DVBP-8FN – Sun Hydraulics 3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 to 2 open, 3 blocked)
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Part number: DVBP8FN · DVBP-8FN · DVBP 8FN
3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 to 2 open, 3 blocked). Cavity T-21A, capacity 7 gpm (28 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
DVBP-8FN overview
DVBP8FN (DVBP-8FN, DVBP 8FN) is a Sun Hydraulics Sun Hydraulics 3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 to 2 open, 3 blocked), rated 7 gpm (28 L/min.) and installed in cavity T-21A. 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.
| DVBP8FN | Buna-N sealsBuna-N |
|---|---|
| DVBP8FV | Viton sealsViton |
Specifications
| Cavity | T-21A |
|---|---|
| Series | 1 |
| Capacity | 7 gpm (28 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Control Pilot Flow | 7 - 10 in³/min. (0,11 - 0,16 L/min.) |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi (30 cc/min.@70 bar) |
| Pilot Control Cavity | T-8A |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 30 - 35 lbf ft (41 - 47 Nm) |
| Model Weight | .50 lb (0,25 kg) |
| Seal kit - Cartridge | Viton: 990021006 |
Compound cartridge (pilot and main stage) assembly information is provided for reference only. Cartridges must be ordered separately and assembled at point of use.
How to read DVBP8FN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so DVBP8FN, DVBP-8FN, DVBP 8FN are the same part.
| Model | DVBP — Sun Hydraulics 3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 to 2 open, 3 blocked) |
|---|---|
| Control | 8 — T-8A Cavity |
| Minimum Control Pressure | F — 100 psi (7 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
- 8 — T-8A Cavity
Minimum Control Pressure options
- F — 100 psi (7 bar)
Seal Material options
- N — Buna-N
- V — Viton
Manifold & standard assemblies
Sun manifolds for cavity T-21A (54)
- M4A Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4A — request assembly
- M4B Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4B — request assembly
- M4C Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4C — request assembly
- M4I Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4I — request assembly
- M4J Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4J — request assembly
- M4K Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4K — request assembly
- M4T Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4T — request assembly
- M4U Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4U — request assembly
- M4V Sun Hydraulics Ninety degree with reverse flow check – reducing Line mount manifoldDVBP8FN-M4V — request assembly
- MAA Sun Hydraulics Ninety degree Line mount manifoldDVBP8FN-MAA — request assembly
- MAB Sun Hydraulics Ninety degree Line mount manifoldDVBP8FN-MAB — request assembly
- MAC Sun Hydraulics Ninety degree Line mount manifoldDVBP8FN-MAC — request assembly
Technical features
- Port 3 can be used as a work port.
- The flow path between port 2 and port 3 is bidirectional.
- 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.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- The flow path between port 1 and port 2 is bidirectional.
- There must be a pressure source at port 1, relative to port 4, to shift the valve.
- The -8 control option allows the pilot control valve to be incorporated directly into the end of the directional cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include solenoid operation, air pilot operation, and hydraulic pilot operation. See Pilot Control Cartridges.
- Leakage listed in technical data is for each path.
- 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_PCDirectional-New_1 (PDF 630 KB)
CAD files
Frequently asked questions
Is DVBP8FN the same as DVBP-8FN?
Yes. Sun Hydraulics writes this part number as DVBP8FN. It is the model DVBP followed by the configuration code; hyphens, slashes and spaces are only dividers, so DVBP8FN, DVBP-8FN, DVBP 8FN all refer to the same product.
Do you supply DVBP8FN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including DVBP8FN, 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 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?
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/DVBP
