Made from stainless steel 18/8/2 (AISI 316 / DIN 1.4401 & ASTM – CF8M, DIN 1.4408) The valve shown in FIG. 300F is a full open type valve, two positions full open or fully closed. This valve is fully submersed in the controlled liquid. It is recommended to install a retention valve in fron of the main valve FIG. – 300. Silencing system. When operated with higher liquid pressure the closing of the valve is better. This value is also suitable for foam type liquids. With the vertically sliding float it is possible to regulate the level of liquid. Connection with Gas thread cylindrical DIN – ISO 228/1985. Nominal pressure PN – 16, maximum variable pressure 10 bar.