... Pattern,Regular Pattern,Venturi Pattern,Full Bore Pattern8,Operated way: Handwheel, Gear, Pneumatic, Electric Actuator.Advantages:1, ... (Rockwell hardness HRC90) are second after diamond.2, This valve has excellent wear resistance, corrosive resistance, ablative resistance ... four times longer than that of Titanium alloy valve and Monel valve. Applicable Areas:power plant desulfurization, deslagging, ...