SUN HYDRAULICS
FXDA8BV

$161.43 USD

SUN HYDRAULICS
Material:FXDA8BV
Model:FXDA-8BV
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 FXDA8BV (FXDA8BV) is a fixed-orifice, pressure-compensated flow control valve designed to provide precise flow regulation for both meter-in and meter-out applications, especially in scenarios with significant pressure fluctuations. This valve features an integral pilot control cavity that accommodates any T8A pilot control cartridge, allowing for versatile operation through electro-proportional, solenoid, air pilot, or hydraulic pilot controls. The flow setting is user-specified and factory-set within a 10% tolerance of the requested value. With a capacity of 12 gpm (45 L/min) and a maximum operating pressure of 5000 psi (350 bar), this valve is well-suited for high-pressure applications. The FXDA8BV incorporates Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. Its sharp-edged orifice design helps maintain consistent flow despite changes in fluid viscosity. For installation, the main stage valve should be torqued to 45-50 lbf ft (61-68 Nm), while the T8A pilot control valve should be installed separately at its required torque value. Physically and functionally interchangeable with other 2-port flow control cartridges of the same frame size, the FXDA8BV offers flexibility in system design while ensuring reliable performance. It features a T5A cavity and has a compact form factor with a weight of just 0.40 lb (0.20 kg) and a hex size of 1 1/8 inches (28.6 mm). The use of Viton seals ensures compatibility with various hydraulic fluids, enhancing the valve's durability and longevity in demanding environments.

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 HYDRAULICSFXDA8BV

SUN HYDRAULICS
FXDA8BV