... water level control valve 1,Size:2"-13"control valve 2,DN: DN15-DN200 3,Materials:ceramic 4,Certificates:ISO9001 Ceramic water level control valve ... insulation, and small thermal expansion.3, The manufacture of the ball uses advanced grinding equipment and technology, ... two to four times longer than that of Titanium alloy valve and Monel valve. Applicable Areas:power plant desulfurization, deslagging ...