |
| Operating Range | B — 50 - 1500 psi (3,5 - 105 bar) |
| 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
- A — External 1/4 NPTF Port
Operating Range options
- B — 50 - 1500 psi (3,5 - 105 bar)
- I — 15 - 1000 psi (1 - 70 bar)
Seal Material options
- N — Buna-N
- V — Viton
Manifold & standard assemblies
Sun manifolds for cavity T-3A (238)
- CA3 Sun Hydraulics Ninety degree with gauge port Line mount manifoldRPGDABN-CA3 — request assembly
- CA4 Sun Hydraulics Ninety degree with gauge port Line mount manifoldRPGDABN-CA4 — request assembly
- CA5 Sun Hydraulics Ninety degree with gauge port Line mount manifoldRPGDABN-CA5 — request assembly
- CAA Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAA — request assembly
- CAB Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAB — request assembly
- CAC Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAC — request assembly
- CAD Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAD — request assembly
- CAE Sun Hydraulics Ninety degree with gauge port Line mount manifoldRPGDABN-CAE — request assembly
- CAH Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAH — request assembly
- CAI Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAI — request assembly
- CAJ Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAJ — request assembly
- CAK Sun Hydraulics Ninety degree Line mount manifoldRPGDABN-CAK — 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.
- Maximum air pressure should not exceed 150 psi (10 bar).
- 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 RPGDABN the same as RPGD-ABN?
Yes. Sun Hydraulics writes this part number as RPGDABN. It is the model RPGD followed by the configuration code; hyphens, slashes and spaces are only dividers, so RPGDABN, RPGD-ABN, RPGD ABN all refer to the same product.
Do you supply RPGDABN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including RPGDABN, 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.
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.
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.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/RPGD
