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FT 257/5

Single-acting flow control valves available from size 1/8" to 2" BSPP size, max. working pressure 400 Bar / 320 Bar, adjustable oil flow rate from 0,5 to 200 Lt/min. (depending on the size)

Single-acting control
In line or panel mounting
Carbon steel
F - F Female - Female
In line single-acting flow control

Product code composition

Choose the different options below to configure the most useful product code for your needs.

The code will be generated and sent automatically by clicking on "Submit a request".

FT 257/5

* (BSPP - standard)


* (NBR - standard)
** (V - FPM - standard for stainless steel valves)


* (MA - standard - aluminium)
RA (Aluminium spoked)


* (no nut)
G (nut)

Special Version
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Technical information

The valves FT 257/5 have the function of regulating and, if necessary, to shut-off the flow in one direction, allowing a free flow in the opposite direction. Appreciated for their aesthetic characteristics that indulge positively the contructive directions of the equipments on which they are installed , they are also a reliable solution. The proper dimensioning has made possible to obtain, in a little space, a great mechanic resistance of the components. The spring in high-resistance material is housed in such a way that it does not close as a pack during the opening of the taper single-acting shutter valve. Like all the valves of the series FT 257 they ensure: • efficient metallic sealing; • flow linearity at the opening; • accurate control for a wide range of flow rate, thanks to the double reference system • wide range of the flow rate control; • impossibility for the needle to leave its seat even in the max. opening position; • stable positioning thanks to a screw inside the knob; • quick panel mounting (the ring nuts (G) are supplied on request). The check valve is set to 0,5 bar.