Drossel-Rückschlagventil

Tognella In line single-acting flow control valves

Technical description
The valves FT 1251/5-01 guarantee precise flow regulation in one direction and full free flow in opposite direction thanks to the equipment of single-acting unit with ball guide. They are an alternative to FT 257/5 where the working pressure does not exceed 210 bar or where ferrous materials cannot be used. They are ideal for use with fluids other than oil ( such as: air, gas, and liquids in general ). They have the same characteristics as the FT 257 series:  • efficient metallic sealing; • flow linearity at the opening; • simple setting of flow rates; • secure against accidental needle lift-out; • secure needle positio; • panel mounting provision, for which special lock nuts (G) are is supplied on request.