RBAPXAN/LH – Sun Hydraulics Electro-proportional relief valve - pilot capacity, Mild Steel, Zinc-Nickel
Part number: RBAPXAN · RBAP-XAN · RBAP XAN
Electro-proportional relief valve – pilot capacity. Cavity T-8A, capacity .25 gpm (1 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
RBAP-XAN overview
RBAPXAN (RBAP-XAN, RBAP XAN) is a Sun Hydraulics Sun Hydraulics Electro-proportional relief valve - pilot capacity, rated .25 gpm (1 L/min.) and installed in cavity T-8A. 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.
| RBAPXAN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
|---|---|
| RBAPXAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-8A |
|---|---|
| Series | P |
| Capacity | .25 gpm (1 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Maximum Valve Leakage at Reseat | 1.5 in³/min. (25 cc/min.) |
| Manual Override Force Requirement | 10 lbs/1000 psi @ Port 1 (66 N/100 bar @ Port 1) |
| Reseat | >85% of setting |
| Solenoid Tube Diameter | .75 in. (19 mm) |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 20 - 25 lbf ft (27 - 33 Nm) |
| Model Weight (with coil) | 1.00 lb (0,45 kg) |
| Seal kit - Cartridge | Viton: 990208006 |
| Seal and nut kit - Coil | Viton: 990770006 |
Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
How to read RBAPXAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so RBAPXAN, RBAP-XAN, RBAP XAN are the same part.
| Model | RBAP — Sun Hydraulics Electro-proportional relief valve - pilot capacity |
|---|---|
| Control | X — No Manual Override |
| Adjustment Range | A — 300 - 3000 psi (20 - 210 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
- X — No Manual Override
- E — Twist (Extended) Manual Override
- L — Manual Override - Adjustable
- T — Tuning Adjustment
- M — Manual Override
Adjustment Range options
- A — 300 - 3000 psi (20 - 210 bar)
- B — 150 - 1500 psi (10,5 - 105 bar)
- D — 50 - 750 psi (3,5 - 50 bar)
- W — 500 - 5000 psi (35 - 350 bar)
Seal Material options
- N — Buna-N
- L — Extended Temp. Buna
- V — Viton
- E — EPDM
Coil options
- — No coil
- 212 — DIN 43650-Form A, 12 VDC
- 212N — DIN 43650-Form A, 12 VDC, no transient voltage suppression (TVS) diodes
- 212NX01 — DIN 43650-Form A, 12 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 212NX02 — DIN 43650-Form A, 12 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- 214N — DIN 43650-Form A, 14 VDC, no transient voltage suppression (TVS) diodes
- 214NX01 — DIN 43650-Form A, 14 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 214NX02 — DIN 43650-Form A, 14 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- 224 — DIN 43650-Form A, 24 VDC
- 224N — DIN 43650-Form A, 24 VDC, no transient voltage suppression (TVS) diodes
- 224NX01 — DIN 43650-Form A, 24 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 224NX02 — DIN 43650-Form A, 24 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- 2B12A — DIN 43650-Form A, command common on fourth pin, 12 VDC, 0-20 mA
- 2B12V — DIN 43650-Form A, command common on fourth pin, 12 VDC, 0-10V
- 2B24A — DIN 43650-Form A, command common on fourth pin, 24 VDC, 0-20 mA
- 2B24B — DIN 43650-Form A, command common on fourth pin, 24 VDC, Bluetooth
- 2B24V — DIN 43650-Form A, command common on fourth pin, 24 VDC, 0-10V
- 2C12V — DIN 43650-Form A, +5V reference on fourth pin, 12 VDC, 0-10V
- 2C24V — DIN 43650-Form A, +5V reference on fourth pin, 24 VDC, 0-10V
- 2D12A — DIN 43650-Form A, enable input on fourth pin, 12 VDC, 0-20 mA
- 2D24A — DIN 43650-Form A, enable input on fourth pin, 24 VDC, 0-20 mA
- 2D24V — DIN 43650-Form A, enable input on fourth pin, 24 VDC, 0-10V
- 2F12V — DIN 43650-Form A, programmable ramps, separate rise and fall, 12 VDC
- 2F24V — DIN 43650-Form A, programmable ramps, separate rise and fall, 24 VDC
- 4A12A — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 12 VDC, 0-20 mA
- 4A12B — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 12 VDC, Bluetooth
- 4A12V — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 12 VDC, 0-10V
- 4A24A — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 24 VDC, 0-20 mA
- 4A24B — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 24 VDC, Bluetooth
- 4A24V — Deutsch DT04-6P, all functions enabled (separate command common, 5 v reference, and an enable), 24 VDC, 0-10V
- 4F12V — Deutsch DT04-6P, programmable ramps, separate rise and fall, 12 VDC
- 4F24V — Deutsch DT04-6P, programmable ramps, separate rise and fall, 24 VDC
- 812 — Metri-Pack, 12 VDC
- 912 — Deutsch DT04-2P, 12 VDC
- 912N — Deutsch DT04-2P, 12 VDC, no transient voltage suppression (TVS) diodes
- 912NX01 — Deutsch DT04-2P, 12 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 912NX02 — Deutsch DT04-2P, 12 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- 914 — Deutsch DT04-2P, 14 VDC
- 914N — Deutsch DT04-2P, 14 VDC, no transient voltage suppression (TVS) diodes
- 914NX01 — Deutsch DT04-2P, 14 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 914NX02 — Deutsch DT04-2P, 14 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- 924 — Deutsch DT04-2P, 24 VDC
- 924N — Deutsch DT04-2P, 24 VDC, no transient voltage suppression (TVS) diodes
- 924NX01 — Deutsch DT04-2P, 24 VDC, no transient voltage suppression (TVS) diodes, with XMD-01 driver
- 924NX02 — Deutsch DT04-2P, 24 VDC, no transient voltage suppression (TVS) diodes, with XMD-02 driver
- HN24AA — Explosion Proof, 1/2 inch NPT mechanical conduit, 24 VDC, 10 feet twin lead, ATEX Certification Ex mb IIC T3 Gb.
- HN24AB — Explosion Proof, 1/2 inch NPT mechanical conduit, 24 VDC, 10 feet twin lead, CSA Certification
Material/coating options
- /LH — Mild Steel, Zinc-Nickel
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-8A (9)
- ADJ Sun Hydraulics Reducer/reliever on P2 Line mount manifoldRBAPXAN/LH-ADJ — request assembly
- ADP Sun Hydraulics Reducer/reliever on P2 Line mount manifoldRBAPXAN/LH-ADP — request assembly
- U5T Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldRBAPXAN/LH-U5T — request assembly
- WFL Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFL — request assembly
- WFM Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFM — request assembly
- WFN Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFN — request assembly
- WFO Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFO — request assembly
- WFP Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFP — request assembly
- WFQ Sun Hydraulics Ninety degree Line mount manifoldRBAPXAN/LH-WFQ — request assembly
Technical features
- Varying the analog input signal to the proportional solenoid provides a step-less control of pressure.
- This electro-proportional cartridge utilizes the Sun T-8A, 2-port cavity making it the ideal choice to use in conjunction with Sun's main stage cartridges. Separate pilot lines are eliminated and only one cavity needs to be machined to accommodate both the control and primary function. Note: All 2-port pilot stage control cartridges utilize the same cavity and are physically interchangeable. Functionality is the only consideration.
- All pressure ranges will drop to a setting of 0 with no analog input signal. The pressure ranges indicate the valve's area of acceptable performance.
- The L control (Manual Override - Adjustable) allows one to manually adjust the valve in case of an electrical failure. The L control also allows one to offset the pressure range. For instance, if an A range valve is mechanically offset to a setting of 1500 psi (105 bar), the new maximum will be 4500 psi (310 bar).
- The 'E' manual control assembly has a mechanical life expectancy of approximately 7,000 cycles.
- Damped construction provides stable operation over a wide range of operating conditions. Note: Models equipped with an 'M' control do not incorporate the dampening orifice in the solenoid armature.
- The momentary/twist override option "E" allows the operator to shift the valve by twisting the manual override clockwise 90 degrees.
- 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.
- Capable of operating with pressures up to 5000 psi.
- Low leakage levels in the closed position. (Reseat occurs at 85% of cracking pressure.)
- Coils are interchangeable with Sun's other full flow, solenoid operated valves and can be mounted on the tube in either direction.
- For optimum performance, an amplifier with current sensing and adjustable dither should be used. Dither should be adjustable between 100 - 250 Hz.
- NOTE: There is no upper limit to the pressure setting when using the M control. The more force you exert on the manual override, the higher the resulting pressure.
- High pilot capacity allows for operation of larger size main stage elements.
- Note: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value.
- 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_Amplifier-New (PDF 2 MB)
- TT_US_Cavity-New (PDF 522 KB)
- TT_US_Electro-Prop (PDF 1 MB)
- TT_US_Relief-N (PDF 656 KB)
- TT_US_coils-New (PDF 975 KB)
- rel-Prop_terms-definitionsN (PDF 3 MB)
CAD files
Frequently asked questions
Is RBAPXAN the same as RBAP-XAN?
Yes. Sun Hydraulics writes this part number as RBAPXAN. It is the model RBAP followed by the configuration code; hyphens, slashes and spaces are only dividers, so RBAPXAN, RBAP-XAN, RBAP XAN all refer to the same product.
Do you supply RBAPXAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including RBAPXAN, 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 do I get a kick-down relief to reset?
The kick-down relief acts much like a circuit breaker. When the pressure at the inlet (port 1) of the relief valve rises to the setting, the valve pops open and drops the pressure down to 100 psi or so. The valve stays open until flow through it stops. Shutting off the supply of oil will reset the valve; reversing pressure on the valve is a positive way of resetting it.
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.
How big is a drop of hydraulic oil?
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
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.
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.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/RBAP
