FXDA8-AN – Sun Hydraulics Ventable fixed-orifice, pressure compensated flow control valve with integral T-8A control cavity
Roll over image to zoom in
Part number: FXDA8AN · FXDA8-AN · FXDA8 AN
Ventable fixed-orifice, pressure compensated flow control valve with integral T-8A control cavity. Cavity T-5A, capacity 12 gpm (45 L/min.). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
FXDA8-AN overview
FXDA8AN (FXDA8-AN, FXDA8 AN) is a Sun Hydraulics Sun Hydraulics Ventable fixed-orifice, pressure compensated flow control valve with integral T-8A control cavity, rated 12 gpm (45 L/min.) and installed in cavity T-5A. 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.
| FXDA8AN | Buna-N sealsBuna-N |
|---|---|
| FXDA8AV | Viton sealsViton |
| FXDA8AE | EPDM sealsEPDM |
Specifications
| Cavity | T-5A |
|---|---|
| Series | 2 |
| Capacity | 12 gpm (45 L/min.) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Pilot Control Cavity | T-8A |
| Valve Hex Size | 1 1/8 in. (28,6 mm) |
| Valve Installation Torque | 45 - 50 lbf ft (61 - 68 Nm) |
| Model Weight | .40 lb (0,20 kg) |
| Seal kit - Cartridge | Viton: 990203006 |
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 FXDA8AN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so FXDA8AN, FXDA8-AN, FXDA8 AN are the same part.
| Model | FXDA8 — Sun Hydraulics Ventable fixed-orifice, pressure compensated flow control valve with integral T-8A control cavity |
|---|---|
| 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. |
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
Manifold & standard assemblies
Sun manifolds for cavity T-5A (106)
- CDX Sun Hydraulics ISO 08: T to A and B Sandwich manifoldFXDA8AN-CDX — request assembly
- DAA Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAA — request assembly
- DAB Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAB — request assembly
- DAC Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAC — request assembly
- DAD Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAD — request assembly
- DAI Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAI — request assembly
- DAJ Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAJ — request assembly
- DAK Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAK — request assembly
- DAL Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAL — request assembly
- DAT Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAT — request assembly
- DAU Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAU — request assembly
- DAV Sun Hydraulics Ninety degree Line mount manifoldFXDA8AN-DAV — request assembly
Technical features
- Customer must specify a flow rating. Factory set flow ratings are within +/- 10% of the requested setting.
- Note: With the -8 control option, the main stage valve should first be installed to the correct torque value. The T-8A pilot control valve should then be installed into the main stage valve to its required torque value.
- The -8 control option allows the pilot control valve to be incorporated directly into the end of the flow control cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include electro-proportional, solenoid, air pilot, and hydraulic pilot operation. See Pilot Control Cartridges for more information.
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- 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 FXDA8AN the same as FXDA8-AN?
Yes. Sun Hydraulics writes this part number as FXDA8AN. It is the model FXDA8 followed by the configuration code; hyphens, slashes and spaces are only dividers, so FXDA8AN, FXDA8-AN, FXDA8 AN all refer to the same product.
Do you supply FXDA8AN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including FXDA8AN, 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 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.
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/FXDA8
