1、MSS SP-101-2014 Part-Turn Valve Actuator Attachment _ FA Flange and Driving Component Dimensions and Performance Characteristics Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180-4
2、602 Phone: (703) 281-6613 Fax: (703) 281-6671 E-mail: standardsmss-hq.org www.mss-hq.org MSS STANDARD PRACTICE SP-101i This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 408 and the MSS Coordinating Committee. The content of this Standard Practice is the resu
3、lting efforts of competent and experienced volunteers to provide an effective, clear, and non-exclusive standard that will benefit the industry as a whole. This MSS Standard Practice describes minimal requirements and is intended as a basis for common practice by the manufacturer, the user, and the
4、general public. The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance to this Standard Practice is established only by reference in other documents such as a code, specification,
5、sales contract, or public law, as applicable. MSS has no power, nor does it undertake, to enforce or certify compliance with this document. Any certification or other statement of compliance with the requirements of this Standard Practice shall not be attributable to MSS and is solely the responsibi
6、lity of the certifier or maker of the statement. “Unless otherwise specifically noted in this MSS Standard Practice, other standards documents referred to herein are identified by the date of issue that was applicable to this Standard Practice at the date of issue of this Standard Practice (see Anne
7、x A). This Standard Practice shall remain silent on the applicability of those other standards of prior or subsequent dates of issue even though applicable provisions may not have changed. References contained herein which are bibliographic in nature are noted as supplemental in the text.” By public
8、ation of this Standard Practice, no position is taken with respect to the validity of any potential claim(s) or of any patent rights in connection therewith. MSS shall not be held responsible for identifying any patent rights. Users are expressly advised that determination of patent rights and the r
9、isk of infringement of such rights are entirely their responsibility. In this Standard Practice, all text, notes, annexes, tables, figures, and references are construed to be essential to the understanding of the message of the standard, and are considered normative unless indicated as “supplemental
10、”. All appendices, if included, that appear in this document are construed as “supplemental”. Note that supplemental information does not include mandatory requirements. The SI (metric) units and U.S. customary units in this Standard Practice are regarded separately as the standard; each should be u
11、sed independently of the other. Combining or converting values between the two systems may result in non-conformance with this Standard Practice. This document has been substantively revised from the previous 1989 (R 2001) edition. It is suggested that if the user is interested in knowing what chang
12、es have been made, direct page by page comparison should be made of this document and that of the previous edition. Non-toleranced dimensions in this Standard Practice are nominal, and, unless otherwise specified, shall be considered “for reference only”. Excerpts of this Standard Practice may be qu
13、oted with permission. Credit lines should read Extracted from MSS SP-101-2014 with permission of the publisher, Manufacturers Standardization Society of the Valve and Fittings Industry. Reproduction and/or electronic transmission or dissemination is prohibited under copyright convention unless writt
14、en permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc. All rights reserved. Originally Approved: June 1989 Originally Published: July 1989 Current Edition Approved: June 2014 Current Edition Published: December 2014 MSS is a registered trademark
15、 of Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Copyright , 2014 by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Printed in U.S.A. MSS STANDARD PRACTICE SP-101ii FOREWORD This MSS Standard Practice is based, in part, on ISO Interna
16、tional Standard 5211, Industrial Valves Part-turn Actuator Attachments. It also reflects the current practice of the valve and valve actuator industries in markets where Unified “UN” Thread Forms are the norm. Therefore, the ratings, sizes, and/or number of flange types in the MSS Standard Practice
17、may differ from those of ISO 5211. The MSS flange types use the ISO designation with the addition of an “A“, to distinguish them for markets where the UN Thread Form is the customary standard. When assembling an actuator to a valve, a user is concerned with performance and mechanical interface. In r
18、egards to performance, the user needs in part: Adequate output torque for valve breakaway and seating loads, and for dynamic loads at rated flow. A specified speed so closing and opening can be accomplished in a prescribed time. Sufficient power rating of the actuator so the valve may be cycled as r
19、equired. Input power requirements. For mechanical interface, the user is concerned in part with: The dimensional mating of the actuators mounting surface to the “valve“ mounting flange. The dimensional compatibility of the actuators driving components with the valve stem (shaft). Size and location o
20、f electrical and/or pressure connections. Sufficient space and capability to install and service the actuator. This Standard Practice will only concern itself with flange and driving component dimensions and performance characteristics. Dimensions and performance characteristics are shown in both U.
21、S. customary and SI (metric) units; however, they must be regarded separately as the standard and each should be used independently of the other. The dimensions for products designated as “A” (UN) are shown in U.S. customary (i.e., inches) with the SI (metric) equivalent in parenthesis. Common conve
22、rsion factors utilized within this Standard Practice, include: Conversion Factor Inches to Millimeters 25.4 Pound Feet to Newton Meters 1.356 Pounds to Kilonewtons 0.0044 Psi to Newton/mm20.006895 See MSS SP-86 for additional information and guidance for determining SI (metric) units and numbers whe
23、n needed for MSS Standard Practices. The figures contained herein are for the purpose of illustration and nomenclature only. MSS STANDARD PRACTICE SP-101iii TABLE OF CONTENTS SECTION PAGE 1 SCOPE 1 2 REFERENCES 1 3 DEFINITIONS 1 4 FLANGE TYPE/SIZE DESIGNATION . 1 5 ACTUATOR/VALVE INTERFACE REQUIREME
24、NTS 1 6 FLANGE SIZE AND PERFORMANCE 2 7 BASIS OF FLANGE PERFORMANCE SELECTION 2 8 ACTUATOR DRIVING COMPONENTS . 4 9 BASIS OF DRIVING COMPONENT SELECTION . 4 TABLE 1 FA Mounting Flange Torque Values and Flange Dimensions 3 2 Key Stress Limits (Ksi) . 4 3 Driving Component Dimensions . 5 4 Flatted Out
25、put Shaft Dimensions 6 5 Square Output Shaft Dimensions 7 FIGURE 1 Actuator Flange . 3 2 Shaft Orientation (Valve Top View Valve Closed) . 4 3 Keyed Output Assembly . 5 4 Flatted Output Shaft Details 6 5 Square Output Shaft Details 7 ANNEX A Referenced Standards and Applicable Dates 8 APPENDIX X1 Fl
26、ange Torque Rating Calculation Method 9 MSS STANDARD PRACTICE SP-1011 1. SCOPE 1.1 General This Standard Practice provides a basis for the standardization of part-turn actuator mounting dimensions and performance characteristics necessary for their attachment to general purpose industrial valves. It
27、 covers only those actuators supplied by manufacturers as separate components. 2. REFERENCES 2.1 Referenced Standards External standards incorporated by reference in this Standard Practice are detailed in Annex A for convenience of identifying edition, date, and source of supply. 3. DEFINITIONS 3.1
28、Actuator Any device designed for attachment to general purpose industrial valves in order to provide for the operation of the valve. Motive energy to the actuator can be electrical, pneumatic, manual, etc., or a combination of these. The movement is limited by travel, torque, thrust, or a combinatio
29、n of these. 3.2 Part-Turn Actuator An actuator which transmits a torque to the valve for less than one revolution. 3.3 Torque A turning moment transmitted through the mounting flanges and driving components, expressed in Pound Force-Foot (lbf-ft) or Newton Meters (Nm). 4. FLANGE TYPE/SIZE DESIGNATIO
30、N 4.1 General Flange types addressed by this Standard Practice are designated by the letters “FA“. The next two digits in the classification represent the bolt circle diameter (i.e., size), expressed in millimeters, appropriately rounded and divided by ten (10). The designation may be used to descri
31、be an actuator, a valve and any intermediate supports. Additional designations may be appended for more complete identification as follows: Flange Type/SizePilot Drive Nominal Shaft Diameter (D7) (inches) FAxx -Y -V (single key)x.xx -N -W (two key) -M -L (square) -P14 -H (flat) Where the pilot desig
32、nations: -Y indicates a female valve pilot in accordance with this Standard Practice -N indicates no pilot -M indicates a male valve pilot (requires an intermediate support between valve and actuator) -P14 indicates a pilot in accordance with earlier editions of this Standard Practice (will be elimi
33、nated in next revision) As an example, a flange designated “FA30-Y-V-4.5“ represents: a) One intended for markets where UN Thread Form is customary. b) One with a bolt circle diameter (BCD) (D3) of approximately 300 mm (exactly 298.5 mm or 11.75 in.). c) One with a pilot, a single key and suitable f
34、or a 4.5 inch nominal shaft. NOTE: The designation is not a marking requirement. 5. ACTUATOR/VALVE INTERFACE REQUIREMENTS 5.1 General When mating an actuator with a valve flange, the primary features of concern are the bolt pattern, type of bolt, the pilot, the performance, and the dimensions of the
35、 driving components. PART-TURN VALVE ACTUATOR ATTACHMENT FA FLANGE AND DRIVING COMPONENT DIMENSIONS AND PERFORMANCE CHARACTERISTICS MSS STANDARD PRACTICE SP-1012 6. FLANGE SIZE AND PERFORMANCE 6.1 Typical actuator flanges (tapped or through bolting) are shown in Figure 1. 6.2 The torque values and f
36、lange dimensions for “FA” mounting flanges can be found in Table 1. 6.2.1 The torque values listed in Table 1 represent the recommended maximum torques which can be transmitted through the mounting flanges and driving components. NOTE: Appendix X1 is a useful informational reference document to illu
37、strate the methodology employed to establish the flange torque ratings in this Standard Practice. 6.2.2 The through holes for bolts identified as (D4) shall be equispaced and the hole pattern must straddle the centerline of the actuator and the valve. The hole diameter tolerance shall be normal clea
38、rance per ASME B18.2.8. 6.2.3 For cases where the actuator flange design incorporates through bolting, the diameter of the clearance holes shall provide normal clearance per ASME B18.2.8 for the bolt sizes listed in Table 1. 6.2.4 Depth of threaded holes and length of thread engagement (H2) shall be
39、 sufficient to account for any strength limitations of the actuator material. 6.2.5 The pilot on the actuator (D2 and H1) and mating counter-bore on the valve are optional on “FA” flange types. Anywhere side loads are present, such as horizontal valve stems, use of a pilot and/or dowels should be co
40、nsidered. If a pilot is provided, dimensional tolerance shall be per ASME B4.1, Class LC7. 6.2.6 Dimension D1provides minimum land area for nuts and bolt heads. The shapes of the actuator and valve, outside of these areas, are not covered by this Standard Practice. 7. BASIS OF FLANGE PERFORMANCE SEL
41、ECTION 7.1 In determining the torque values shown in Table 1, the following design considerations were made: a) The stress limits for flange bolting is as follows: Material: ASTM A449 (equal to or exceeding) Yield Strength: 92,000 psi min. (less than 1 in.); 81,000 psi min. (1 in. and larger) Workin
42、g Stress: 30,000 psi b) Coefficient of friction between mounting flanges is assumed to be 0.3. c) Bolts are in tension only; no allowance is made for stresses induced by bolt tightening. MSS STANDARD PRACTICE SP-1013 FIGURE 1 Actuator Flange TABLE 1 FA Mounting Flange Torque Values and Flange Dimens
43、ions (See Figure 1) Flange Type/Size Recommended Maximum Torque* D1 Minimum D2 Nominal D3 H1 Maximum Bolt Size No. of Bolts lbf-ft Nm in. mm in. mm in. mm in. mm FA05 95 129 2.56 65.0 1.38 35 2.00 50.8 0.12 3 1/4-20 4 FA07 215 292 3.54 89.9 2.17 55 2.75 69.9 0.12 3 5/16-18 4 FA08 245 332 3.54 89.9 2
44、.17 55 3.15 80.0 0.12 3 5/16-18 4 FA10 465 630 4.92 125.0 2.76 70 4.00 101.6 0.12 3 3/8-16 4 FA11 490 664 5.00 127.0 2.76 70 4.24 107.7 0.12 3 3/8-16 4 FA12 1,050 1,424 5.91 150.1 3.35 85 4.95 125.7 0.12 3 1/2-13 4 FA14 1,850 2,508 6.89 175.0 3.94 100 5.50 139.7 0.16 4 5/8-11 4 FA16 3,250 4,406 8.25
45、 209.6 5.12 130 6.50 165.1 0.20 5 3/4-10 4 FA19 5,075 6,881 8.75 222.3 6.10 155 7.50 190.5 0.20 5 5/8-11 8 FA25 6,775 9,186 11.38 289.1 7.87 200 10.00254.0 0.20 5 5/8-11 8 FA30 11,775 15,965 13.50 342.9 9.06 230 11.75298.5 0.20 5 3/4-10 8 FA35 25,400 34,438 16.00 406.4 10.24 260 14.00355.6 0.20 5 1-
46、8 8 FA36 40,700 55,182 16.00 406.4 10.24 260 14.00355.6 0.20 5 114-7 8 FA40 46,500 63,046 18.70 475.0 11.81 300 16.00406.4 0.31 8 114-7 8 FA48 82,800 112,262 22.00 558.8 14.57 370 19.00482.6 0.31 8 114-7 12 FA60 172,500 233,879 26.50 673.1 18.50 470 23.75603.3 0.31 8 114-7 20 * See Section 6.2.1 for
47、 “Informational Note”. MSS STANDARD PRACTICE SP-1014 8. ACTUATOR DRIVING COMPONENTS 8.1 Part-turn applications typically couple the actuator to the valve stem (shaft) with keys, or flatted shafts, square shafts, and couplings. With the valve in its fully closed position, the shaft shall be oriented
48、as shown in Figure 2. The normal closing direction is clockwise. FIGURE 2 Shaft Orientation (Valve Top View Valve Closed) 8.2 Refer to Figure 3 for a typical driving and driven component assembly using keyed construction. 8.3 The suggested key dimensions and the maximum permissible shaft diameter (D
49、7) can be found in Table 3. 8.4 Refer to Figure 4 for illustrations of flatted output shafts. 8.5 Flatted shaft dimensions can be found in Table 4. 8.6 Refer to Figure 5 for illustrations of square output shafts. 8.7 Square output shaft dimensions can be found in Table 5. 9. BASIS OF DRIVING COMPONENT SELECTION 9.1 When calculating the stresses on the key, the material strengths used are shown in Table 2. TABLE 2 Key Stress Limits (Ksi) Yield Strength Working StrengthTension Shear Bearing Shear 70 35 30 15 9.2 Key dimensions an
