Deltrol EF40B Brass Flow Control Valve – 1″ NPT

The Deltrol EF40B is a precision adjustable flow control valve designed to deliver smooth, reliable flow regulation in hydraulic and fluid power systems. Featuring a free-reverse-flow design, the EF40B allows controlled flow in one direction while permitting unrestricted flow in the opposite direction, making it ideal for speed control and system balancing applications.

Constructed from durable brass and rated for high operating pressures, the EF40B provides excellent corrosion resistance, long service life, and consistent performance in demanding industrial environments. The easy-read adjustment knob enables precise flow setting and quick visual confirmation, simplifying setup and maintenance.