ISA 75 19 01-2013 Hydrostatic Testing of Control Valves.pdf

1、 AMERICAN NATIONAL STANDARD ANSI/ISA-75.19.01-2013 Hydrostatic Testing of Control Valves Approved 6 August 2013 ANSI/ISA-75.19.01-2013, Hydrostatic Testing of Control Valves ISBN: 978-0-876640-36-4 Copyright 2013 by ISA. All rights reserved. Not for resale. Printed in the United States of America. N

2、o part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the prior written permission of the Publisher. ISA 67 Alexander Drive P. O. Box 12277 Research Triangle Par

3、k, North Carolina 27709- 3 - ANSI/ISA-75.19.01-2013 Preface ANSI/ISA-75.19.01-2007 was revised in 2013 to include the changes in ASME B16.34-2009, Valves-Flanged, Threaded, and Welding End. All pressure-temperature ratings in ASME B16.34 were recalculated using data from the latest edition of the AS

4、ME Boiler and Pressure Vessel Code, Section II, Part D. As a result, new materials have been added, some materials have been shifted to other material groups and pressure-temperature ratings have changed within some material groups. The 2013 edition of ANSI/ISA-75.19.01 uses metric units as the prim

5、ary reference units while maintaining U.S. customary units in reference tables. This follows the lead of ASME B16.34-2009 that states their goal is to delete the U.S. customary units in future revisions. This preface, as well as all footnotes and annexes, is included for informational purposes and i

6、s not part of ANSI/ISA-75.19.01-2013. This standard has been prepared as part of the service of ISA toward a goal of uniformity in the field of instrumentation. To be of real value, this document should not be static, but should be subject to periodic review. Toward this end, the Society welcomes al

7、l comments and criticisms, and asks that they be addressed to the Secretary, Standards and Practices Board; ISA; 67 Alexander Drive; P. O. Box 12277; Research Triangle Park, NC 27709; Telephone (919) 990-9227; Fax: (919) 549-8288; e-mail: standardsisa.org. The ISA Standards and Practices Department

8、is aware of the growing need for attention to the metric system of units in general and the International System of Units (SI) in particular, in the preparation of instrumentation standards, recommended practices, or technical reports. The Department is further aware of the benefits to U.S.A. users

9、of ISA standards of incorporating suitable references to the SI (and the metric system) in their business and professional dealings with other countries. Toward this end, this Department will endeavor to introduce SI-acceptable metric units in all new and revised standards to the greatest extent pos

10、sible. The Metric Practice Guide, which has been published by the Institute of Electrical and Electronics Engineers as ANSI/IEEE Std. 268-1992, and future revisions, will be the reference guide for definitions, symbols, abbreviations, and conversion factors. Certain metric units that are part of the

11、 SI system are in common accepted pressure measurement that is convertible to kilopascals by multiplying by 100. It is the policy of ISA to encourage and welcome the participation of all concerned individuals and interests in the development of ISA standards. Participation in the ISA standards-makin

12、g process by an individual in no way constitutes endorsement by the employer of that individual, of ISA, or of any of the standards that ISA develops. CAUTION ISA DOES NOT TAKE ANY POSITION WITH RESPECT TO THE EXISTENCE OR VALIDITY OF ANY PATENT RIGHTS ASSERTED IN CONNECTION WITH THIS DOCUMENT, AND

13、ISA DISCLAIMS LIABILITY FOR THE INFRINGEMENT OF ANY PATENT RESULTING FROM THE USE OF THIS DOCUMENT. USERS ARE ADVISED THAT DETERMINATION OF THE VALIDITY OF ANY PATENT RIGHTS, AND THE RISK OF INFRINGEMENT OF SUCH RIGHTS, IS ENTIRELY THEIR OWN RESPONSIBILITY. PURSUANT TO ISAS PATENT POLICY, ONE OR MOR

14、E PATENT HOLDERS OR PATENT APPLICANTS MAY HAVE DISCLOSED PATENTS THAT COULD BE INFRINGED BY USE OF THIS DOCUMENT AND EXECUTED A LETTER OF ASSURANCE COMMITTING TO THE GRANTING OF A LICENSE ON A WORLDWIDE, NON-DISCRIMINATORY BASIS, WITH A FAIR AND REASONABLE ROYALTY RATE AND FAIR AND REASONABLE TERMS

15、AND CONDITIONS. FOR MORE INFORMATION ON SUCH DISCLOSURES AND LETTERS OF ASSURANCE, CONTACT ISA OR VISIT WWW.ISA.ORG/STANDARDSPATENTS. ANSI/ISA-75.19.01-2013 - 4 - OTHER PATENTS OR PATENT CLAIMS MAY EXIST FOR WHICH A DISCLOSURE OR LETTER OF ASSURANCE HAS NOT BEEN RECEIVED. ISA IS NOT RESPONSIBLE FOR

16、IDENTIFYING PATENTS OR PATENT APPLICATIONS FOR WHICH A LICENSE MAY BE REQUIRED, FOR CONDUCTING INQUIRIES INTO THE LEGAL VALIDITY OR SCOPE OF PATENTS, OR DETERMINING WHETHER ANY LICENSING TERMS OR CONDITIONS PROVIDED IN CONNECTION WITH SUBMISSION OF A LETTER OF ASSURANCE, IF ANY, OR IN ANY LICENSING

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18、VE HAZARDOUS MATERIALS, OPERATIONS OR EQUIPMENT. THE DOCUMENT CANNOT ANTICIPATE ALL POSSIBLE APPLICATIONS OR ADDRESS ALL POSSIBLE SAFETY ISSUES ASSOCIATED WITH USE IN HAZARDOUS CONDITIONS. THE USER OF THIS DOCUMENT MUST EXERCISE SOUND PROFESSIONAL JUDGMENT CONCERNING ITS USE AND APPLICABILITY UNDER

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20、ITY ISSUES. THE COMMITTEE HAS NOT YET ADDRESSED THE POTENTIAL ISSUES IN THIS VERSION. The following people served as members of ISA Subcommittee ISA75.19: NAME COMPANY M. Bober, Chairman Copes-Vulcan W. Weidman, Managing Director WCW Consulting G. Borden Consultant R. Duimstra Fisher Controls Intern

21、ational LLC J. McCaskill Expro Group J. Reed Consultant L. Winkel Flowserve J. Young The Dow Chemical Company The following people served as members of ISA Committee ISA75: NAME COMPANY J. Young, Chair The Dow Chemical Company W. Weidman, Managing Director WCW Consulting L. Al-Awami Saudi Aramco H.

22、Baumann HB Services Partners LLC J. Beall Emerson Process Management M. Bober Copes-Vulcan H. Boger GE Oil b) equivalent studs and nuts are used; c) the same torquing procedure is used, or steps are taken to ensure the same pre-test bolt loads result; and d) an air or water leak test at lower than t

23、he hydrostatic shell test pressure is performed to ensure proper gasket installation. 4.3 All cavities pressurized in service shall simultaneously be subjected to the hydrostatic shell test pressure. Moving stem seals such as bellows, diaphragms, stem, and packing, that may be damaged by the hydrost

24、atic shell test pressure, or trim parts that do not affect the pressure boundary, need not be installed during testing. 4.4 Valves with welded-on nipples, flanges, reducers and/or increasers shall be hydrostatically shell tested in accordance with paragraph 4.4 (a) or (d), at the manufacturers optio

25、n, unless paragraph 4.4 (b) or (c) is agreed to by both the valve manufacturer and the purchaser. a) Hydrostatically shell test the valve alone at the appropriate pressure for its class and do not retest after welding on any of the nipples, flanges, reducers, or increasers. b) Hydrostatically shell

26、test the valve alone at the appropriate pressure for its class and retest the valve assembly after welding on any of the nipples, flanges, reducers or increasers with the pressure in accordance with the specification applicable to the nipples, flanges, reducers, or increasers. The purchaser shall pr

27、ovide the design pressure and temperature and the applicable specifications to the valve manufacturer. c) Hydrostatically shell test the valve including all weld-on nipples, flanges, reducers, and increasers with the pressure in accordance with the specification applicable to the nipples, flanges, r

28、educers, and increasers. The valve nameplate and required valve body marking must then indicate the pressure and temperature limit as determined by the nipples, flanges, reducers, and increasers. d) Hydrostatically shell test the valve including all welded-on nipples, flanges, reducers, and increase

29、rs with the pressure in accordance with this standard, provided that the nipples, flanges, reducers, and increasers are designed for that pressure. 4.5 The valve shall not be painted or otherwise coated with materials capable of sealing against leakage before the shell tests are completed, except in

30、ternal linings or coatings included in the design (e.g., nonmetallic butterfly valve body linings) are permitted. Chemical corrosion protection treatments are permitted. If valve parts are to be painted for storage, they shall be hydrostatically shell tested before painting, provided the fully assem

31、bled valve is again tested in accordance with paragraph 4.2 (d). If the presence of purchasers representative is specified for hydrostatic shell tests, painted valves may be retested without removal of the paint, unless otherwise agreed to by the valve manufacturer and purchaser. Assembled valves ha

32、ving bodies and bonnets or cover plates that have been separately tested in accordance with Clauses 5 through 7 prior to having been painted or coated, may be painted or coated prior to final testing in accordance with Clauses 5 through 7. Wrought welded-on nipples, flanges, increasers, and reducers

33、 need not have their protective coating removed for hydrostatic shell testing. 4.6 The valve shall not be seated on the main seat or on the back seat during the hydrostatic shell test. 11 ANSI/ISA-75.19.01-2013 4.7 If a valve is dual pressure rated (inlet rating higher than outlet rating from causes

34、 such as different wall thicknesses, flange rating, or materials), it may be necessary to separate the high pressure portion of the valve from the low pressure portion with a temporary barrier and test each portion at its respective test pressure. 4.8 Pressure retaining parts may be hydrostatically

35、shell tested separately if all of the following conditions are satisfied: a) all the pressure retaining parts in the valve assembly are hydrostatically tested at the pressures in accordance with Clause 7, Test pressures; b) the hydrostatic test is performed in a manner that simulates all loadings, f

36、asteners, and restraints present when the part is tested in a completed valve; c) individual part testing is agreed to by both the manufacturer and the purchaser; and d) the fully assembled valve is pressure tested in accordance with 4.2 (d). 5 Test procedures 5.1 After filling the valve with water,

37、 which may contain a corrosion inhibitor, or with other suitable liquid (provided such liquid has a viscosity not greater than water), and venting all air, each valve shall be pressurized to no less than the pressures given in Tables 5, 6, 7, A.1, A.2 or A.3 except as covered in 7.4. CAUTION IF AIR

38、IS PRESENT IN THE TEST FLUID, THERE ARE HAZARDS INVOLVED AND APPROPRIATE PRECAUTIONS SHOULD BE TAKEN. 5.2 The minimum duration of test pressure before start of inspection shall be as follows: Table 1 Minimum test duration (minutes) Nominal Valve Size Class 600 and Lower Class 900 thru 1500 Class 250

39、0 & Higher 2“ & smaller 1 2 3 2-1/2 “ thru 4“ 2 4 5 5 “ thru 8“ 3 5 8 10“ & larger 5 8 10 For classes not shown, use next higher class. 5.3 The temperature of the test liquid shall not exceed 52C (125F). 6 Acceptance standards 6.1 Any visually detected weeping or leaking through the pressure boundar

40、y walls that are part of the valve body assembly shall be cause for rejection. Leakage through the static seals and gasketed joints is also cause for rejection unless specifically allowed by the design specifications. 6.2 Distortion due to hydrostatic shell testing that impairs satisfactory function

41、al operation of the valve shall be cause for rejection. ANSI/ISA-75.19.01-2013 - 12 - 7 Test pressures 7.1 Hydrostatic shell test pressures for steel and nickel-base alloy and other alloy valves are calculated by multiplying the 38C (100F) working pressures by 1.5 and rounding off to the next higher

42、 bar increment in accordance with ASME B16.341. For other materials within the scope of this standard, but not listed in Tables 2, 3 or 4, and for intermediate and limited classes, the above method shall be used to determine the test pressure. 7.2 Hydrostatic shell test pressures for cast iron valve

43、s shall be in accordance with ASME B16.1. 7.3 Hydrostatic shell test pressures for nodular (ductile) iron valves shall be in accordance with ASME B16.42. 7.4 For other materials within the scope of this standard but not included in Tables 2, 3 or 4 and whose pressure ratings are given in a published

44、 standard or are determined by the manufacturer, the hydrostatic shell test pressures shall be calculated as in 7.1 or 7.5, as applicable. 7.5 The psig equivalents of all test pressures in Tables 5, 6 and 7 are given in Tables A.1, A.2 and A.3 (Annex A) and are calculated by multiplying the 38C (100

45、F) working pressures, in psig, by 1.5 and rounding off to the next higher 25 psig (pounds per square inch gage).1 _ 1 1 bar = 100 kPa = 100 000 Pa = 0,1 MPa = 14.5038 psi. - 13 - ANSI/ISA-75.19.01-2013 Table 2 List of material specifications Group 1 Materials Applicable ASTM Specifications Material

46、Product Form Group No. Nominal Designation Forgings Castings Plates Bars Tubular Spec. No. Grade Spec. No. Grade Spec. No. Grade Spec. No. Grade Spec. No. Grade 1.1 C-Si C-Mn-Si 3 Ni C-Mn-Si-V A 105 A 350 A 350 A 350 LF2 LF3 LF6 Cl.1 A 216 WCB A 515 A 516 A 537 70 70 Cl. 1 A 105 A 350 A 696 A 350 A

47、350 LF2 C LF3 LF6 Cl.1 A 672 A 672 C 70 B 70 1.2 C-Si 2 Ni 3 Ni C-Mn-Si C-Mn-Si-V A 350 LF6 Cl.2 A 352 A 352 A 216 A 352 LC2 LC3 WCC LCC A 203 A 203 B E A 350 LF6 Cl.2 A 106 C 1.3 C C-Si 2 Ni 3 Ni C-Mn-Si C- Mo A 352 A 217 A 352 LCB WC1 LC1 A 515 A 203 A 203 A 516 65 A D 65 A 675 70 A 672 A 672 B 65

48、 C 65 1.4 C C-Si C-Mn-Si A 350 LF1 A 515 A 516 60 60 A 675 A 675 A 350 A 696 60 65 LF1 B A 106 A 672 A 672 B B 60 C 60 1.5 C- Mo A 182 F1 A 204 A 204 A B A 182 F1 A 691 CM-70 1.6 Cr-Mo A 387 A 387 2 Cl.1 2 Cl. 2 A 691 Cr 1.7 C-Mo Cr-Mo Ni-Cr-Mo Ni-Mo Cr A 182 F2 A 217 A 217 WC4 WC5 A 182 F2 A 691 CM

49、-75 ANSI/ISA-75.19.01-2013 - 14 - Table 2 List of material specifications Group 1 Materials (continued) Applicable ASTM Specifications Material Product Form Group No. Nominal Designation Forgings Castings Plates Bars Tubular Spec. No. Grade Spec. No. Grade Spec. No. Grade Spec. No. Grade Spec. No. Grade 1.8 1 Cr- Mo 1 Cr-1/2 Mo-Si 2 Cr-1 Mo A 387 A 387 A 387 12 Cl.2 11 Cl.1 22 Cl.1 A 691 A 691 A 335 A 369 1Cr 2Cr P22 FP22 1.9 1 Cr- Mo-Si 1 Cr- Mo A 182 F11 Cl. 2 A 217 WC6 A 387 11 Cl.2 A 182 A 739 F11 Cl. 2 B11 1.10 2 Cr-1 Mo A