ISO 10431:1993
(Main)Petroleum and natural gas industries — Pumping units — Specification
Petroleum and natural gas industries — Pumping units — Specification
Lays down the specification covering the design and rating. Specifies the requirements for the dimensional characteristics, chemical and mechanical properties and gauging practice. Requirements are specified in the sixteenth edition of API Specification 11E (Spec 11E), October 1989, which is adopted as ISO 10431. For the purposes of international standardization, modifications have been made that are outlined.
Industries du pétrole et du gaz naturel — Unités de pompage — Spécifications
General Information
Standards Content (Sample)
INTERNATIONAL
ISO
STANDARD
10431
First edition
1993-12-15
Petroleum and natura1 gas industries -
Pumping units - Specification
Industries du petrole et du gaz na turel - Unitbs de pompage -
Spkifica tions
Reference number
ISO 10431: 1993(E)
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ISO 10431:1993(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be re-
presented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 10431 was prepared by the American Petro-
leum Institute (API) (as Spec 11 E, 16th edition) and was adopted, under
a special “fast-track procedure ”, by Technical Committee ISO/TC 67, Ma-
terials, equipment and offshore structures for Petroleum and natura1 gas
industries, in parallel with its approval by the ISO member bodies.
0 ISO 1993
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopyrng and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
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42 ISO
ISO 10431:1993(E)
Introduction
International Standard ISO 10431:1993 reproduces the content of
API Spec 11 E, 16th edition, 1989 and its Supplement 1 (July 1, 1991).
ISO, in endorsing this API document, recognizes that in certain respects
the latter does not comply with all current ISO rules on the presentation
and content of an International Standard. Therefore, the relevant technical
body, within lSO/TC 67, will review ISO 10431:1993 and reissue it, when
practicable, in a form complying with these rules.
This Standard is not intended to obviate the need for Sound engineering
judgement as to when and where this Standard should be utilized and
users of this Standard should be aware that additional or differing require-
ments may be needed to meet the needs for the particular Service in-
tended.
Standards referenced herein may be replaced by other international or
national Standards that tan be shown to meet or exceed the requirements
of the referenced Standards.
Appendix G to this document shall not be considered as requirements.
. . .
Ill
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This page intentionally lef? blank
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INTERNATIONAL STANDARD 0 ISO
ISO 10431:1993(E).
Petroleum and natura1 gas industries - Pumping
units - Specification
1 Scope
This International Standard lays down specification covering the design and rating of pumping units.
2 Requirements
Requirements are specified in:
“API Specification 11 E (Spec 11 E), Sixteenth Edition, October 1, 1989 - Specification for Pumping Units ”,
which is adopted as ISO 10431.
For the purposes of internationl standardization, however, modifications shall apply to specific clauses and para-
graphs of publication API Spec 11 E. These modifications are outlined below.
Throughout publication API Spec 11 E, the conversion of English units shall be made in accordance with ISO 31,
Parts 1 and 3. In particular,
LENGTH 1 inch (in) = 25,4 mm (exactly)
= 304,8 mm (exactly)
1 foot (ft)
MASS 1 pound (Ib) = 0,453 59237 kg (exactly)
PRESSURE 1 pound-forte per Square inch (Ibf/in*) = 6894,76 Pa
or 1 psi
VOLUME 1 cubic inch (in3) = 16,387 064.1 O-3 dm3 (exactly)
AREA 1 Square inch (in*) = 645,16 mm* (exactly)
VELOCITY 1 foot per second (ft/s) = 0,3048 m/s (exactly)
TORQUE 1 inch pound-forte (inlbf) - = 0,112985 N*m
Page 11
Information given in the POLICY is relevant to the API publication only.
Page 64
Appendix G
Information relating to the use of API monogram is rel evant to the API publication only.
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ISO 10431:1993(E)
(Blank Page)
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ISO 10431:1993(E).
Specification for Pumping Units
API SPECIFICATION IIE (SPEC IIE)
SIXTEENTH EDITION, OCTOBER 1, 1989
American Petroleum Institute
1220 L Street, Northwest
Washington, DC 20005
rT>
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ISO 10431:1993(E)
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ISO 10431:1993(E)
Supplement 1
(July 1, 1991)
Specification for Pumping Units
API SPECIFICATION IIE (SPEC IIE)
SIXTEENTH EDITION, OCTOBER 1, 1989
American Petroleum Institute
1220 L Street, Northwest
Washington, DC 20005
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ISO 10431:1993(E)
Issued by
AMERICAN PETROLEUM INSTITUTE
Production Department
FOR INFORMATION CONCERNING TECHNICAL CONTENT OF
THIS PUBLICATION CONTACT THE API PRODUCTION DEPARTMENT,
1201 MAIN STREET, SUITE 2535, DALLAS, TX 75202-3904 - (214) 748-3841.
SEE BACK COVER FOR INFORMATION CONCERNING HOW TO OBTAIN
ADDITIONAL COPIES OF THIS PUBLICATION.
Users of this publication should become completely familiar with its scope
and content, including any provisions it may have regarding marking of
manufactured products. This document is intended to Supplement rather than
replace individual engineering judgment.
OFFICIAL PUBLICATION
REG. U.S. PATENT OFFICE
Copyright @ 1991 American Petroleum Institute
---------------------- Page: 10 ----------------------
ISO 10431:1993(E)
Foreword Page 6. Replace the equation in Column 4, Row 2 of
Table 2.1 with:
This supplement contains revisions authorized at the
1990 Standardization Conference as reported in Circ * JiyE-7
PS-1920 and approved by letter ballot.
SJ
Page 5. Replace Par. 2.4 and Fig. 2.1 with the
Delete all the nomenclature at the end of Table 2.1 and
following:
replace it with:
2.4 Walking Bearm The following formula shall be
* Where:
used for rating conventional walking beams as shown
J= Torsional constant, in4
in Fig. 2.1.
l= Longest laterally, unbraced length of beam,
w= febSx
inches (longer of A or C (See Fig. 2.1)).
A
E =Modulus of elasticity; 29,000,OOO psi.
Wherein:
1, =Weak axis moment of inertia, in4.
W = walking-beam rating in pounds of polished-
rod load.
G =Shear modulus; 11,200,OOO psi.
f compressive stress in bending in pounds per
cb =
Square inch. See Table 2.1 for maximum
allowable stress.
s, = section modulus in cubic inches. The gross
section of the rolled beam may be used
except that holes or welds are not permissi-
ble on the tension flange in the critical Zone.
See Fig. 2.1.
A= distance from centerline of saddle bearing to
centerline of well in inches. See Fig. 2.1.
C= distance from centerline of saddle bearing to
centerline of equalizer bearing in inches. See
Fig. 2.1.
b CRITICAL ZONE IN
TENSION FLANGE
FIG. 2.1
WALKING-BEAM ELEMENTS
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ISO 10431:1993(E)
Order No. 811-05201
Additional copies available from
AMERICAN PETROLEUM INSTITUTE
Publications and Distribution Section
1220 L Street, NW
Washington, DC 20005
(202) 682-8375
8
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ISO 10431:1993(E)
Issued by
AMERICAN PETROLEUM INSTITUTE
Production Department
FOR INFORMATION CONCERNING TECHNICAL CONTENTS OF
THIS PUBLICATION CONTACT THE API PRODUCTION DEPARTMENT,
1201 MAIN STREET, SUITE 2535, DALLAS, TX 75202-3904 - (214) 748-3841.
SEE BACK COVER FOR INFORMATION CONCERNING HOW TO OBTAIN
ADDITIONAL COPIES OF THIS PUBLICATION.
Users of this publication should become completely familiar with its scope
and content, including any provisions it may have regarding marking of
manufactured products. This document is intended to Supplement rather than
replace individual engineering judgment.
OFFICIAL PUBLICATION
REG. U.S. PATENT OFFICE
Copyright Q 1989 American Petroleum Institute
---------------------- Page: 13 ----------------------
ISO 10431:1993(E)
2 American Petroleum Institute
TABLE OF CONTENTS
Page
Policy . . . . . . . . . . . . . . . . . . . . . . . . . .g.e~~.o.~~. 3
Foreword.=. 4
4
Sect.1: Scope.~ .
.....................................
Sect. 2: Pumping-Unit Structures 5
......................................
Se&. 3: Pumping-Unit Reducers. 9
Sect. 4: Inspection and Rejection. . . . . . . . . . . . . . . . . . . . . . . . . . -. . . . . . . . . . 29
Appendix A: Approved Data Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Appendix B: Recommended Practice for the Calculation and
Application of Torque Factor on Pumping Units . . . . . . . . 32
(Rear Mounted Geometry Class 1 Lever Systems with
Crank Counterbalance)
Appendix C: Recommended Practice for the Calculation and
Application of Torque Factor Oh Pumping Units . . . . . . . . 39
(Front Mounted ’Geometry Class 111 Lever Systems with
Crank Counterbalance)
Appendix D: Recommended Practice for the Calculation and
Application of Torque Factor on Pumping Units . . . . . . . . 44
(Front Mounted Geometry Class 111 Lever System
Air Counterbalance)
Appendix E: Recommended Practice for the Calculation and
Application of Torque Factor on Pumping Units . . . . . . . . 48
(Rear Mounted Geometry Class 1 Lever Systems with
Phased Crank Counterbalance)
Appendix F: Recommended Practice for Calculation Torque Ratings
for Pumping Unit Gear Reducers . . . . . . . . . . . . . . . . . . . . . D 54
Appendix G: Use of API Monogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Note
Requests for Permission to reproduce or translate all or
any part of the material published herein should be
This edition Supersedes the fifteenth edition of Spec
addressed to the Director, American Petroleum Institute,
11E. It includes changes adopted at the 1988 Stand-
Production Department, 1201 Main Street, Suite 2535,
ardization Conference as reported in Circ PS-1858 and
Dallas TX 7520%?90.&
subsequently passed by letter ballot.
IO
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ISO 10431:1993(E)
Spec 11E: Pumping Units
3
POLICY
API PUBLICATIONS NECESSARILY ADDRESS
THING CONTAINED IN THE PUBLICATION BE
PROBLEMS OF A GENERAL NATURE. WITH CONSTRUED AS INSURING ANYONE AGAINST
RESPECT TO PARTICULAR CIRCUMSTANCES,
LIABILITY FOR INFRINGEMENT OF LETTERS
LOCAL, STATE AND FEDERAL LAWS AND REG- PATENT.
ULATIONS SHOULD BE REVIEWED.
GENERALLY, API STANDARDS ARE REVIEWED
AND REVISED, REAFFIRMED, OR WITHDRAWN
API IS NOT UNDERTAKING TO MEET DUTIES
AT LEAST EVERY FIVE YEARS. SOMETIMES A
OF EMPLOYERS, MANUFACTURERS OR SUP-
ONE-TIME EXTENSION OF UP TO TWO YEARS
PLIERS TO WARN AND PROPERLY TRAIN AND
WILL BE ADDED TO THIS REVIEW CYCLE. THIS
EQUIP THEIR EMPLOYEES, AND OTHERS EX-
PUBLICATION WILL NO LONGER BE IN EFFECT
POSED, CONCERNING HEALTH AND SAFETY
FIVE YEARS AFTER ITS PUBLICATION DATE
RISKS AND PRECAUTIONS, NOR UNDERTAKING
AS AN OPERATIVE API STANDARD OR, WHERE
THEIR OBLIGATIONS UNDER LOCAL, STATE, OR
AN EXTENSION HAS BEEN GRANTED, UPON
FEDERAL LAWS.
REPUBLICATION. STATUS OF THE PUBLICATION
NOTHING CONTAINED IN ANY API PUBLICA-
CAN BE ASCERTAINED FROM THE API AUTHOR-
TION IS TO BE CONSTRUED AS GRANTING ANY
ING DEPARTMENT (TEL. 214-748-3841). A CATALOG
RIGHT, BY IMPLICATION OR OTHERWISE, FOR
OF API PUBLICATIONS AND MATERIALS IS
THE MANUFACTURE, SALE, OR USE OF ANY
PUBLISHED ANNUALLY AND UPDATED QUAR-
METHOD, APPARATUS, OR PRODUCT COVERED
TERLY BY API, 1220 L ST., N.W., WASHINGTON,
BY LETTERS PATENT. NEITHER SHOULD ANY-
D.C. 20005.
11
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ISO 10431:1993(E)
4 American Petroleum Institute
API SPECIFICATION FOR PUMPING UNITS
Foreword 3. Pumping-unit gear reducer.
4. Pumping-unit chain reducer.
a. This specification is under the jurisdiction of
5. Pumping-unit beam counterbalance.
the Committee on Standardization of Production
Equipment. 6. Pumping-unit trank counterbalance.
e. Attention Users of this Publication: Portions of
b. This specification covers designs and ratings of
beam-type pumping-unit components. It does not this publication have been changed from the previous
cover Chemical properties of materials, nor the use
edition. The location of changes has been marked with a
of the equipment.
bar in the margin. In some cases the changes are signif-
icant, while in other cases the changes reflect minor
c. Approved forms are given in Appendix A f or
rating of trank couuterbalances and for recor*ding
editorial adjustments. The bar notations in the margins
pumping-unit stroke and torque factors.
are provided as an aid to users to identify those Parts of
this publication that have been changed from the pre-
d. The following nomenzlature is Standard:
vious edition, but API makes no warranty as to the
1. Pumping unit.
accuracy of such bar notations.
2. Pumping-unit structure.
SECTION 1
SCOPE
1.4 API Specifications may be used by anyone desir-
1.1 This specification covers the design and rat-
ing of the following:
ing to do so, and diligent effort has been made by the
8. Pumping-unit structure.
Institute to assure the accuracy and reliability of the
b. Pumping-unit gear reducer. data contained therein. However, the Institute makes no
c. Pumping-unit chain reducer.
representation, warranty, or guarantee in connection
with the publication of any API Specification and hereby
expressly disclaims any liability or responsibility for
1.2 American Petroleum Institute (API) Specifica-
loss or darnage resulting from their use, for any viola-
tions are published as aids to the procurement of stand-
tion of any federal, state, or municipal regulation with
ardized equipment and materials, as well as instruc-
which an API Specification may conflict, or for the
tions to manufacturers of equipment or materials
infringement of any patent resulting from the use of an
covered by an API Specification. These Specifications
API Specification.
are not intended to obviate the need for Sound engineer-
ing, nor to inhibit in any way anyone from purchasing
1.5 Any manufacturer producing equipment or mate-
or producing products to other specifications.
rials represented as conforming with an API Specifica-
tion is responsible for complying with all the provisions
of that Specification. The American Petroleum Institute
1.3 The formulation and publication of API Specifi-
does not represent, Warrant or guarantee that such prod-
cations and the API monogram program is not intended
ucts do in fact conform to the applicable API Standard
in any way to inhibit the purchase of products from
companies not licensed to use the API monogram. or specification.
12
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ISO 10431:1993(E)
Spec 11E: Pumping Units 5
-.
SECTION 2
PUMPING-VNIT STRUCTURES
NOTE: It is the spirit and intent of above
2.1 Scope. This section covers:
provision, that any manufactuzer having au-
a. Standardization of specific structure sizes in com- thom ’ty to use the API monogram on pumping-
unit structures, may not aepresent a structure
bination with established reducer sizes as given in
camying the monogram w for which the letters
Section 3.
API OT the words “Ametican Petroleum Insti-
tute” are used in its description as having a
b. Walking beam design, with specific rating
rating of any kind or size other thun yurovided
formula.
above. This applies to sales information as weil
as to stnecture markings.
c. Design loads and limiting working Stresses on
other structural components are also included.
2.4 Walking Beam. The following formula shall
be used for rating conventional walking beams as
NOTE: Only bads imposed on the strwtwe a.nd/oy
shown in Fig. 2.1.
guar redwer hg the polished rod Load are considered
in thia slwificatiou. Additional loads on the pwnping
fcbS
‘Wz-
wCf imposcd h,y add-on dezices attached to the redwer,
I
L
walking heam, or other strwtwaI components arc not
part of th is specif ica tion. Wherein:
These wo~rld inclz~de swh
deuks as compressors, stroke increasera, etc.
W = walking-beam rating in pounds of polished-
rod load.
2.2 No dimensional requirements, other than stroke
L = greater of lf or 1,
length, are established. Rating methods are given only
for polished-rod capacities; however, allowable working f& = compressive stress in bending in pounds per
Stresses of other structural components for a given pol- Square inch. See Table 2.1 for maximum
ished rod capacity are defined.
allowable stress.
S= section modulus in cubic inches. The gross
Other design criteria such as bearing design, braking
section of the rolled beam may be used
capacity, etc., are also established.
except that holes or welds are not permissi-
ble on the tension flange in the critical Zone.
2.3 Standard Pumping-Unit Series. It is recom-
mended that pumping units furnished to this specifica- See Fig. 2.1.
tion adhere to the gear reducer rating, structure capac-
lf = distance from centerline of saddle bearing to
ity, and stroke length as given in Table 2.2, although
centerline of well in inches. See Fig. 2.1.
the combinations of these items that make up the
pumping unit designation need not be identical to those
= distance from centerline of saddle bearing to
1,
in the table. The particular combinations in the table
centerline of equalizer bearing in inches. See
are typical but combinations other than those listed are
acceptable under this Standard. Fig. 2.1.
I
CRITICAL ZONE
TENSION FLAN
-?-
d
FIG. 2.1
WALKINGBEAM ELEMENTS
13
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ISO 10431:1993(E)
6 American Petroleum Institute
TABLE 2.1
MAXIMUM ALLOWABLE STRESSES IN PUMPING-UNIT WALKING BEAMS
(See Fig. 2.1)
4
3
1 2
ASTM A36
Stress Symbol
Structural Steel
11,000
1 Tensile stress in extreme fibers in bending, -- psi. - ftb
*6,000,000
2
Compressive stress in extreme fibers in bending, psi.
f rh
Id
J -”
(May not exceed values on line 3)
bt
3 Maximum compressive stress in bending, except as
11,000
Cb
f
limited by equation on line 2, psi.
longest laterally, unbraced length of beam, inches (longer of 1, or lf, See Fig. 2.1).
1 =
d = depth of beam section, inches.
b = width of compression flange, inches.
t = thickness of compression flange, inches.
2.6 Unit Rotation. Viewed from the side of the
NOTE: The formula given ii2 Par. 2.4 is based
pumping unit with the well head to the right, trank
on the conventional beam construction Sing a
rotation is defined as either clockwise or counter-
Single rolled scction. With unconventional CO~-
clockwise.
struction or built-u.p sectz ’ons, due regard shall
be given to Change in loading, to checking
2.7 Design Loads for All Structural Members
Stresses at all critical sections, and to the esist-
Except Walking Beams. For all pumping unit geome-
ence of stress concentrating factors.
tries, and unless otherwise specified. use the maximum
load exerted on the component in question by examin-
2.5 The working stress, fcb for the beam rating for-
ing the loads on the component at each 15” trank posi-
mula given in Par. 2.4, shall be determined from Table
tion on the upstroke of the pumping unit. Use polished
2.1. For Standard rolled beams having Cross sections
rod load W, for all upstroke trank positions. (See Par.
symmetrical with the horizontal neutral axis, the criti-
2.k)
cal stress will be compression in the lower flange. The
For units with bi-directional rotation and non-
maximum value of this stress, j& is the smaller of the
symmetrical torque factors, the direction of rotation for
values determined from lines 2 and 3 of Table 2.1.
PUMPING-UNIT
SPEC IIE
STRUCTURE
I
PUMPING UNIT STRUCTURE i
STRUCTURAL UNBALANCE (POUNDS) i
(
1 1
SERIAL NUMBER
(NAME OF MANUFACTURER)
(ADDRESS OF MANUFACTURER)
FIG. 2.2
PUMPING-UNIT STRUCTURE NAME PLATE
twd positive whc21 thr .fowc iwp ird crt tlrc po1 islwr~
NOTE: Stnwtwal dmlaw~ is thaf .fowc, iw po~r~d~
md is dowm~~aw!, 0 d wgcrt iw wh(w qwc~ rd. TIw
wc~~~ired at thp polishtd Tod to hold thc kam in a
minus (-) sign shall be stumped on. the name plate
hwixoi~tal position with thp pkwms disco~riwc~tcd afi-onl
whmt th is valw is wyptiw.
tho cra.itk p ins. This strw~twal ~thcrlcr~~ is co~~ici-
14
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ISO 10431:1993(E)
Spec 11E: Pumping Units
7
design calculations shall be that which results in the
2.11 Brakes. Pumping unit brakes shall have suffi-
highest loading on structural components.
cient braking capacity to withstand a torque exerted by
the cranks at any trank Position with a maximum
Due consideration shall be given to the direction of
amount of counterbalance torque designed by the
loading on all structural bearings and on the structural
manufacturer for the particular unit involved. This
members supporting these bearings.
braking torque to be effective with the pumping unit at
rest under normal operating conditions with the well
NOTE: Allowable streas levels are based on simple
disconnected.
atreaaes withou t conaideration of stress risers. Ade-
quate streaa concentration factors shall be used when
NOTE: The pumpinq unit brake is not intended us a
.
atresa riaers occur.
safety stop but is intended for operational stops only.
2.8 Design Stresses for All Structural Members
When operations or maintenance are to be conducted
Except Walking Beam, Bearing Shafts and Cranks.
of the trank
on or around a pumping unit, the Position
arms and counterweights should be securely fiaed in a
a. Design Stresses for all structural components shall
stationary Position by chaining or other acceptahle
be a function of the yield strength of the material,
means.
Sy, psi.
2.12 Horseheads. Horseheads shall be either hinged
b. Components subjected to simple tension or com-
or removable to provide access for well servicing.
Pression and non-reversing bending shall have a
limiting stress of .3 Sy. If stress risers occur in
Horseheads shall be attached to the walking beam in
critical zones of tension members, the limiting
such a manner as to prevent falling off due to a high
stress shall be 25 Sy.
rod part or other sudden load changes.
c. Components subjected to reverse bending shall
The distance from the Pivot Point of the horsehead to
have a limiting stress of 2 Sy.
the tangent Point of the wireline on the horsehead shall
have a maximum dimensional tolerante at any Position
d. The following formula shall be used for all compo-
of the stroke of the following values:
nents acting as columns:
+s in. for stroke lengths to 100 in.
w~~!+[I-~(y]
15/x in. for stroke lengths 100 in. to 200 in.
$ - in. for stroke lengths of 200 in. and longer
Wherein:
2.13 Cranks. All combined Stresses in cranks shall
be limited to a maximum value of .15 Sy.
Wz = maximum applied load on column, lbs.
2.14 Structural Bearing Design. Structural bear-
a
= area of Cross section, sq. in. ing shafts may be supported in sleeve or anti-friction
bearings.
SY = yield strength of material, psi
a. Anti-Friction Bearings.
n
= end restraint constant (assume = 1)
For bearings subject to oscillation or rotation use
E
= modulus of elasticity, psi
the bearing load ratio formula:
= unbraced length of column, in.
R,=kC,
r -
- radius of gyration of section, in.
w
1
1
shall be limited to a maximum of 90. Forr
Where:
r
values of 30 or less, columns may be
= bearing load ratio
R
assumed to be acting in simple compression
= 1 for bearings rated at 33-1/3 rpm and 500
k
(See Par. 28b).
hours or
= 3.86 for bearings rated at 500 rpm and 3000
k
2.9 Shafting. All bearing shafts as well as other
hours
structural shafting shall have limiting Stresses as out-
= bearing manufacturer ’s specific dynamic
G
lined in Par. 3.8 in the reducer section of this
rating in lbs.
specification.
= maximum load on bearing in lbs.
K
2.10 Hanger. Wirelines for horseheads shall have a
For bearings subject to oscillation only use an R,
minimum factor of safety of five when applied to the
value of 2.0 or greater.
breaking strength of the wireline.
For bearings subject to rotation use an R, value
For allowable Stresses on carrier bar, end fittings.
of 2.25 or greater.
etc., see Par. 2.8b and 2.8~.
15
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ISO 10431:1993(E)
8 American Petroleum Institute
TABLE 2.2
PUMPING UNIT SIZE RATINGS
4
1 2 3
~~
Max. Max.
Stroke
Reducer Structure Stroke Reducer Structure
Pumping Unit Rating, Capacity, Length, Pumping Unit Rating, Capacity, Length,
in. in.
Size in .-lb Ib Size in Ab Ib
16 320-213- 86 320,OOO 21,300
6.4- 32- 16 6,400 3,200
2,100 24 320-256-100 320,OOO 25,600
6.4- 21- 24 6,400
320-305-100 320,000 30,500
lO- 32- 24 3,200 24 320-213-120 320,000 21,300
10,ooo
lO- 40- 20 10,ooo 4,000 20 320-256-120 320,OOO 25,600
320-256-144 320,OOO 25,600
16- 27- 30 16,000 2,700 30
30
16- 53- 30 16,000 5,300
456-256-120 120
456,000 25,600
456-305-120 120
456,000 30,500
30
25- 53- 30 25,000 5,300
456-365-120 456,000 36,500 120
5,600 36
25-56-36 25,000
456-256-144 456,000 25,600 144
25,000 6,700 36
25- 67- 36
456-305-144 456,000 30,500 144
456-305-168 456,OOO 3o,,coo 168
40- 89- 36 40,ooo 36
8,900
42
4O- 76- 42 40,ooo 7,600
640-305-120 640,000 30,500 120
42
40- 89- 42 40,ooo 8,900
144
640-256-144 640,OOO 25.600
48
40- 76- 48 40,mo 7,600
640-305-144 640,OOO 30,500 144
144
640-365-144 640,OOO 36,500
42
57- 76- 42 57,000 7,600
640-305-168 640,OOO 30,500
42
57- 89- 42 57,000 8,900
640-305-192 640,000 30,500 :E
9,500 48
57- 95- 48 57,000
10,900 48
57-lo9- 48 57,000
912-427-144 912,000 42,700 144
7,600 54
57- 76- 54 57,000 168
912-305-168 912,000 30,500
912-365-168 168
912,000 36,500
80-HB- 48 80,000 10,900 48
912-305-192 912,000 30,500 192
8o-133- 48 80,000 13,300 48
912427-192 912,000 42,700 192
8o-119- 54 80,OOO 11,900 54
912470-240 912,000 240
8o-133- 54 80,OOO 13,300 54 216
912427-216 912,ooQ :xE
9
8O-119- 64 80,ooo 11,900 64
1280-427-168 42,700 168
1,280,OOO
54
114-133- 54 li4,ooo 13,300 1280-427-192 42,700 192
1,280,ooo
64
114-143- 64 114,000 14,300 1280-427-216 1,280,ooo 42,700 216
64
114-173- 64 114,000 1280-470-240 1,280,ooo 47,000 240
%z 74
114-143- 74 114,000 128O-470-300 1,280,OOO 47,000 300
11:9oo 86
114-119- 86 114,000
192
1824427-192 1,824,OOO 42,700
64
so-173- 64 160,OOO 216
1824-427-216 1,824,OOO 42,700
:7'E 74
Eo-143- 74 240
1824-470-240 1,824,OOO 47,ooo
17:3oo 74
16o-173- 74 :s~~~~ 1824-470-300 47,000 300
1,824,OOO
74
xo-2oo- 74 16O;OOO 20,ooo
86
16o-173- 86 16O,OOO 17,300
2560-470-240 47,ooo 240
2,560,OOO
2560-470-300 2,56O,OOO 47,000 300
17,300
228-173- 74 228,000
20,ooo
228-2oo- 74 228,000
3648-470-240 3,648,OOO 47,000 240
21,300
228-213- 86 228,ooo 300
3648-470-300 3,648,OOO 47,000
228,000 24,600
228-246-86
228,000 17,300
228-173-100
228,000 21,300
228-213-120
16
---------------------- Page: 20 ----------------------
ISO 10431:1993(E)
Spec 11E: Pumping Units 9
b. Sleeve Bearings. name plate may contain other non-conflicting and
appropriate information, such as model number or lub-
The design of sleeve bearings is beyond the
rication instructions.
scope of this specification. It shall be the responsi-
bility of the pumping unit manufacturer to design 2.17 In Order that the torque on a reducer may be
sleeve bearings, based on available test data and determined conveniently and accurately from dyna-
mometer test data, manufacturers of pumping units
field experience, which are comparable in per-
shall provide. on request of the purchaser, stroke and
formante to anti-friction bearings designed for the
Same operating loads and Speeds. torque factors for each 15deg Position of the trank. An
approved form for the Submission of these data is
2.15 Installation Markings. Clearly defined and
shown in Appendix A.
readily usable markings shall be provided on the end
Cross members of the base to indicate the vertical pro-
*Uscrs of this specification should note that there is no langer a
jection of the walking beam centerline. The markings
requircment for marking a product with the API monogram.
shall be applied with a chisel, Punch, or other suitable The Amcrican Petroleum Institute continues to licensc use of
the monogram on products covered hy this specification but it is
tool.
administered by the staff of the Institute separately from the
2.16 Marking.’ Esch pumping-unit structure shall
specification. The policy describing licensing and use of the
be provided with a name plate substantially as shown
monogram is contained in Appendix H. herein. Ko other use of
in Fig. 2.2. At the discretion of the manufacturer, the the monogram is permitted.
SECTION 3
PUMPING-UNIT REDUCERS
3.1 SCOPE
capable of safely carrying the rated peak torque under
normal oilfield conditions.
Applicability. This Specificati
...
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