Please in attach you can find photos ball valve. I need 1000pcs DN 15 size and 2000pcs DN 25 size. SpecificationsSize valves DN 15 to DN 25 (22)Versions with and without ventilationThe possibility of mounting the microswitch on the valve body, which will indicate an open (or closed) stateDesigned for the air pressure 0-10barIt must seal in the temperature range from -40 ° C to + 70 ° C (-50 ° C would be an advantage)Stainless steel / brass.