
In-line non-return valve made of stainless steel (AISI 304 or AISI 316), spring loaded, with seal ring available in NBR, FPM and PTFE. Threaded female gas connections according to UNI ISO 228/1. Surface treatment: degreasing, pickling and electropolishing, except for valves with NBR seal. The SMALL check valve is generally used in civil and industrial hydraulic systems in the outlet position where it is necessary to avoid fluid return and works at a nominal working pressure (PN) of 16 bar.