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50DX(A)/50DX(B) Features: This pump adopts inner air cooling design, enables heat dispersion performance of the motor to be more superior, thereby extends service life of motor. The motor is equipped with thermal protector inside, which ensures motor not to be damaged. Use manual press type pneumatic plant to coutrol pump switch, which effectively prevents electric leakage caused by water entering switch or high humidity of air, it has strong safety performance. Pump body adopts acid and alkali proof, corrosion proof material, water utilization is more sanitary. Motor shaft is isolated from liquid thoroughly, which prevents rust from influencing seal performance, the greatest merit is that water is absolutely free of electricity even the motor leaks electricity, thereby it ensures safer operation. Main use: This pump is especially suitable for surf massage in shower house and surf auxiliary of footbath massage chair, since flow of this pump is extraordinarily large, it is also suitable for water supply of pool, irrigation of farmland, delivery of beverage, chemialc engineering and petroleum pipe line auxiliaries. Performance Curves: Technical Data: Model Power (w) Voltage (v) Frequ-ency (Hz) Speed (r/min) Input & Outlet  Dia. Hig- hest Head (m) Rated Head (m) Max. Cap- acity(m3/h) Rated Capa- city(m3/h) G.W. (kg) Q'ty (pcs) Package Dimension (cm) L W H 50DX-10 0.55 220~240 50 2860 50 8 5 8 5 20 4 35.5 28 39 50DX-10 0.55 110~120 60 3360 50 11 5 10 6 20 4 35.5 28 39 50DX-15 0.75 220~240 50 2860 50 10 5 12 8 22 4 36.5 28 39 50DX-15 0.75 110~120 60 3360 50 13 5 15 10 22 4 36.5 28 39 Installation Dimensions: Structure Chart: N. Description N. Description N. Description 1 End-shield 7 Mechanical seal 13 Front-shield 2 Ball bearing 8 Mpeller 14 Tie-rod 3 Terminal box 9 Outlet 15 Pump casing 4 Rotor 10 Tie-rod 16 Inlet 5 Ball bearing 11 Fan     5 Adaptor 12 Motor housing