FRDAXAN – Sun Hydraulics Fixed-orifice, bypass/restrictive, priority, flow control valve, Standard Material/Coating
Part number: FRDAXAN · FRDA-XAN · FRDA XAN
Fixed-orifice, bypass/restrictive, priority, flow control valve. Cavity T-2A, capacity 12 gpm (45 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FRDA-XAN overview
FRDAXAN (FRDA-XAN, FRDA XAN) is a Sun Hydraulics Sun Hydraulics Fixed-orifice, bypass/restrictive, priority, flow control valve, rated 12 gpm (45 L/min.) and installed in cavity T-2A. 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.
| FRDAXAN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| FRDAXAN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-2A |
|---|---|
| Series | 2 |
| Capacity | 12 gpm (45 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Maximum Input Flow | 30 gpm (120 L/min.) |
| Valve Hex Size | 1 1/8 in. (28,6 mm) |
| Valve Installation Torque | 45 - 50 lbf ft (61 - 68 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: 990202006 |
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 FRDAXAN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FRDAXAN, FRDA-XAN, FRDA XAN are the same part.
| Model | FRDA — Sun Hydraulics Fixed-orifice, bypass/restrictive, priority, flow control valve |
|---|---|
| Control | X — Not Adjustable |
| Setting Range | A — Replaceable Orifice .1 - 12 gpm (0,4 - 45 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 — Tuning Adjustment
- K — Handknob
- X — Not Adjustable
- C — Tamper Resistant - Factory Set
- O — Handknob with Panel Mount
Setting Range options
- A — Replaceable Orifice .1 - 12 gpm (0,4 - 45 L/min.)
- B — Permanent Orifice .1 - 12 gpm (0,4 - 45 L/min.)
Seal Material options
- N — Buna-N
- V — Viton
- E — EPDM
Material/coating options
- /AP — Stainless Steel, Passivated
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-2A (544)
- 3BC Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BC — request assembly
- 3BD Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BD — request assembly
- 3BK Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BK — request assembly
- 3BL Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BL — request assembly
- 3BV Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BV — request assembly
- 3BW Sun Hydraulics Cushion lock with shuttle Line mount manifoldFRDAXAN-3BW — request assembly
- 4BC Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BC — request assembly
- 4BD Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BD — request assembly
- 4BK Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BK — request assembly
- 4BL Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BL — request assembly
- 4BV Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BV — request assembly
- 4BW Sun Hydraulics Cushion lock with make up checks Line mount manifoldFRDAXAN-4BW — request assembly
Technical features
- Customer must specify a flow rating. Factory set flow ratings are within +/- 10% of the requested setting.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
- Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- Both priority and bypass flow are usable up to the system operating pressure.
- Priority remains relatively constant regardless of variation in input flow.
- Bypass flow is not available until priority flow requirements are satisfied.
- Pressure at the bypass port (port 2) may exceed pressure at the priority port (port 3).
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- A tuneable adjustment control option provides up to +/- 25% variation from the nominal factory pre-set flow. Adjustment is done with +/- 3 turns of the adjust screw. Screw in (CW) to increase flow.
- 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_check-flow1-New (PDF 537 KB)
CAD files
Frequently asked questions
Is FRDAXAN the same as FRDA-XAN?
Yes. Sun Hydraulics writes this part number as FRDAXAN. It is the model FRDA followed by the configuration code; hyphens, slashes and spaces are only dividers, so FRDAXAN, FRDA-XAN, FRDA XAN all refer to the same product.
Do you supply FRDAXAN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FRDAXAN, 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.
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 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.
What parts of the Sun cartridge valve are field serviceable?
Manufacturer reference: https://www.sunhydraulics.com/model/FRDA
