FCBC-LCN – Sun Hydraulics Fixed-orifice pressure compensated flow control valve with reverse flow check
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Part number: FCBCLCN · FCBC-LCN · FCBC LCN
Fixed-orifice pressure compensated flow control valve with reverse flow check. Cavity T-162A, capacity 3 gpm (11 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FCBC-LCN overview
FCBCLCN (FCBC-LCN, FCBC LCN) is a Sun Hydraulics Sun Hydraulics Fixed-orifice pressure compensated flow control valve with reverse flow check, rated 3 gpm (11 L/min.) and installed in cavity T-162A. 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.
| FCBCLCN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| FCBCLCN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-162A |
|---|---|
| Series | 0 |
| Capacity | 3 gpm (11 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| 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 | 9/16 in. (15 mm) |
| Locknut Torque | 80 - 90 lbf in. (9 - 10 Nm) |
| Model Weight | .30 lb (0,15 kg) |
| Seal kit - Cartridge | Viton: 990162006 |
How to read FCBCLCN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FCBCLCN, FCBC-LCN, FCBC LCN are the same part.
| Model | FCBC — Sun Hydraulics Fixed-orifice pressure compensated flow control valve with reverse flow check |
|---|---|
| Control | L — Tuning Adjustment |
| Flow Rate | C — .106 gpm (.4 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
- C — Tamper Resistant - Factory Set
- K — Handknob
- L — Tuning Adjustment
- X — Not Adjustable
Flow Rate options
- C — .106 gpm (.4 L/min.)
- D — .132 gpm (.49 L/min.)
- F — .198 gpm (.75 L/min.)
- G — .291 gpm (1.10 L/min.)
- H — .41 gpm (1.55 L/min.)
- J — .528 gpm (2.0 L/min.)
- K — .661 gpm (2.50 L/min.)
- L — .819 gpm (3.10 L/min.)
- M — 1.057 gpm (4.00 L/min.)
- N — 1.321 gpm (5.00 L/min.)
- P — 1.585 gpm (6.0 L/min.)
- R — 2.008 gpm (7.6 L/min.)
- S — 2.378 gpm (9.0 L/min.)
- T — 2.642 gpm (10.0 L/min.)
- V — 3.012 gpm (11.40 L/min.)
Seal Material options
- N — Buna-N
- V — Viton
Material/coating options
- /AP — Stainless Steel, Passivated
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-162A (56)
- AAA Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAA — request assembly
- AAB Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAB — request assembly
- AAC Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAC — request assembly
- AAH Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAH — request assembly
- AAI Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAI — request assembly
- AAJ Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAJ — request assembly
- AAT Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAT — request assembly
- AAU Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAU — request assembly
- AAV Sun Hydraulics Ninety degree Line mount manifoldFCBCLCN-AAV — request assembly
- ABA Sun Hydraulics ISO 02: P to T Sandwich manifoldFCBCLCN-ABA — request assembly
- ABB Sun Hydraulics ISO 02: A to B and B to A Sandwich manifoldFCBCLCN-ABB — request assembly
- ABC Sun Hydraulics ISO 02: A and B to T Sandwich manifoldFCBCLCN-ABC — request assembly
Technical features
- Factory set flow valve ratings are within +/- 15% of the nominal range/setting.
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- The tuneable control option provides +/- 20% variation from the nominal factory pre-set flow. Turn the adjustment clockwise to increase and counterclockwise to decrease.
- 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.
- 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
CAD files
Frequently asked questions
Is FCBCLCN the same as FCBC-LCN?
Yes. Sun Hydraulics writes this part number as FCBCLCN. It is the model FCBC followed by the configuration code; hyphens, slashes and spaces are only dividers, so FCBCLCN, FCBC-LCN, FCBC LCN all refer to the same product.
Do you supply FCBCLCN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FCBCLCN, 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 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 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.
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/FCBC
