Features: 1.the volute select the high quality cold rolling steel plate either the pot galvanize steel plate knee bend weld the system or use nip the shape of the mouth type manufacture. Its line is the logarithmic spiral curve; the lift-drag ratio is good. 2.The air blower air outlet may 0°, 90°, 180°, 270° four kind of position installments, like the following chart. 3. Before the impeller central disk, side the plate, the curved circular arc leaf blade is the ramming formation, the impeller assembly uses rolls the rivet. The impeller transient equilibrium quality rank is the G5.6 level. 4.The main axle use the high quality carbon steel to make and to pass through the quenching and tempering, phosphorization rust prevention processing, the safety performance is good. 5. The inlet use the high quality steel plate after the spinning formation, guaranteed that the air enters the impeller to import the section evenly, reduces the flowing to lose greatly, raises impeller's efficiency. 6.The air blower uses outside parts of rotor low noise three-phase asynchronous motor. This electrical machinery has the axis to be fixed, outer covering revolving characteristic. The impeller installs in the electrical machinery outer covering, revolves the direct drive by the electrical machinery outer covering. This electrical machinery may use the three-phase pressure regulator; the controllable fine jade pressure regulator, the frequency changer ,the stepless speed regulation and so on methods, adapts the system load changeable request. Product Specification and Technique Parameter: Model No. technique parameter Model No. technique parameter Air Flow (m3/h) pressure PA Noise scopedB) Power KW Air Flow (m3/h) pressure PA Entire pressure scopedB) Power KW TRW-225 1000-4000 200-800 62-64 2 TRW-630 4500-30000 150-2000 68-71.5 11 TRW-250 1500-6000 200-1000 61.5-64.5 2.2 TRW-710 5000-40000 200-2000 77-77.98 15 TRW-280 1800-8000 200-1500 63-66 3 TRW-800 6000-50000 100-2000 76-78.5 18.5 TRW-315 2000-10000 200-1600 66-68.5 4 TRW-900 10000-80000 100-20000 78-78.5 22 TRW-355 2500-12000 200-1700 67.5-70 5.5 TRW-1000 10000-100000 100-2000 72-73 25 TRW-400 3000-14000 200-1800 68.5-69.5 6 TRW-450 3500-160000 200-1900 70.5-72 6 TRW-500 4000-20000 200-2000 66.5-68.5 7.5 TRW- 3300-5200 409-440 69-71 1.1 Our Services 1. Warranty: 1 Year warranty for all products. 2. Products Quality: ** products inspection before delivery. 3. Just in time delivery: Normally, lead time is 10-15 days. 4. Customized Service: As we have our own molding department, customized service can be provided. 5. Prompt Customers Service: TradeManager,Skype or E-mail will be replied in 24 hours.