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