PBHCBBV – Sun Hydraulics Air-controlled, pilot-operated, pressure reducing valve, Viton seals
Part number: PBHCBBN · PBHC-BBN · PBHC BBN
Air-controlled, pilot-operated, pressure reducing valve. Cavity T-17A, capacity 40 gpm (160 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
PBHC-BBN overview
PBHCBBN (PBHC-BBN, PBHC BBN) is a Sun Hydraulics Sun Hydraulics Air-controlled, pilot-operated, pressure reducing valve, rated 40 gpm (160 L/min.) and installed in cavity T-17A. 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.
| PBHCBBN | Buna-N sealsBuna-N |
|---|---|
| PBHCBBV | Viton sealsViton |
Specifications
| Cavity | T-17A |
|---|---|
| Series | 3 |
| Capacity | 40 gpm (160 L/min.) |
| Maximum Operating Pressure | 2000 psi (140 bar) |
| Pilot Ratio | 20:1 |
| Control Pilot Flow | 15 - 20 in³/min. (0,25 - 0,33 L/min.) |
| Maximum Air Pressure | 150 psi (10,5 bar) |
| Valve Hex Size | 1 1/4 in. (31,8 mm) |
| Valve Installation Torque | 150 - 160 lbf ft (203 - 217 Nm) |
| Adjustment Screw Internal Hex Size | 5/32 in. (4 mm) |
| Locknut Hex Size | 9/16 in. (15 mm) |
| Locknut Torque | 80 - 90 lbf in. (9 - 10 Nm) |
| Model Weight | 1.30 lb (0,60 kg) |
| Seal kit - Cartridge | Viton: 990017006 |
How to read PBHCBBN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so PBHCBBN, PBHC-BBN, PBHC BBN are the same part.
| Model | PBHC — Sun Hydraulics Air-controlled, pilot-operated, pressure reducing valve |
|---|---|
| Control | B — External 4-SAE 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
- B — External 4-SAE Port
Operating Range options
- B — 50 - 1500 psi (3,5 - 105 bar)
Seal Material options
- N — Buna-N
- V — Viton
Manifold & standard assemblies
Sun manifolds for cavity T-17A (377)
- BJO Sun Hydraulics ISO 05 – X&Y: On P, port 3 to T Sandwich manifoldPBHCBBV-BJO — request assembly
- BK2 Sun Hydraulics ISO 07: Reducer on A with reverse flow check Sandwich manifoldPBHCBBV-BK2 — request assembly
- BK4 Sun Hydraulics ISO 07: Sequence into A with reverse flow check Sandwich manifoldPBHCBBV-BK4 — request assembly
- BK5 Sun Hydraulics ISO 07: Sequence into B with reverse flow check Sandwich manifoldPBHCBBV-BK5 — request assembly
- BK6 Sun Hydraulics ISO 07: Sequence out of A with reverse flow check Sandwich manifoldPBHCBBV-BK6 — request assembly
- BK7 Sun Hydraulics ISO 07: Sequence out of B with reverse flow check Sandwich manifoldPBHCBBV-BK7 — request assembly
- BK8 Sun Hydraulics ISO 07: Cushion lock Sandwich manifoldPBHCBBV-BK8 — request assembly
- BK9 Sun Hydraulics ISO 07: Reducer on A and B with reverse flow check Sandwich manifoldPBHCBBV-BK9 — request assembly
- BKA Sun Hydraulics ISO 07: On A, port 3 to B Sandwich manifoldPBHCBBV-BKA — request assembly
- BKB Sun Hydraulics ISO 07: On B, port 3 to A Sandwich manifoldPBHCBBV-BKB — request assembly
- BKC Sun Hydraulics ISO 07: On A, port 3 external Sandwich manifoldPBHCBBV-BKC — request assembly
- BKJ Sun Hydraulics ISO 07: Reducer on B with reverse flow check Sandwich manifoldPBHCBBV-BKJ — request assembly
Technical features
- All three-port pressure reducing and reducing/relieving cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size). When considering mounting configurations, it is sometimes recommended that a full capacity return line (port 3) be used with reducing/relieving cartridges.
- 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.
- The pressure at port 3 determines the minimum valve setting and should not exceed 1000 psi (70 bar).
- The full adjustment range is 50 to 1500 psi (3,5 to 105 bar).
- Maximum air pressure should not exceed 150 psi (10,5 bar) due to the strength of the diaphragm.
- Maximum pressure differential, inlet to outlet, should not exceed 3000 psi (210 bar).
- Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
- The air control feature allows explosion proof remote control.
- 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 PBHCBBN the same as PBHC-BBN?
Yes. Sun Hydraulics writes this part number as PBHCBBN. It is the model PBHC followed by the configuration code; hyphens, slashes and spaces are only dividers, so PBHCBBN, PBHC-BBN, PBHC BBN all refer to the same product.
Do you supply PBHCBBN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including PBHCBBN, 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.
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 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.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/PBHC
