PREFACEJCZ(CZ)series axial-flowfans for marine or navy use series fans are designed and manufacwtured according to the standards of the state for GB11865<Marine Centrifugal Ventilator>,GB11864<Marine Expeosion-proof Axial Flow Fans><Rules and Regulations for the Construction and Classifi-cation of Sea-going Steel Ships>and<Rules and Regula-tions for the Construction of PLA Naval Ships>.This series of ventilators have been examined and provecd up to stand by the Register of Shipping of china and have got the certificate.They are also approved by the authority of shipping equipment and research Staff.USESJCZ ventilators can carry ordinary air,seaair containing salt fog and air containing oil fog and other corrosives.These ventilators are suitable for ventilation of all kinds of tanks in the naval and merchant ships.They can also be used for partly cooling.They can be used on land,either. JCZ ventilators can be matched with Y-J three phase naval induction motor or Y-H three phase marine induction motor(50Hz,380V or 60Hz,440V) and others.WORKING CONDITIONSambient temperature:-25~55°relative humidity of air:≤95%cyclical oscillation: 22.5~45° (oscillation cycle 5~10s)sustained horisontal tilting:15sustained vertical tilting:10vibration:existentshock:existent.JCZ type:The ventilator is manufactured with a built-in casing motor structure.The vane wheel is directly mounted on the motor shaft.The vanewsheel is made of anticorrosive cast aluminium alloy while the casing is made of welded common steel.In front of the vane wheel there is an inducer.Viewed from the motor side,the vane wheel rotates clockwise while in service the ventilator is allowed to rotate reversely.The ventilator can be installed vertically or horizontally and can also be installed on the deck or in the pipe.It may be used for pumping or inducing air.According to the user's need,we can supply hood together with JCZ type ventilator.MODELSThe models of ventilators are expressed by the first letter of the Chinese phonetic name,the outer diameter of the vane wheel,the power and the rotational speed of the motor,etc.For example:(JCL-30/1.5-1460) R180°(JCZ-90A/7.5—1460)Where:J-for naval ship useC-for merchant ship useL-centrifugal ventilatorZ-axialflow ventilator30-the outer diameter of the vane wheel,30cm90-the outer diameter of the vane wheel,90cm(circle integer)A-code for vane wheel15-the power of motor,1.5kw75-the power of motor,7.5kw1460-the standard rotational speed,1460r/min(50Hz)R180°-clockwise(right)rotation,the position of the wind opening-180.Introduction companyQingdao Yongjian Marine Machinery Manufacture Co., Ltd. Is a company specializing in ship ventilators,valves,marine fittings,pipe accessories,switches,marine radiators. Our company is of strong techicians,advanced technology and highly specialized production.The complete range of series,rich experiences and perfect inspection means make the peoducts suitable for your demand of all sorts. Our company has passed China Classification Society GB/T9001-2000-ISO9001:2008 quality managemaent system certification,peoduct according to national standards,ship production and testing standards. Marine products by the China Classification Society(CCS)Supervision,Inspection and certification of the factory,and to produce,manufacture.Consistent with the Nippon Kaiji Kyokai(NK),the United Kingdom Lloyd’s Register (LR),American Bureau of Shipping(ABS),Det Norske Veritas(DNV),Bureau Veritas(BV),Germany Lloyd’s Register of shipping(GL),the Russian Register of Shipping Bureau(RS),Korean Register of Shipping(KR),the Italian Classification Society(RIAN),Greece Classification Society(HR)ship classification society product design specifications. Our company produced marine centrifugal,axial fan,explosion-proof fan to reach more than 30varieties,more than 160specifications,by the experts to reach the domestic advanced level and be able to achieve(CCS) provides unlimited flight requests.With high efficiency,low noise,smooth running characteristics of a wise range of ventlation of ships,including explosion-proof fans for containing flammable,explosive gas ventilation of the cabin,but also to other applicable place. The marine valves made in our company mainly contain sluice valve,stop valve,check valve,storm valve,valvebox,butterfly and valve-cocks,etc.made of cast steel,castiron,cast-copper and nodular cast iron for the use of shipbuiding,petrochemical industry,machinery and construction. Qingdao Yongjian Marine Machinery Manufacture Co., Ltd.Will be “good market reputation,quality products in order to survive,strict management to effective”to provide with first-class products and services. Our company sincerely welcome the friends of all walks to come and cooperate with us.