SUN HYDRAULICS
FXDA8AN

$154.98 USD

SUN HYDRAULICS
Material:FXDA8AN
Model:FXDA-8AN
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 FXDA8AN (FXDA8AN) is a fixed-orifice, pressure-compensated flow control valve designed for precise flow regulation in meter-in or meter-out applications, especially where there may be wide pressure fluctuations. This valve features an integral pilot control cavity that accepts any T8A pilot control cartridge, allowing for enhanced operational flexibility. The flow setting is user-specified and factory-set within a 10% accuracy of the requested value. It incorporates a sharp-edged orifice design to minimize flow variations due to viscosity changes and employs Sun\u2019s floating style construction to reduce the risk of internal part binding caused by excessive installation torque or machining variations. This model has a capacity of 12 gpm (45 L/min) and can operate at a maximum pressure of 5000 psi (350 bar). The valve has a T5A cavity and requires an installation torque between 45 to 50 lbf ft (61 to 68 Nm). It weighs approximately .40 lb (.20 kg) and uses Viton seals, with seal kit part number 990203006 available for maintenance needs. The FXDA8AN allows for the direct incorporation of various pilot control cartridges into its end via the T8A cavity, which are sold separately and include options such as electro-proportional, solenoid, air pilot, and hydraulic pilot operations. All two-port flow control cartridges from Sun Hydraulics are physically and functionally interchangeable within a given frame size. However, cartridge extension dimensions from the mounting surface may differ. This product is ideal for users needing reliable flow control in systems experiencing variable pressures while maintaining high accuracy across its operational range.

Description

This valve is a fixed-orifice, pressure-compensated flow control valve with an integral pilot control cavity. The pilot control cavity will accept any T-8A pilot control cartridge. This type of valve provides precise flow regulation for meter-in or meter-out applications where there may be wide pressure fluctuations. The flow setting is specified by the user and is set at the factory.

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.
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.
The sharp-edged orifice design minimizes flow variations due to viscosity changes.
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-5A
Series	2
Capacity	12 gpm45 L/min.
Maximum Operating Pressure	5000 psi350 bar
Pilot Control Cavity	T-8AT-8A
Valve Hex Size	1 1/8 in.28,6 mm
Valve Installation Torque	45 - 50 lbf ft61 - 68 Nm
Model Weight	.40 lb0,20 kg
Seal kit - Cartridge	Viton: 990-203-006

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.

SUN HYDRAULICSFXDA8AN

SUN HYDRAULICS
FXDA8AN