Mixed Flow, Volute Casing Pump
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Catalog excerpts

Mixed Flow, Volute Casing Pump - 1

PUMPING TECHNOLOGY SPL 133.26201.53.03E 07/05 Mixed Flow, Volute Casing Pump SPL 20024...40056 TECHNICAL DATA Output: up to 3500 m3/h Delivery head: up to 33 m Speed: up to 1800 rpm depending of the pump size Medium temperature: max. 110 °C Casing pressure: max. 6 bar Shaft sealing: stuffing box or mechanical seal Flange connections: ISO DIN 2501, PN 10 Sense of rotation: clockwise, when seen from the drive on the pump APPLICATION Series SPL volute-casing pumps can be used where the requirement is for pumping clean, turbid or slightly contaminated liquids. Occasional solid contaminations can be handled without affecting the pump due to the large internal cross sections. The SPL pumps are suitable for the following applications pumping raw water in waterworks as rainwater pumps in sewage works for irrigation and drainage as seawater pumps in desalination plants as coolant pumps in power stations and steelworks for pumping low-concentration cellulose suspensions DESIGN The SPL is a horizontal, single stage, end suction pump flanged to a bearing pedestal. The volute casing has integral support feet and is fitted with a replaceable wear ring. Wearing parts can be removed from the drive end without disturbing the volute casing and pipework. An open impeller (designation A-I) is fitted as standard but a closed impeller (designation K-S) for pumping liquids containing abrasive solids can be fitted if required. CONSTRUCTION Casing pressure: between -10 ºC and +110 ºC Pump size, SPL• Maximum pump pressure [bar] (0B, 0C, 3B) Maximum pump pressure [bar] (4B) 20024, 25024 2,5 4,0 25028,30028, 40040 3,0 4,5 20028,35040, 40050 40056 3,5 5,5 25032,30032, 30036 35036 4,0 6,0 Note: Casing pressure = Inlet pressure + head at closed valve. Branch positions: Suction branch axial, discharge branch tangentially upwards. Flanges: Connection dimensions of flanges DIN 2532 PN 10. Bearings: Execution B: Pump end--ball bearing to DIN 625 or cylindrical roller bearing to DIN 5412. Drive end--ball bearing to DIN 625 or two angular contact ball bearings in an X arrangement to DIN 628. Bearings are oil lubricated. Shaft sealing: A stuffing box or a mechanical seal, as required, can affect the sealing of the shaft. Variants with stuffing box: Designation 041: Self-sealing, uncooled stuffing box Temperature range: -10 ºC to 110ºC. Designation 052: Uncooled stuffing box with external sealing and flushing liquid Temperature range: -10ºC to 110ºC. Variants with mechanical seal: The installation with mechanical seal to DIN 24960 is possible in all versions described there, as a single mechanical seal. Temperature range: -10 ºC to 110ºC Designation AA1 Unbalanced single mechanical seal, Materials: 1.4401-carbon-Viton. Designation BK3: Unbalanced single mechanical seal, Materials: Carbon-SiC- EPDM Designation BKS: Unbalanced mechanical seal Materials: SiC-SiC-Viton. Designation AF3: Balanced single mechanical seal, Materials: Carbon-SiC- EPDM Designation AFS: Balanced single mechanical seal, Materials: SiC-SiC-Viton. Double mechanical seals can be mounted on request

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Mixed Flow, Volute Casing Pump - 2

2/11 MATERIAL EXECUTION: Pos. Component Materials execution 0B 0C 3B 4B 10.20 16.10 Casing, Casing cover Cast iron Bronze Stainless steel 23.00 Impeller Cast iron Bronze Stainless steel 51.20 Wear ring Cast iron Bronze Stainless steel 21.10 Shaft Carbon steel Cr-steel Stainless steel 52.40 Shaft sleeve stuffing box Cr-steel Stainless steel Stainless steel 52.30 Shaft sleeve, mechanical seal Stainless steel 46.10 Packing Soft packing 43.30 Mechanical seal Stainless steel-carbon-Viton. / Carbon-SiC- EPDM / SiC-SiC-Viton. Casing seal: The casing is sealed by a o´ring Drive / Speed: By...

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Mixed Flow, Volute Casing Pump - 6

6/11 Connections XVI IX VII XVIIa XV Xa I II III Nº CONNECTIONS FOR EXECUTION WITH CONNECTIONS POSITION FROM MOTORSIDE I Pressure gauge connection On delivery branch II Vacuum pressure gauge connection At top of suction branch III Vent At top of volute casing VII Drain At bottom of volute casing, suction side IX Drip and leakage liquid On the bearing pedestal bottom Xa Sealing liquid connection inlet External sealing On the casing cover, top XV Oil filling Oil lubrication On the bearing pedestal top XVI Oil drain Oil lubrication On the bearing pedestal bottom, right XVIIa Oil level sight...

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Mixed Flow, Volute Casing Pump - 10

10/11 Data regarding size - order information Pump type + size Hydraulic2) + Bearing Shaft seal Material of construction Casing gasket • B: Pump side: one deep-groove ball bearing to DIN 625 or one cylindrical roller bearing to DIN 5412 Drive side: one deep-grove ball bearing to DIN 625 or two contact ball bearing in X arrangement to DIN 628 041; Self - sealing, uncooled stuffing box. 052; Uncooled stuffing box for use with external sealing liquid. Single mechanical seal to DIN 24960: AA1 BK3 Unbalanced BKS AF3 Balanced AFS 0B; Main components of cast iron. 0C; As 0B, but with bronze...

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Mixed Flow, Volute Casing Pump - 11

11/11 Sterling Fluid Systems www.sterlingfluidsystems.com SPL.Ca.GB.0.0.07.05.03

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