WE HAVE ALL THE TICKS - Rapid Allweiler

1 NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255) FOR HEAT TRANSFER OILS UP TO 350 CWE have ALL THE TICKSV ersion 1 - NTT: Rapid Allweiler PumpsWhilst all care has been taken to ensure the accuracy of the information contained in this brochure was correct at the time of printing, please be advised we cannot be held responsible for any errors contained within and or changes that may have taken place. Dimensions contained within are for reference purpose only and should not be used for construction; certified drawings are available upon request. For confirmation of any information contained herewith please contact a member of our technical sales team. NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255)1 DESIGN & CONSTRUCTION Thermal oil pumps capable of handling temperatures up to 350 C in heat transfer plants without the necessity for external cooling of the pump.

2 The fluids pumped must have lubricating properties and should not contain any solids or abrasive particles, as the non drive end bearing and mechanical seal is lubricated by the pumped liquid. The unique heat dissipation design of the bearing housing ensures a reduced temperature at the mechanical seal faces and the bearings. See page 2. Back pull out for ease of maintenance. These pumps are further equipped with a safety stuffing box and throttling area in front of the mechanical seal. In case of a seal failure this prevents the pumped liquid from emerging in a hazardous quantity or manner. With drain connection adequate piped up, the safety requirements of DIN 4754 are exceeded.

3 (The pumps have a drain connection to ensure that any seepage past the shaft sealing can be safely drained through this connection). High temperature bearings are fitted where applicable. Flanges Pump flanges according to PN 16 EN 1092-1 (BS 4504) .Motors No special motor or coupling guard required due to unique heat dissipation design. MATERIALS OF CONSTRUCTIONV olute Casing: Iron Grade 42 (Ductile Iron)Casing Cover: Iron Grade 42 (Ductile Iron)Matching Ring: Iron Grade 42 (Ductile Iron)Impeller: GG20 Cast ironBearing Housing: GG20 Cast ironShaft: Grade 431 Stainless steelMODEL DESCRIPTIONNTT 50 250 Viton Sealing Arrangement Nominal Impeller Diameter in mm Discharge Size in mm Pump typeRA Pump RangeMinimum Flow (m3/h) Maximum Flow (m3/h)Minimum Head (m)Maximum Head (m)Maximum Temperature NTT / NIT3530397350 CAPPLICATION Chemical and Pharmaceutical Industry Mineral Oil Food, Laundries and Textile Leather and Paper Wood Manufacturing Paint and Lacquer Building, Tar and Bitumen Electrical Engineering IndustriesNTTNIT (In-line option)NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255)

4 INTERCHANGEABILITY DIAGRAMThe modular design system ensuresmaximum interchangeability of parts using only two different size bearing Working PressureThe maximum total working pressure at various temperatures is indicated in the graph below. 200180160140120100806040200 Temperature in C2 Heat Dissapationwithadaptorring250360470 NTT2532405065806580100125 NTTB earing BracketShaft unitCasing CoverVolute - Nominal Impeller DiameterDelivery FlangeIDBearingBracketSize250200160 NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255)3 SECTIONAL DRAWINGPARTS ELPPINHEXAGONAL DEWERCSSOCKET HEAD CAP EMAN .ON TFAHS032 RELLEPMIGROOVED BALL HOUSING TRAPNOITPIRCSEDA FillingB Dr ainingD Seepage DrainE VentingCONNECTIONSD esign with intermediate ring sizes 40-250 and 50-250 NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255)DIMENSIONSF langes acc.

5 ToDIN 2533 DNsDbfkgDNdHoles251151685144321401810018 4401501811018450165201251846518520145184 802002216018810022024180188125 2502621018815028526240228 DNs DNdafb1b2h1h2bcc1em1m2m3n1n2wsxdltuFDFFL OV25-20040258036013213216018050154281007 045240190260M12802450278G1/4G1/4G1/4G1/4 32-1605032803601231231321605015428100704 5240190260M12802450278G1/4G1/4G1/4G1/440 -160503280360123123132160501542810070452 40190260M12802450278G1/4G1/4G1/4G1/440-2 0065401003601251351601805015428100704526 5212260M12802450278G1/4G1/4G1/4G1/440-25 0654010036015015618022565154281259545320 250260M12802450278G1/4G1/4G1/4G1/436050- 1606550100360125130160180501542810070452 65212260M12802450278G1/4G1/4G1/4G1/450-2 0065501003601331451602005015428100704526 5212260M12802450278G1/4G1/4G1/4G1/450-25 0655010036015616918022565154281259545320 250260M12802450278G1/4G1/4G1/4G1/465-160 8065100360133162160200651542812595452802 12260M12802450278G1/4G1/4G1/4G1/465-2008 0651003601481701802256515428125954532025 0260M121002450278G1/4G1/4G1/4G1/480-1601 0080125360136170180225651542812595453202 50260M121002450278G1/4G1/4G1/4G1/465-250 8065100470164184200250801842816012045360 280340 M1610032803510G3/8G1/4G1/4G1/480-2001008 0125470163188180250651842812595453452803 40 M1210032803510G3/8G1/4G1/4G1/480-2508065 1004701641842002508018428160120453602803 40 M1610032803510G3/8G1/4G1/4G1/4470100-200 1008012547016318818025065184281259545345 280340 M1210032803510G3/8G1/4G1/4G1/4100-250100 8012547018220820028080184281601204540031 5340 M1610032803510G3/8G1/4G1/4G1/4125-250125 1001254701652032002808018428160120453602 80340 M1612032803510G3/8G1/4G1/4G1/4 BearingBracketsizePumpSizePump dimensionsteeFsegnalFBackPull-outDistanc eShaft end DIN 748Dr ainingFillingLeakag eoutVentingConnections45 NTTCENTRIFUGAL PUMPS TO EN733 (DIN 24255)TOMBSTONE CURVES23468 102030406080 10020030040023468102030406025-20032-1603 2-20040-20040-16065-16080-16050-160100-2 0080-20065-20050-200100-25080-25065-2504 0-25050-250125-25065-31580-315100-315102 030401007023468 10206010020030040070025-20032-16032-2004 0-20040-16065-16080-16050-160125-250100- 20080-20065-20050-200100-25080-25065-250 40-25050-250 FLOW RATE [m3/h][m]HEAD[m]HEADFLOW RATE [m3/h]1450 rpm2900 rpm Pg.

6 No. 25-200 3 4332-160 5 4532-200 6 4640-160 8 4840-200 9 4940-250 10 5050-160 12 5250-200 13 5350-250 14 5465-160 16 5665-200 17 5765-250 18 5865-315 19 80-160 21 5980-200 22 6080-250 23 6180-315 24 100-200 26 62100-250 27 63100-315 28125-250 30 64 Size** FOR INDIVIDUAL PUMP PERFORMANCE CURVES, REFER TO OUR 24255 (DIN EN 733) CURVES RAPID10 Girder Street Isando 1601T: +27 11 573 7400 F: +27 11 974