Description: Single-Acting Needle Control Valves In Line, Model FT 1253/5 are offered in a wide range of pneumatic/hydraulic valves and fittings. Model FT 1253/5 are single-acting needle control in-line valves. These ensure an accurate control of the fluid in one direction and allow for free passage in the opposite direction. As an alternative to FT 257/5 where the working pressure does not exceed 210 bar and when ferrous material cannot he used, these are suitable for applications with air, gas & liquid in general. Same basic characteristics as the FT 257 series: full shut off via metal seal, simple setting of flow rates, secure against accidental needle withdrawal, secure needle position with locking screw inserted in the handwheel, provisions for panel mounting, for which special lock nut (G) is supplied (on request only), maximum working pressure is 210 bar. Maximum working pressure is 210 bar for all.