Product discription: Size: 2"--32" or DN50--800mm Pressure: PN1.0--2.5MPa or Class 150--300lbs Material: Cast iron, cast steel, carbon steel, stainless steel. Technical standard: APT 6D, APT 598, ANSI B 16.10, ANSI B 16.5 Applicable Medium: Oil, water, etc. This valve is applicable for the automatic water supply system for various water tanks, reservoirs and water towers in factories, mines and urban constructions. Besides, it can be used as control valve for circulating water supply of normal pressure boilers. Its working principle is that, when reservoir or internal water inside inlet pipe will push valve plate upward, and valve will open to supply water; When water level rises to control valve, float valve will close and piston moves downwards to shut off valve plate, here valve stops water supply
