series VALVELESS SELPRIMIN MANETIC PUMP
series SEALLESS AND VALVELESS SELPRIMIN MANETIC PUMP YD250V YD251V/V YD252V/V(60Hz) YD401VV(50Hz) YD402V/V YD403V/V(60Hz) YD502V/V(50Hz) YD503V/V YD505V/V Highspeed selfpriming power This pump is designed to prevent suction of excess air to maintain optimum priming. While compact in design, it has the highspeed selfpriming capacity, priming 5m. less than 2 minutes. Prevents dry running, resistant to dry running 1 2 Unique valveless mechanism (Internationally patented) Heat resistant bearing (Internationally patented) 3 5 2 SUCTION LIT5m 2minute When pumps run dry, the friction at the contact points causes the shaft and bearing to break down from excess heat. World Chemicals patented heat resistant materials and construction prevents extreme temperature changes at the contact point. lock/cavitations free construction Pockets are created when air enters the chamber during priming. The unique internal design of the rear casing and impeller directs and releases the air without affecting the performance of the pump and prolongs pump life. The most compact design in its class, ideal for limited space installations. Models with 2HP and above use neodymium magnet, and show high performance in this compact, V/V series. They are ideal for high specific gravity liquids.
5m less than 2 minutes; the powerful selfpriming performance changes the way of production line setup Applications or transferring liquid from the top of the tank and for antiearthquake and antileakage measures against unexpected pipe broken. or pumping liquid to higher grounds or from underground pits Astounding selfpriming power enables pumping from a deep pit or to higher ground 25m. Regardless of bore diameters, the pump can maintain its high selfpriming performance. Capable of running with long horizontal suction piping and upanddown piping The pump can handle a wide range of installation sites: 10m horizontal piping, upanddown piping, as well as other demanding conditions. or transferring foamy liquid The valve less selfpriming pump equipped with antidryrunning measures is capable of handling hydrogen peroxide, sodium hypochlorite, sodium carbonate and any other foamy liquid that produces gas in the pump and pipes. or transferring high specific gravity liquid No impeller trimming required. No need for changing models. With the new V, an increase in motor horsepower and the magnet torque alone will provide the selfpriming power to lift high specific gravity liquids. The evolution of the worldleading valveless selfpriming pump The world s first valveless pump was developed in 1971 by World Chemical from the unique idea of eliminating check valves, a common cause of pump failures, from the conventional pump design. 1971 SV:Valveless selfpriming pump Mechanical seal PVC (polyvinyl chloride) 1994 V:Valveless selfpriming magnetic pump PP (polypropylene) V:Valveless selfpriming magnetic pump PP (polypropylene) Molded pump 00 V:Valveless selfpriming magnetic pump ETE (EthyleneTetrafluorothylene) Molded pump 02
The twopoint support construction of the shaft for durability The airreleasing construction of the rear casing prevents trapped air Three kinds of bearing for a wide range of chemicals Durability is enhanced by the twopoint stationary shaft. SiC shafts, resistant to frictional wear, is also available. The original airreleasing construction of the rear casing prevents air retention and airlock situations. Carbon fiber adopted for the reinforcement of the rear casing strengthens the pump against burst pressure. Bearing can be selected by chemical type and presence of slurry. Bearing is available in carbon, ceramic, and SiC. A Shaft B Rear Casing C Bearing Priming Plug 5m of suction lift in 2 min. B A C D Drain Plug E Loose lange Loose flange for easy installation E Motor (with terminal box) Sturdy outdoortype motors for standard use *NEMA and IEC brackets are also available D Impeller & Magnet Neodymium magnet for a compact design (2HP or above) The loose flange allows flexibility in installation and easy connection to any pipe flange. Made of reinforced plastic, the terminal box does not compromise its durability even in demanding conditions with a chemical atmosphere. The terminal box is positioned at the top of the motor for convenience in wiring. The oil seal prevents corrosion caused by fume and liquid leakage, and extends motor life. Powerful Neodymium magnet allows a compact design with excellent performance. The casting of the impeller and the magnet improves the handling of reverse rotation and hightemperature situations. The unique, unrivalled configuration of the impeller increases efficiency in performance. 18
V/V series V A LV E L E S S S E L P R I M I N M A N E T I C P U M P YD250V YD251V/V YD252V/V YD401V/V YD402V/V YD403V/V YD502V/V YD503V/V YD505V/V Outer Magnet Motor Rear Casing Casing Mouth Ring Bearing Rear Thrust Ring Priming Water Plug Rear Casing Support Base Drain Plug Shaft Oring Liner ring Impeller Part Name Material Material Part Name V V V V Casing R PP CR ETE Shaft Alumina Ceramics / SiC Priming Water Plug R PP CR ETE Rear Thrust ring Alumina Ceramics / SiC Drain Plug R PP CR ETE Rear Casing R PP CR ETE Liner ring Alumina Ceramics + R PPS Alumina Ceramics + CR ETE Rear Casing Support C0 Mouth Ring CR PTE Outer Magnet CD45010 + Magnet Impeller (R) PP + Magnet CR ETE + Magnet Motor C0 + Aluminum rame Motor Bearing Carbon / Ceramic / SiC Base Oring Internationally Patented Valveless Mechanism Liquid R PP / C0 EPDM / PM 5 1 2 3 Before Start 4 During Selfpriming During Operation Stop 1 (Backflow) Stop 2 Siphon break (Water remains) When the pump is shut down, the unique siphon break intercepts backflow by quickly releasing air so that priming water remains in the auxiliary tank. 19
j YD 402 V CE 5 Discharge Bore Motor Output Main Material requency Specific ravity (S..) 0 : 0.4kW 3 : 2.2kW 1 : 0.75kW 5 : 3.7kW 2 : kw V : P PP V : CR ETE 5 : 50Hz 6 : 60Hz Bearing/Oring Material None: or S..= (S..=1.05 for 250V) : or high S.. or for higher HP :or S..= for V (S..=1.2 for 505V) Type Parts Bearing Oring CE CD AE AD TT Carbon Carbon Alumina ceramics Alumina ceramics Special Material EPDM PM EPDM PM Special Material Outline Drawing W f d H e a b g L c o 4i MODEL YD250V YD251V() YD252V() YD401V() YD402V() YD403V() YD502V() YD503V() YD505V() W 533 196 325 562 255 70 167 275 228 360 592 130 160 130 276 84 190 305 622 225 643 8 0 1436 235 248 389 260 296 93 6 309 684 230 261 3614 245 ø12 0 7 215 217 Unit:mm H L a b c d e f g i j o 18 18
Performance Specification V series Model YD250V YD251V YD252V YD401V YD402V YD403V YD502V YD503V YD505V Suction Bore Discharge Bore mm 25A 40A 50A mm 25A 40A 50A Standard Specified Point 880 11160 170 18250 V/V series V A LV E L E S S S E L P R I M I N M A N E T I C P U M P S..Limit 1.05 2.0 1.8 1.4 1.8 YD250V YD251V/V YD252V/V Standard Performancemrmin S..Indicator Standard Specified Point 880 12110 170 18250 18250 280 S..Limit 1.05 1.8 2.0 1.4 1.6 1.2 YD401V/V YD402V/V YD403V/V S..Indicator YD502V/V YD503V/V YD505V/V Motor Output 0.4 0.75 0.75 2.2 2.2 3.7 Weight kg 18.5.5 24.5 22.5 26.5 29 29.5 32 53 V series Model YD251V Suction Bore 25A Discharge Bore 25A Standard Specified Point 880 S..Limit 2.0 Standard Performancemr/min S..Indicator Standard Specified Point 880 12100 S..Limit 1.6 S..Indicator Motor Output 0.75 Weight kg 23 YD252V 12105 1.8 27 YD401V 10110 0.75 25 YD402V 40A 40A 11160 1.6 150 29 YD403V 160 1.3 2.2 3 YD502V 150 32.5 YD503V 50A 50A 170 17250 1.4 17250 2.2 35 YD505V 18250 1.8 18250 23300 1.6 3.7 56 Liquid Temperatures and SelfPriming Performance Data Test Model: 401VCD5 Test Liquid: Water Liquid Temperatures Depth 2m Depth 4m Depth 5m Suction Discharge Suction Discharge Suction Discharge 40 C 29 sec. 58 sec. 1 min. 03 sec. 1 min. 31 sec. 1 min. 39 sec. 2 min. 13 sec. 45 C 36 sec. 1 min. 09 sec. 1 min. 16 sec. 1 min. 47 sec. Note: The discharge time is 1 min. 48 sec. for water at C at a depth of 5m. 50 C 35 sec. 1 min. 10 sec. 1 min. sec. 1 min. 52 sec. 55 C 44 sec. 1 min. 16 sec. 1 min. 30 sec. 2 min. 07 sec. Our Test Data 60 C 49 sec. 1 min. 23 sec. 1 min. 50 sec. 2 min. sec. Suction: elapsed time until liquid enters the pump. Discharge: elapsed time until stable discharge of liquid. 5m 2m Discharge 21
Performance Curves V series 50Hz 30 25 V/V series V A LV E L E S S S E L P R I M I N M A N E T I C P U M P YD250V YD251V/V YD252V/V YD401V/V YD402V/V YD403V/V YD502V/V YD503V/V YD505V/V Total Head (m) 15 10 5 250V 251V 401V 402V 505V 503V 503V 502V 0 1000300400500 Discharge (r/min) 35 60Hz 30 25 Total Head (m) 15 252V 251V 402V 505V V series 10 5 0 403V 505V 250V 503V 251V 1000300400500 Discharge (r/min) 50Hz 30 25 Total Head (m) 15 10 505V 5 251V 502V 401V 402V 503V 503V 0 1000300400500 Discharge (r/min) 60Hz 35 30 25 The performance data is based on clean water at C with flooded suction. Magnetic drive pumps must not be operated with discharge valve closed continuously. Minimum flow rate is necessary as below: 250/251/401 type 10R/min 252/402/403/502/503/505 type R/min Total Head (m) 15 10 5 0 251V 252V 251V 402V 505V 505V 403V 503V 1000300400500 Discharge (r/min) 22
CAUTIONS WHEN INSTALLIN AND LAYIN PIPES YDV / V series 1Caution when installing If air enters the pump from couplings on the suction pipe, the pump will be unable to pump the liquid and cause a failure. There is negative pressure in the suction pipe during operation. Improper installation of the coupling lets air into the pump while preventing liquid from entering the pump. This can result in pump failure. Use a suction pipe with the same diameter as the suction inlet. When the piping is larger than the pump diameter, selfsuction ability is decreased and selfpriming impossible. Keep the minimum liquid level at a depth of more than double the suction pipe bore diameter from the tip of the suction pipe. If the liquid level is lower, air can enter the pump and cause dry running. Place a strainer at the inlet of the piping to prevent foreign matter from entering the suction pipe. Clean the strainer periodically to prevent clogging and minimize loss resistance. It is recommended that a check valve be attached to the vertical pipe on the discharge side to prevent water hammer. Place a bypass for air exhaust on the lower section of the check valve when: Problems in selfpriming can be expected if an air vent pipe is not installed. The discharge pipe is long or when the discharge head is more than 10 m. The end of the discharge pipe is located higher than 9 m above the liquid level of the suction tank. Two or more pumps are used in parallel. Increased liquid temperature causes the piping to expand, leading to pump deformation. Install bent pipes and expansion joints on the pipes to prevent liquid leakage. 2Do not tighten the pump flange excessively. Arrange the pipe flange surface and the pump flange surface parallel to one another and do not tighten the bolts excessively. The imposed dimension between the pump and the piping should be fitted. If not, pump casing could be damaged. Meanwhile, uneven clamping could cause the liquid leaks from the packing. Tighten the bolts diagonally and evenly. 3Do not apply weight on the pipes. The weight of the pipe should be completely supported by the pipe support. Priming water; vent ate valve Suction pipe Check valve Vacuum gauge Expansion joint Discharge pipe ate valve Pipe support Pressure gauge If the liquid temperature is higher than 40 C, install bent pipes and expansion joints on the pipes so that the pump is not loaded with weight from pipe thermal expansion. Avoid using metal pipes. Use resin pipes only. ollow instructions in 2) and 3) particularly in applications that use sulfuric acid and caustic acid. Pipe support Tank Drainage ditch 23
Tsukuba actory Comprehensive Manufacturer of Environmental Equipment Challenging the Liquid Transfer Technology, World Chemical Co., Ltd Head Office 3rd loor, ANTEX 24, 1114 Taito, Taitoku, Tokyo, 1100016 Japan Head Office 1 +81358185130 5 +81358185131 Email chemical@wcc.co.jp Overseas Department 1 +81358185134 5 +81358185131 Email overseas@wcc.co.jp Nagoya Office Osaka Office ukuoka Office Tsukuba actory 61275 Onogo, Jososhi, Ibaraki, 3002521 Japan 1 +81297241071 5 +81297241075 Worchemi Taiwan Co., Ltd. No. 13, Lane 513, ShernLin South Rd., Taya Hsiang, Taichung Hsien, Taiwan R. O. C. 1 +886425609315 5 +886425609056 URL http://www.worldchemical.com.tw/ Email worchemi@ms34.hinet.net World Chemical USA, Inc. 30 Hughes, Suite 3, Irvine, CA 92618 U.S.A. 1 +194946900 5 +19494699 URL http://www.worldchemicalusa.com/main.php Email wca@worldchemicaluse.com Suzhou World Technology Co., Ltd. 402, u Yuan Road, Xiang Cheng, Economic District, Su Zhou, China 1 +8651265798212 5 +8651265798125 URL http://www.worldchemical.com.cn/ Email worldchemical@wcs.szbnet.com Distributed by: 11031000