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EFC Series Electronically Adjustable Pressure Compensated Proportional Flow Controls, Up To 30 GPM & 3000 PSI

Coil

 Standard 12VDC: 9.6 ohms, 15 watts, 1.0 amps max. Optional 24VDC: 48 ohms, 15 watts, 0.5 amps max.

Group Description

 The Brand EFC flow control is an electronically controlled version of the original FC51 style flow control valve. The control flow port (CF) and the excess flow port (EX) remain usable and pressure compensated. As the current to the solenoid increases the variable orifice moves proportionally similar to positioning the rotary side lever on the manual FC’s. The solenoid is connected to the EC Series controls which can be purchased with the EFC valve. The choice of a dashpot size allows you to select a valve that responds to the control box at different rates. Other options are 2-port, free reverse flow and high lift ball spring relief. 2-PORT: The 2-port (2P) option is a modified version of the standard 3-port EFC. This option lets you use the control flow port while the excess port is plugged. A special compensator spool eliminates hunting that can occur between pressure compensated valves and pumps. The 2-port can be converted to a 3-port (by removing the EX plug), but it will not have the same characteristics as the standard 3-port. FREE REVERSE FLOW: The free reverse flow option was designed to be used primarily where cylinders and motors are needed to go in reverse. The flow can only go in reverse from controlled flow (CF) to the inlet (IN). Flow is not metered when it goes in reverse.

Features

 Diamond honed spool bore provides consistent spool fit with low leakage • O-ring ports • Every EFC is tested for shutoff, linearity, max. flow, crack open and pressure compensation • Standard 3-port allows for pressure compensated flow out of the CF and EX ports • Manual override • Optional 2-port allows for pressure compensated flow out of CF port • Optional free reverse flow allows fluid to move from the CF port to the inlet • Optional high lift relief.

Internal Leakage

 50 ml/minute @ 1000 PSI on EX port.

Materials

 Ductile cast iron body. Heat treated steel spools. Buna N O-rings. Heat treated free reverse check seat.

Pressure Rating

 3000 PSI

Pulse Frequency

 90 to 115 hz

Recommended Filtration

 10 micron

Response Time

 Standard 0.035'' dash pot: 375 ms. 0.020'' dash pot: 900 ms. 0.093'' dash pot: 175 to 350 ms, flow dependant.

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