PBBB-LAN – Sun Hydraulics Pilot-operated, pressure reducing valve
Part number: PBBBLAN · PBBB-LAN · PBBB LAN
Pilot-operated, pressure reducing valve. Cavity T-163A, capacity 5 gpm (20 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
PBBB-LAN overview
PBBBLAN (PBBB-LAN, PBBB LAN) is a Sun Hydraulics Sun Hydraulics Pilot-operated, pressure reducing valve, rated 5 gpm (20 L/min.) and installed in cavity T-163A. 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.
| PBBBLAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| PBBBLAN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| PBBBLAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-163A |
|---|---|
| Series | 0 |
| Capacity | 5 gpm (20 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Factory Pressure Settings Established at | blocked control port (dead headed) (blocked control port (dead headed)) |
| Control Pilot Flow | 7 - 10 in³/min. (0,11 - 0,16 L/min.) |
| 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 | .30 lb (0,15 kg) |
| Seal kit - Cartridge | Viton: 990163006 |
How to read PBBBLAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so PBBBLAN, PBBB-LAN, PBBB LAN are the same part.
| Model | PBBB — Sun Hydraulics Pilot-operated, pressure reducing valve |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — 75 - 3000 psi (5 - 210 bar), 200 psi (14 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
- W — Hex Wrench Adjustment
Adjustment Range options
- A — 75 - 3000 psi (5 - 210 bar), 200 psi (14 bar) Standard Setting
- W — 75 - 4500 psi (5 - 315 bar), 200 psi (14 bar) Standard Setting
- B — 75 - 1500 psi (5 - 105 bar), 200 psi (14 bar) Standard Setting
- N — 75 - 800 psi (5 - 55 bar), 200 psi (14 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-163A (53)
- J2A Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2A — request assembly
- J2B Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2B — request assembly
- J2H Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2H — request assembly
- J2I Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2I — request assembly
- J2T Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2T — request assembly
- J2U Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldPBBBLAN-J2U — request assembly
- J6A Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6A — request assembly
- J6B Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6B — request assembly
- J6H Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6H — request assembly
- J6I Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6I — request assembly
- J6T Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6T — request assembly
- J6U Sun Hydraulics Ninety degree with reverse flow check – sequence Line mount manifoldPBBBLAN-J6U — request assembly
Technical features
- Full reverse flow from reduced pressure (port 1) to inlet (port 2) may cause the main spool to close. If reverse free flow is required in the circuit, consider adding a separate check valve to the circuit.
- Minimum setting is 75 psi (5 bar) for all spring ranges.
- Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Recommended maximum inlet pressure is determined by the adjustment range. Ranges A, B, N, and Q are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Range W is tested with 5000 psi (350 bar) of inlet pressure.
- 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_Red-Rel (PDF 229 KB)
CAD files
Frequently asked questions
Is PBBBLAN the same as PBBB-LAN?
Yes. Sun Hydraulics writes this part number as PBBBLAN. It is the model PBBB followed by the configuration code; hyphens, slashes and spaces are only dividers, so PBBBLAN, PBBB-LAN, PBBB LAN all refer to the same product.
Do you supply PBBBLAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including PBBBLAN, 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.
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 back flow through a reducing valve from port 1 to port 2?
Yes. A reducing or reducing/relieving valve is normally open. If the pressure in the secondary circuit is less than the setting, it will be open.
2 caveats: (1) If the valve is in the reducing mode and you suddenly reverse the flow, the valve will not have time to open and will shift into relieving mode or (2) If the back flow generates a pressure drop through the valve that exceeds the setting, the valve will shift into the relieving mode.
When in doubt, use a reverse flow check.
I need a reducer on B. Can I connect the drain to A?
Yes. If you look in the sandwich section you will see that we offer many such packages. When you are pressurizing B, A is connected to tank, allowing the reducer to do its job. When you reverse, the drain or tank port of the reducer is pressurized by A. This increases the setting of the reducer and helps keep the reducer open in the reverse flow direction.
What do you mean by maximum differential?
Our reducing valves are outside-in valves; the supply pressure on the outside of the working parts is higher than the inside. At some pressure differential, the outside (sleeve) will close in on the piston and cause the valve to stick. A D range is adjustable from 25 to 800 psi with a maximum differential of 2000 psi. This means you could set the valve at 600 psi and expect it to work correctly with a supply pressure of 2600 psi. The valve may work at higher differentials, but we do not recommend it. The W and C ranges are tested over their entire range with an inlet pressure of 5000 psi. All direct-acting valves are tested with an inlet pressure of 5000 psi.
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/PBBB
