IN series. Centrifugal pumps standardized to DIN-24255

Transcription

1 IN series Centrifugal pumps standardized to DIN-24255

2 DESCRIPTION The new standardized IN series are single-stage horizontal centrifugal pumps, with axial suction and radial discharge, buit to Standard DIN-24255, and evolved as a result of the latest hydraulic and technological innovations applied to the design and manufacture of the well-proven and wellknown Norma Series of ITUR Pumps. Evolved in order to cover a wide variety of pumping requirements, they offer solutions and improvements with: - High efficiency, - Sturdy design - Variety of materials, according to the liquid being pumped. - Sealed by mecanical seal or packing. - Amply-dimensioned bearings. - Standardized parts with high degree of intechangeability - Minimal and rapid maintenance. EASE OF MAINTENANCE The standard version of the electro-pump unit embodies the normal semi-flexible coupling. Upon request, this coupling can be supplied with a spacer. The use of the semi-flexible coupling with a spacer allows easy access to the pump interior without the need to remove the pipes or the motor. After removing the spacer, the assembly made up of the support, cover and impeller is removed, the pump casing and the motor always remaining attached to the bed-plate. The suction and discharges pipes remain connected. In this way the maintenance tasks are made easier, especially when dealing with a fixed installation with several pumps. Although these pumps are normally driven by an electric motor, other power-drive sources may be used (diesel motor, steam turbine, hydraulic motor,...). APPLICATIONS The IN-Series of ITUR Pumps has been specially conceived for the pumping of liquids, generally clean or lightly contaminated. The field of application of the series extends to all the pumping needs for the requirements of medium-duty services: O Municipal or industrial water supply O Water and oil channelling systems O Supply of hot water to large buildings O Climatization installations O Constant-pressure water equipment O Fire-protection equipment O Irrigation PUMP DENOMINATION IN Series DN of discharge outlet, in mm Nominal diameter of impeller, in mm Impeller type IN-100/250 B RANGE OF THE SERIES The IN-Series, standardized to DIN comprises a total of 47 different models, based on 34 pump sizes, where each size allows for one or two types of impeller (A or B). Service limits - Maximum flow: m3/h - Maximum height differential m.c.a. - Maximum casing pressure (at 20 C) kg/cm2. - Maximum suction pressure Kg/ cm2. - Maximum speed rpm - Maximum temperature C - Maximum viscosity cst (2,9 E) Note.- With consultation, some of the standard construction limits laid down can be exceeded. There are 13 larger models for flows of up to 1600 m3/h. (See catalogue for IN Series - complementary sizes). CONSTRUCTION Pump Casing With volute casing and support feet, it embodies the flanges for the suction (axial) and discharge (radial upwards), and incorporates a wear ring. The casing-to-cover sealing is effected by means of an embedded gasket. Suction and discharge flanges Integrally cast with the casing constructed to DIN-2501 crackle-finished RF to DIN-2526 form C. Valid for connecting to commercial flanges DIN PN10. 2

3 Auxiliary connections The standard version comes with two connections: one for vent/primming or pressure gauge and other for drain purposes, both drilled and closed off with the corresponding covers. Pump cover Cast in one piece, of integral design, with the seal or the packing. It incorporates the rear wear ring. It allows for connections for the seal circulation by the liquid being pumped: plans API-01 (internal). Standard sealing systems By means of mechanical seal or packing. The standard version embodies the API-01 plan of internal circulation. Simple mechanical DIN seal Standardized to DIN The material used in the contacting faces and in the joints depends upon the liquid to be pumped. Wear rings All models incorporate a forward wear ring in the casing and a rear wear ring in the cover, in order to avoid expensive repairs and to reduce their costs, through the natural loss of adjustment produced through time with the impeller. Impeller High efficiency closed impeller, cast in one piece, hydraulically and dynamically balanced. Hydraulically relieved by means of the axial thrust compensation drill holes, it is keyed to the shaft and locked by means of two nuts. Pump shaft Well-dimensioned, the shaft is especially resistant to bending. It is provided with a replaceable sleeve, sealed with the shaft itself by means of a O ring. Thus, changing the shaft can be avoided, in the case of wear or abrasion in the sealing or packing area, in this way achieving quick and cheap maintenance. Detail of the mechanical seal with plan API-01 (internal) Packing Asbestos-free, provided with the corresponding lantern. Bearing support Of modern design, it incorporates two ball bearings, situated at both ends of the support. Some pump sizes carry a double raw ball bearing on the pump side. It has a protective deflector against the ingress of liquid. The bearings have been calculated to give a minimum lifespan of hours, although most model exceed hours. They are grease-lubricated, the support incorporating greasers in its upper part. Packing detail with plan API-01 (internal). 3

4 STANDARDIZED MATERIALS The IN Series of ITUR Pumps has been studied in 6 different versions of the highest quality Standardized Materials. The aim of standardizing the materials is to seek Standardized solutions for the entire range of pumps in medium-duty service, in order to provide a fast, flexible Service for the normal demand for this type of pumps. Nevertheless, if the type of service for which the pumps are destined requires it, upon request they can be manufactured in other classes of materials. In such a case, consult the ITUR Pumps Engineering Department, who will study and offer the most favourable solution in each particular case. STANDARDIZED VERSION 500-GG MIXTA 502-MISTINOX 503-BRONCE 521-IMPBRON 522-EJENOX Ref. Title of part Material Nr. DIN Material Nr. DIN Material Nr. DIN Material Nr. DIN Material Nr. DIN Material Nr. DIN 102 Pump Casing GG GG GG RG GG GG Pump Cover GG GG GG RG GG GG Pump shaft F-114 (1) (1) AISI AISI AISI F-114 (1) (1) AISI Impeller GG G-CuSn AISI-316 (2) G-CuSn G-CuSn GG Bearing support GG GG GG GG GG GG Stuffing box (P) GG GG GG RG GG GG Casing wear ring GG RG GG RG RG GG Cover wear ring GG RG GG RG RG GG Shaft sleeve (S) AISI AISI AISI AISI AISI AISI Shaft sleeve (P) AISI-431 B AISI-431 B AISI-431 B AISI-431 B AISI-431 B AISI-431 B Impeller nut F AISI AISI AISI AISI AISI Impeller key AISI AISI AISI AISI AISI AISI Driving key F F F F F F (P) = Version with packing (S)= Version with mechanical seal (1) = The shaft is made of F-127 BO (1.6565) for 80/135 sizes at more than 1800 rpm, and 100/315 at more than 1500 rpm, up to 2200 rpm. (2) = CF8M. Terminology for cast-in parts. TECHNICAL DATA The Table below shows the seal diameters, and the size and number of packing rings corresponding to the IN Series of pumps, in the sizes standardized to DIN The data is cross-referenced to the interchangeability Table on the following page, for pumps constructed of standardized materials and standard parts. Example: Pump IN-65/125B has a seal diameter (Group B on the Interchangeability Table) of 28 mm, or in the case of packing (Group A on the Interchangeability Table) incorporates 4 packing rings with each square-sectioned of 8 mm. Technical Data Simple mechanical seal diameter Size of the packing square-sectioned Packing rings number Measure unit Group of the interchangeability Table A B C D mm mm un The following Table shows the maximum rotational speed for each size pump. These values have been calculated for normal, continuous, pump operation, pumping clean water at 20 C, with a specific weight of 1 Kg/dm3. For special cases, such as emergency pumps or others, with consultation these limits can be exceeded. PUMP SIZES 32/125 32/160 32/200 40/125 40/160 40/200 50/125 50/160 80/200 65/125 32/250 40/250 50/200 50/250 65/160 65/200 65/250 80/160 80/ / / /200 40/315 50/315 65/315 80/ / / / / / / / /400 Maximun R.P.M

5 PARTS INTERCHANGEABILITY The standardization of parts and materials of the IN-Series makes possible a high number of common and interchangeable parts between the different pump models. This standardization infers an operational saving in costs, since it minimises the stock of parts required to guarantee the efficient maintenance of many different models of pumps. The components listed in the upper part of the table are standard and interchangeable between the different types of pumps, provided that the same letter and colour are shown in the cross-reference box. EXAMPLE The pump shaft of model IN-32/125A is identical and interchangeable, at the same material, with that of models:» IN-32/125B» IN-40/125B» IN-32/160A» IN-32/160B Since in the column pump shaft the letter A appears in all of them. TYPE OF PUMP IN- Bearing support 330 Ball bearings y 2 Title of part and reference number in the pump explosed view Protective deflector 507 Impeller nut 922 Impeller key Shaft sleeve 523 y 524 Pump shaft 210 Simple mechanical seal version Mcch. scal 433 NOTE.- ITUR Pumps practices a policy of continual development of its models. For this reason specifications are subject to change without notice. Spacer 504 Pump cover 161 Facking 461 Packing version Lantern 458 Stutfing-box 452 Pump cover /125A A A A A A A A A A CM-1 A A A E-1 32/125B A A A A A A A A A CM-1 A A A E-1 40/125B A A A A A A A A A CM-1 A A A E-1 32/160A A A A A A A A A A CM-2 A A A E-2 32/160B A A A A A A A A A CM-2 A A A E-2 50/125B A A A B B B B B B CM-3 A B B E-3 65/125B A A A B B B B B B CM-3 A B B E-3 40/160A A A A B B B B B B CM-4 A B B E-4 40/160B A A A B B B B B B CM-4 A B B E-4 50/160A A A A B B B B B B CM-4 A B B E-4 50/160B A A A B B B B B B CM-4 A B B E-4 65/160B A A A B B B B B B CM-5 A B B E-5 80/160B A A A B B B B B B CM-5 A B B E-5 32/200A A A A B B B B B B CM-6 A B B E-6 32/200B A A A B B B B B B CM-6 A B B E-6 40/200A A A A B B B B B B CM-6 A B B E-6 40/200B A A A B B B B B B CM-6 A B B E-6 50/200A A A A B B B B B B CM-7 A B B E-7 50/200B A A A B B B B B B CM-7 A B B E-7 65/200A A A A B B B B B B CM-7 A B B E-7 65/200B A A A B B B B B B CM-7 A B B E-7 32/250B A A A B B B B B B CM-8 A B B E-8 40/250A A A A B B B B B B CM-9 A B B E-9 40/250B A A A B B B B B B CM-9 A B B E-9 50/250A A A A B B B B B B CM-9 A B B E-9 50/250B A A A B B B B B B CM-9 A B B E-9 80/200B B B B C C C C C C CM-10 B C C E /200A B B B C C C C C C CM-10 B C C E /200B B B B C C C C C C CM-10 B C C E-10 65/250B B B B C C C C C C CM-11 B C C E-11 80/250A B B B C C C C C C CM-11 B C C E-11 80/250B B B B C C C C C C CM-11 B C C E /250B B B B C C C C C C CM-12 B C C E /250A B B B C C C C C C CM-12 B C C E /250B B B B C C C C C C CM-12 B C C E /200B B B B C C C D C C CM-13 B C C E /250B B B B C C C D C C CM-14 B C C E-14 40/315B B B B C C C D C C CM-15 B C C E-15 50/315B B B B C C C D C C CM-15 B C C E-15 65/315B B B B C C C D C C CM-16 B C C E-16 80/315B B B B C C C D C C CM-17 B C C E /315B B B B C C C D C C CM-17 B C C E /315B C D D D D D E D C CM-18 B D D E /315B C D D D D D E D C CM-18 B D D E /400B C D D D D D E D C CM-19 B D D E /400B C D D D D D E D C CM-20 B D D E /400B C D D D D D E D C CM-20 B D D E-20 5

6 PUMP SELECTION DIAGRAMS These diagrams make possible a rapid selection of the most suitable type of pump. These are occasions in which, once a pump has been selected, it will also be possible to find another which may satisfy the task conditions with greater efficiency or less NPSH required. In such cases, the final selection will be made, based on the particular curves for each pump. Range coverage Complementary sizes 6

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8 CROSS-SECTIONAL DIAGRAM OF PUMP Cross-sectional diagram of IN pump with mechanical seal. Ref. Component title 102 Pump Casing 161 Pump cover 183 Supporting foot 210 Pump shaft 230 Impeller Rear bearing Front bearing 330 Bearing cap 400.* Flat gaskets 411 Washers 412 O ring 422 Felt ring 433 Mechanical seal 452 Stuffing box 458 Packing lantern 461 Packing Casing wear ring Cover wear ring 504 Spacer sleeve 507 Deflector protector 523 Shaft sleeve (mechanical seal) 524 Shaft sleeve (packing) 636 Grease gun 901 Hexagonal screw 902.* Studs Pressure gauge/primming/vent plug Pump emptying plug 914 Allen screw 920.* Nuts 922 Impeller nut Impeller key Driving key (*= 1, 2, 3,...) Cross sectional diagram of IN pump with packing. 8

9 FREE SHAFT PUMP DIMENSIONS Pump size Flanges Pump dimensions Dimensions in mm Foot dimensions Sup. Shaft end IN- DNd DNs a f h 1 h 2 b m 1 m 2 n 1 n 2 n 3 s 1 s 2 w y d l t u 32/ / / ,9 8 32/ / / ,9 8 40/ / / , / / / ,9 8 50/ / , / / / ,9 8 65/ / , / , / / , / / / / , / , / , / , / / , / / / , NOTE.- ITUR Pumps practices a policy of continual development of its models. For this reason specifications are subject to change without notice. Weigh in Kg

10 MOTOR SIZE AND POWER AT 50 Hz, IP-55, STANDARDIZED TO I.E.C. Motor power in KW 0,55 Motor power in HP M. size at rpm M. size at rpm 0,75 80M 71M 0, M 80M 1,1 1,5 90S 80M 1,5 2 90L 90S 2, L 90L ,5 100L 112M 100L 112M 132S 132S 132M 132S M 160L 160M 160M 180M 180L 200L 225S 160L 180M 200L 200L M 250M 225M 250M NOTE.- ITUR Pumps practices a policy of continual development of its models. For this reason specifications are subject to change without notice. 5,5 7,5 7, , S 280M 315S 280S 280M 315S M 315M 315M 315M 10

11 ELECTROPUMP DIMENSIONS WITH BEDPLATE STANDARDIZED TO ITUR Pump size Flanges Asesmbly dimensions Dimensions in mm Head -h 3 - and standardized bedplate type, in terms of motor size (I.E.C.) IN- DNd DNs a f h 1 h 2 L 5 x 80M 90S 90L 100L 112M 132S 132M 160M 160L 180M 180L 200L 225S 225M 250M 280S 280M 315S 315M 32/ Bedplate nr /3 270/5 32/ / / / / Bedplate nr /5 300/ / / / / / / / Bedplate nr / /4 530/1 40/ / / Bedplate nr / /4 40/ / / (*) 80/ (*) 100/ (*) Bedplate nr /6 430/2 530/1 530/2 [120 60/ / (*) (*) (*) 80/ / (*) (*) (*) (*) 100/ / Bedplate nr /3 430/4 430/2 530/1 530/2 [120 [ / (*) 125/ / (*) (*) Bedplate nr /1 530/2 [ / / / (*) 150/ (*) (*) (*) (*) Bedplate nr /3 580/1 [120 [160 NOTE.- ITUR Pumps practices a policy of continual development of its models. For this reason specifications are subject to change without notice. BEDPLATE DIMENSIONS STANDARDIZED TO ITUR Bedplate Number Dimensions in mm b 1 b 2 L 1 L 2 L 3 S T / Ø / Ø / Ø Ø / Ø Ø / Ø / Ø / Ø / Ø / Ø / Ø Ø / Ø / Ø 30 11

12 BOMBAS ITUR, S.A. P. O. Box ZARAUTZ (Gipuzkoa) SPAIN Tel.: Fax: E.Mail: CI-IN / A329-7 (09/02)