... Avoids leakageHandle valve --- Easy to operateStainless steel flange --- Food grade,Stand temperature change Anti-suction design --- Avoids PE film ... fats(liquidandsolid),juices concentrates,syrups,water,wine,honey,food additives,fish sauce,soy sauce,vinegar.2. Industrial ... cleaning means,emulsions,glycerin,some kinds of paints,ink,liquid fertilizers,latex,transformer oils,other petrochemical products ...