ALTITUDE CONTROL VALVE The Altitude valve maintains the maximum high water level with consistent repeat. The Altitude valve shall close tightly on high level set point and remain closed. Materials of valve body: Cast Iron, Ductile Iron, Bronze & Stainless Steel Specification: JIS, ANSI, ISO/DIN/BS4504. Test Pressure Ductile Iron 25bar Working Pressure Ductile Iron Stainless Steel NO Item Name 1 Cover Stainless steel Stainless Steel Stainless steel Stainless steel Stainless Steel Stainless steel Stainless steel Cast Iron Stainless steel Cast Iron 6 Diaghragm Fixed Bar Bronze Stainless steel Stainless steel Stainless steel R Altitude Pilot Valve Stainless steel Stainless steel Stainless steel Stainless steel Stainless steel Cast Iron Flange End Water level: 2 ~ 15 m 10 ~ 40 m Please remove impurities or metal dusts inside the pipe thoroughly. If possible, please add filter to prevent pipe blocking. Adjustment data: Altitude pilot valve #R: Turn adjusting screw clockwise to increase reservoir water level.