SUN HYDRAULICS
FXAMXFN

$56.79 USD

SUN HYDRAULICS
Material:FXAMXFN
Model:FXAM-XFN
Summary:Cartridge

Quantity in stock: 0

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics FXAMXFN (FXAMXFN) is a fixed orifice, pressure-compensated flow control valve designed for precise flow regulation in meter-in or meter-out applications, even under conditions of wide pressure fluctuations. This insert-style valve is intended to be integrated into a manifold or actuator, utilizing the T8DP cavity for installation. It supports a maximum operating pressure of 5000 psi (350 bar) at both ports 1 and 2, ensuring robust performance in demanding environments. The FXAMXFN features a sharp-edged orifice design that minimizes flow variations due to changes in fluid viscosity, enhancing its reliability and accuracy. Flow rates for this model vary across different settings: A Flow Rate at 32 cc/min (2.0 in\u00b3/min), B Flow Rate at 40 cc/min (2.5 in\u00b3/min), D and F Flow Rates at 48 cc/min (3.0 in\u00b3/min), H and J Flow Rates at 64 cc/min (4.0 in\u00b3/min), and L Flow Rate at 72 cc/min (4.5 in\u00b3/min). The valve incorporates Sun's floating style construction, which reduces the risk of internal parts binding due to excessive installation torque or machining variations. The FXAMXFN has a capacity of .5 gpm (2 L/min) with an internal hex size of 5/16 inches (8 mm) and should be installed with a torque between 20-25 lbf-ft (27-34 Nm). It offers a compensating pressure with spring force equating to about 100 psi (7 bar), allowing for effective circuit operation without excessive pressure drops. This flow control valve is ideal for applications requiring consistent flow management despite varying operational pressures, ensuring efficient system performance while minimizing heat generation during operation.

Description

Fixed-orifice, pressure-compensated flow controls provide precise flow regulation for meter-in or meter-out applications where there may be wide pressure fluctuations. A variety of flow rates are available. The THRU port at the top of the valve can be used as the outlet with port 2 blocked. See cavity drawing for details.

The sharp-edged orifice design minimizes flow variations due to viscosity changes.
This valve is what we call an Insert style. It is meant to be buried in a manifold or actuator. The cavity drawing for the T-8DP cavity contains detailed information which should be studied closely when applying this valve.
Will accept 5000 psi (350 bar) at ports 1 and 2.
Flow Tolerances A Flow Rate +/- 2.0 in³/min. (+/- 32 cc/min.) B Flow Rate +/- 2.5 in³/min. (+/- 40 cc/min.) D and F Flow Rates +/- 3.0 in³/min. (+/- 48 cc/min.) H and J Flow Rates +/- 4.0 in³/min. (+/- 64 cc/min.) L Flow Rate +/- 4.5 in³/min. (+/- 72 cc/min.)
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.

Cavity	T-8DP
Series	P
Capacity	.5 gpm2 L/min.
Maximum Operating Pressure	5000 psi350 bar
Valve Internal Hex Size	5/16 in.8 mm
Valve Installation Torque	20 - 25 lbf ft27 - 34 Nm

Show FAQ

What happens if I block the bypass port on a priority flow control?	The valve acts as a 2 port restrictive flow control.
How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
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 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 (not really) 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 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.

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SUN HYDRAULICS
FXAMXFN