ASME B73 Pump Standards Presenters: Ken Burkhardt Principal Mechanical Engineering Consultant, DuPont Dan Wood Principal Mechanical Engineering Consultant, Chemours Presenters Ken Burkhardt, PE Dan Wood Chair, ASME B73 Member, ASME B73 Principal Mechanical Engineering Consultant, DuPont (35 years) Principal Mechanical Engineering Consultant, Chemours (12 years) Pumps, seals and pumping systems corporate consultant: Pump and seal application, system design, diagnosis of pump and system problems, pump and seal technical steward, rotating machinery standards technical steward Pumps, seals and pumping system corporate consultant BS Mechanical Engineering, Virginia Tech 27 years Chemical Industry experience in both pump manufacturer and end user technology roles BS Mechanical Engineering, University of Cincinnati 2 Topics Quick Facts … the big picture Myths and Misconceptions Committee Overview Overview: B73.1, B73.2, B73.3, B73.5 History Common Content Comments / Recent Updates to B73.1, B73.2, and B73.3 B73 Application Range Data Sheets B73 Suggestions and Questions 3 Quick Facts … the big picture “ASME B73 Pumps” a.k.a. “ANSI Pumps” Chemical duty, but broadly applicable … from benign to highly toxic material Cost effective, versatile, reliable Broad range of MOC … from ductile iron to Titanium to nonmetallics Used globally ~75,000 manufactured annually Narrow pump type scope compared to API 610 Includes reliability and performance features and criteria (for example: Runout and maximum shaft deflections; Bearing frame lubrication, sealing and L10 life requirements; Vibration limits; etc.) 4 Myths and Misconceptions B73 are dimensional standards only … wrong B73 pumps are only found in chemical plants … wrong There is only one style of “ANSI” pump (sealed horizontal) … wrong And the corollary – there is only one “ANSI” pump standard … wrong The B73 standards with “M” in the designations (ex: B73.1M1991) are current … wrong B73 pumps do not allow customization or options … wrong 5 B73 Committee Overview B73 Committee administered by ASME based on consensus process and standards are accredited by ANSI. Balance of Interest: Pump manufacturers, users, and other interested parties, with nearly equal representation between manufacturers and users. The Committee regularly holds meetings, web-meetings, or tele-conferences, which are open to the public. Revisions are made periodically to the standard in accordance with ANSI requirements. The Committee welcomes suggestions/comments. Standards users may: Request interpretations; Propose revisions; Attend Committee meetings. 6 Overview: B73.1, B73.2, B73.3, B73.5 ASME B73.1 Specification for Horizontal End Suction Centrifugal Pumps for Chemical Process Current issue date: 2012 ASME B73.2 Specification for Vertical In-Line Centrifugal Pumps for Chemical Process Current issue date: 2003 (revision now in final draft) ASME B73.3 Specification for Sealless Horizontal End Suction Centrifugal Pumps for Chemical Process Current issue date: 2015 Both Mag Drive and Canned Motor ASME B73.5M Specification for Thermoplastic and Thermoset Polymer Material Horizontal End Suction Centrifugal Pumps for Chemical Process Withdrawn 2012, content merged into B73.1 7 (Brief) History B73.1 Horizontal Efforts initiated in 1955 … eventual development of American Voluntary Standard (AVS) in 1962, followed by a similar HI tentative standard in 1965. Both the AVS and HI standards superseded by ANSI B123.1, approved 1968 (pub 1971). B73.1 superseded B123.1 in 1974, starting with 15 pump sizes. Content and scope expanded with each edition, current edition 2012. B73.2 Vertical In-Line Efforts initiated in 1969 at request of Manufacturing Chemists Association (MCA), added to scope of B73 in 1971, and first edition approved in 1975. Content and scope expanded with each edition, expect approval of next edition in 2016. B73.3 Sealless Efforts formally initiated in 1986, with first edition approved in 1997. Content and scope expanded with each edition, current edition 2015. B73.5 Non-metallic Efforts formally initiated in 1986, with first edition published in 1995, withdrawn 2012. 8 Common Content Address design and specification for single stage centrifugal pumps for chemical process Include design features to facilitate installation and maintenance and to enhance reliability and safety Include dimensional interchangeability requirements so that pumps from any source of supply will be interchangeable from an installation perspective (not individual parts!) Broadly applicable beyond chemical process Reference / leverage other national and international standards (ease of use, current, minimize content) 9 Comments/Updates Specific to B73.1 Horizontal End Suction Centrifugal Pumps Covers metallic and solid polymer centrifugal pumps of horizontal, end suction, single stage, centerline discharge design. Recent Revisions: B73.5 on solid polymer pumps was merged into B73.1 (B73.5 was withdrawn.) Image provided courtesy of Flowserve US, Inc, All rights reserved Revisions made to further improve the reliability of the B73.1 pumps. Added mechanical seal configuration code and material classification code. Universal cover added as an alternate sealing cover. C-face motor adapters now an option. Default performance test acceptance grade revised to reflect the new HI/ISO performance test standard. Reference now made to API practices for mechanical seal configurations, and cooling and heating plans. New data sheet common to B73.1 and B73.2 developed and added. Endorses electronic data exchange standard developed by HI and Fiatech. 10 Comments/Updates Specific to B73.2 Vertical End Suction Centrifugal Pumps Covers centrifugal pumps of vertical shaft, single stage design with suction and discharge nozzles in-line. Recent Revisions: Revisions made to further improve the reliability of the B73.2 pumps. Image courtesy of ITT Goulds Added mechanical seal configuration code and material classification code. Universal cover added as an alternate sealing cover. Nomenclature for pump sizes added to align with sizes identified in B73.1. Default performance test acceptance grade revised to reflect the new HI/ISO performance test standard. Reference now made to API practices for mechanical seal configurations, and cooling and heating plans. New data sheet common to B73.1 and B73.2 developed and added. Endorses electronic data exchange standard developed by HI and Fiatech. 11 Comments/Updates Specific to B73.3 Sealless Horizontal End Suction Centrifugal Pumps Covers metallic and plastic lined sealless centrifugal pumps of horizontal, end suction single stage, centerline discharge design. Recent Revisions: Revisions made to further improve the reliability of the B73.3 pumps. Reference made to Hydraulic Institute fluid circulation piping plans. Material classification code added. Image courtesy of Goulds Plastic lined magnetic drive pumps added to scope due to prevalence throughout the chemical industry. Close coupled pumps are an option, and close coupled pump baseplates have been shortened. Table for ASTM material specifications expanded; table for minimum requirements for auxiliary piping materials added. Default performance test acceptance grade revised to reflect the new HI/ISO performance test standard. New data sheet developed and added. Image courtesy of Teikoku Endorses electronic data exchange standard developed by HI and Fiatech. 12 B73 Application Range Size: 1.5x1-6 through 10x8-17 Flow: 4,000 gpm (909 m3/h) at 60 Hz Head: 600 feet (183 meters) at 60 Hz Temperature: up to 500°F (260°C) Casing Pressure: at least as great as pressure-temperature rating of ASME B16.5 Class 150 or ASME B16.42 Class 150 flanges for material used, although higher pressure rating often available with Class 300 flanges. Manufacturers may offer pumps rated beyond these nominal values 13 Data Sheets An ASME B73.1 and B73.2 data sheet is available for free download and use. The data sheet is in fillable pdf format and may be saved. Data may be updated at a later time, and printed or shared electronically. We expect to post the B73.3 data sheet soon for free download and use. 14 Data Sheets To download, navigate to the ASME B73.1 page, or go directly to: https://www.asme.org/products/codesstandards/b731-2012-specificationhorizontal-end-suction Here’s the download link 15 Suggestions or Questions? Suggestions or questions? Suggestions for improvement to the Standards should be sent to: Secretary, B73 Standards Committee The American Society of Mechanical Engineers Two Park Avenue New York, NY 10016-5990 http://go.asme.org/Inquiry If interested in participating in ASME B73 activities (especially users), please contact the B73 secretary at the address above. 16
