... .Viewed from the motor side,the vane wheel rotates clockwise while in service the ventilator is ... also be installed on the deck or in the pipe.It may be used for pumping or ... Ltd. Is a company specializing in ship ventilators,valves,marine fittings,pipe accessories,switches,marine radiators.Our ... .Will be “good market reputation,quality products in order to survive,strict management to effective”to ...