Model: FMDG
Electro-proportional 3-way flow control valve, meter in (740 Series)
Cavity: T-11A | Capacity:
Technical specifications
This valve is a 3-way, meter-in, electro-proportional throttle. The flow path, unenergized, has the supply blocked at port 1 and port 2 connected to tank at port 3. Energizing the coil generates a closing force on the spool, creating a metering orifice in the 1 to 2 direction that is proportional to the coil command current. The valve self-compensates in the 1 to 2 direction and with the addition of an external compensator will provide pressure compensated flow control. Flow in the 2 to 3 direction is not proportional.
- The transition between positions is closed.
- Using 2 3-ways to create a 4-way allows one to choose existing flow ranges instead of cutting a special spool.
- These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
- The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
- All ports will accept 5000 psi (350 bar).
- All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
- This valve can be used with both the 740 Series high-power coils and 747 Series hazardous location coils.
- A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
- Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
- 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.
- Hysteresis (with dither)<4%
- Hysteresis with DC input<8%
- Linearity (with dither)<2%
- Repeatability (with dither)<2%
- Recommended dither frequency140 Hz
- Deadband, nominal (as a percentage of input)60%
- Hysteresis (with dither)<4%
- Hysteresis with DC input<8%
- Linearity (with dither)<2%
- Repeatability (with dither)<2%
- Recommended dither frequency140 Hz
- Deadband, nominal (as a percentage of input)60%
What parts of the Sun cartridge valve are field serviceable?
What happens if I block the control flow (priority) port?
I have a heat problem, will Sun's priority flow control help?
How big is a drop of hydraulic oil?
What is the pressure drop through a flow control?
What is the compensating pressure of Sun's flow controls?
How accurate are Sun's flow controls?
What happens if I block the bypass port on a priority flow control?
Highlights
Technical Tips
Technical Information