... foot, legs, outlet with valve, acid diaphragm pump. )Caustic tank( Vertical, PU insulating, , with manhole, vent, adjustment foot, legs, outlet with valve, temprature meter, caustic ... insulating, SS304 inside and outer side wall, with manhole, vent, adjustment foot, legs, outlet with valve, temprature meter. )Tubular heat exchanger( Heat the ...