FDBALAN/LH – Sun Hydraulics Fully adjustable pressure compensated flow control valve with reverse flow check, Mild Steel, Zinc-Nickel
Part number: FDBALAN · FDBA-LAN · FDBA LAN
Fully adjustable pressure compensated flow control valve with reverse flow check. Cavity T-13A, capacity 6 gpm (23 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FDBA-LAN overview
FDBALAN (FDBA-LAN, FDBA LAN) is a Sun Hydraulics Sun Hydraulics Fully adjustable pressure compensated flow control valve with reverse flow check, rated 6 gpm (23 L/min.) and installed in cavity T-13A. 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.
| FDBALAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| FDBALAN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| FDBALAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-13A |
|---|---|
| Series | 1 |
| Capacity | 6 gpm (23 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Adjustment - No. of CCW Turns from Fully Closed to Fully Open | 5 |
| Valve Hex Size | 7/8 in. (22,2 mm) |
| Valve Installation Torque | 30 - 35 lbf ft (41 - 47 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 | .40 lb (0,20 kg) |
| Seal kit - Cartridge | Viton: 990010006 |
For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.
How to read FDBALAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FDBALAN, FDBA-LAN, FDBA LAN are the same part.
| Model | FDBA — Sun Hydraulics Fully adjustable pressure compensated flow control valve with reverse flow check |
|---|---|
| Control | L — Standard Screw Adjustment |
| Adjustment Range | A — .1 - 6 gpm (0,4 - 23 L/min.) |
| 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
- H — Calibrated Handknob with Detent Lock
- K — Handknob
- Y — Tri-Grip Handknob
- C — Tamper Resistant - Factory Set
- O — Handknob with Panel Mount
Adjustment Range options
- A — .1 - 6 gpm (0,4 - 23 L/min.)
- B — .1 - 2 gpm (0,4 - 8 L/min.)
- C — .1 - 1 gpm (0,4 - 4 L/min.)
- W — .1 - 5 gpm (0,4 - 20 L/min.)
- Y — .1 - 4 gpm (0,4 - 15 L/min.)
Seal Material options
- N — Buna-N
- L — Buna (low temp)
- 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-13A (155)
- A3C Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3C — request assembly
- A3D Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3D — request assembly
- A3K Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3K — request assembly
- A3L Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3L — request assembly
- A3V Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3V — request assembly
- A3W Sun Hydraulics Ninety degree, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A3W — request assembly
- A4A Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4A — request assembly
- A4B Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4B — request assembly
- A4H Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4H — request assembly
- A4I Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4I — request assembly
- A4J Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4J — request assembly
- A4T Sun Hydraulics Dual cavity, accepts standard and weatherized coils Line mount manifoldFDBALAN/LH-A4T — request assembly
Technical features
- All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
- A balanced adjustment mechanism allows for easy adjustment even at high pressures.
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- Minimum leakage is .1 gpm (0,4 L/min) when the adjustment mechanism is turned to the shut-off position.
- 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.
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_check-flow1-New (PDF 537 KB)
CAD files
Frequently asked questions
Is FDBALAN the same as FDBA-LAN?
Yes. Sun Hydraulics writes this part number as FDBALAN. It is the model FDBA followed by the configuration code; hyphens, slashes and spaces are only dividers, so FDBALAN, FDBA-LAN, FDBA LAN all refer to the same product.
Do you supply FDBALAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FDBALAN, 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 happens if I block the bypass port on a priority flow control?
The valve acts as a 2 port restrictive flow control.
What is the compensating pressure of Sun's flow controls?
The spring force in our flow controls equates to about 100 psi (7 bar). This is high enough to give the valves acceptable capacity and not too high for proper circuit operation. 100 psi (7 bar) is the spring force; at the upper end of the flow control's range, the drop through the valve will be as high as 250 psi (17 bar) before it starts modulating.
How big is a drop of hydraulic oil?
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
What is the pressure drop through a flow control?
In a meter-in flow control circuit if the pump is set at 3000 psi and the load is 2000 psi the drop through the flow control is 1000 psi. In a meter-out circuit with the load at 2000 psi the drop through the flow control is 2000 psi.
How accurate are Sun's flow controls?
We claim +/- 10%. We set to +/- 5% in production testing to allow for differences in customers' conditions. If you want accuracy, stay in the bottom 2/3rds of the range. Our 12 gpm (45 L/min.) flow controls are quite flat at 9 gpm (34 L/min.) and dead flat below 6 gpm (23 L/min.), until you get to the bottom of the range. Below about .25 gpm (1 L/min.), spool leakage and orifice conditions start to limit accuracy.
I have a heat problem, will Sun's priority flow control help?
I am afraid not. Unless you are overflowing your current valve and correctly size ours, you are not likely to notice any improvement. Priority flow controls are not efficient devices. They are an easy way to get more than 1 source of oil from 1 pump but they can generate a lot of heat. Try to size your actuators so the pressures are similar on both the priority and the bypass circuits. If you can't do that, try to have the lower flow leg be the lower pressure. The pump pressure is determined by whichever leg is higher and if there is flow that is taking a pressure drop that is not doing work it is creating heat.
What happens if I block the control flow (priority) port?
All flow is blocked, hence the term priority. The priority flow has to be satisfied.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/FDBA
