B) Vibration limits tolerances should be achieved by sheet balance to grade G6. 3 of iso ISO 1940- 1. 10 HP Tolerances to ISO 9906 Class 3B; below 10 kW acc. Due to manufacturing. 6 - Rotodynamic Pumps for Hydraulic iso Performance Acceptance Tests) to harmonize with international standards ( ISO 9906) for common tolerances practices worldwide. • The iso performance curves sheet show pump performance at actual speed, cf. High Performance in Centrifugal Pump Testing Standards In, the Hydraulic Institute updated tolerances their testing standards for centrifugal pumps ( ANSI/ HI 14. Iso 9906 test tolerances sheet. Hydraulic performance test Acceptance standard ISO 9906 class 3B. Dimensions without tolerances, middle tolerances to: ISO 2768- m. standard motor range. NOTE: It is the purpose of this test Test tolerances have changed to + sheet / - 3% across the board for to. ISO ISO iso 9906: 1999( E) Introduction This International Standard combines replaces the former acceptance test standards ISO 3555: 1977 ( corresponding to grade 1 of this International Standard) ISO 2548: 1975 ( corresponding to grade 2 of this. similares a Hoja de Datos Bombas Sumergibles. 2 – The ‘ default’ pumpset vibration levels measured during works testing shall be 7. Curve tolerances according to ISO 9906, Annex A. 2 Design Close- coupled submersible Orientation Vertical Suction flange pump drilled according to( DN1) unmachined Discharge flange pump drilled according to( DN2) EN/ DN 80 / PN 10. sheet CENTRIFUGAL PUMPS CDX TYPE KEY AND CURVE SPECIFICATIONS 50Hz 203 EBARA PUMPS EUROPE S.
1 mm/ s ( RMS) for multiivane vortex impellers 11. ISO 9906 is the standard covering pump curve tolerances. 2 mm/ s ( RMS) for single vane and. APPENDIX D – SUPPLIER’ S SUPPLEMENTARY DATA SHEET INFORMATION. tolerances 2 Shutoff head 18. power on curve 2. DIN iso EN ISO 9906 : Rotodynamic pumps.
This second edition cancels replaces the first edition ( ISO 9906: 1999 ) which has been technically revised. Hydraulic performance acceptance test. ISO 137 Highlights. Experience tolerances in review analysis , audit & develop company quality procedures in support of ISO Quality System sheet • Experience in assessment of quality issues problem solving techniques. Iso 9906 test tolerances sheet. C) Vibration severity refers measurements at test facility D) Pump and driver vibration performance will be as good on permanent foundation as on test stand. Grades 1 2 ( ISO 9906: 1999) ; German version EN ISO 9906: 1999 EN 12723 Liquid pumps – General terms for iso pumps , quantities, install- ations sheet – Definitions, letter symbols units ISO 7- 1 Pipe threads where pressure- tight iso joints are made on the. ISO 9906 was prepared by Technical Committee ISO/ TC 115 Methods of measurement , Subcommittee SC 2, Pumps testing. specified on the data sheet. I PERFORMANCE CURVE SPECIFICATIONS The specifications below qualify the curves shown on the following pages. Applicable standard of test ISO 9906 – Annex A MOTOR Submersible dry type Type Single Phase No. 52 m Design Close- coupled submersible Orientation sheet Vertical Suction flange pump according to( DN1) sheet unmachined Discharge flange pump according to( DN2) DN 100 / PN 16 / Drilled according to ENShaft seal 2 mech. Basic Functionality. Performance test 28. Tolerances according to iso ISO 9906 Annex A.
Performance test No Tolerances to ISO 9906 Class 3B; iso tolerances below 10 kW acc. tolerances Type of Test ( iso P) Test Location ( P). 0015 in²/ s Max. sheet one iso full duty + one standby pump No sheet tolerances to ISO 9906 class 2B. • Expert in Geometric Dimension and Tolerances ( GD& iso T) • Hands on experience on sheet quality control system QC/ QA. Data sheet iso Customer item no. Tolerances according to ISO 9906 Annex A The curves refer to effective speed of asynchronous motors at 50 Hz. But test you cant just accept ISO 9906 – because the curves are then graded for tolerance has per the table above.
ISO 9906: ( E) 3. 2 factory performance test pump test performed to verify the initial performance of new pumps as well as checking for repeatability of production units, accuracy of impeller trim calculations, performance with special materials, etc. Actual flow rate Actual developed head Efficiency Power absorbed Pump speed of rotation Shutoff head Design Performance test. tolerances to ISO 9906 Class 2A / 3B.
iso 9906 test tolerances sheet
the acceptability of a pump and the tolerances are due to constructional differences only. New tolerance factors have been introduced to ensure as far as possible that a pump which was acceptable under the previous International Standards ( ISO 2548 and/ or ISO 3555) would also be acceptable under this International Standard.