ANSI MSS SP-135-2016

Prévia do material em texto

ANSI/MSS SP-1 35-201 6 
 
 
 
High Pressure 
Knife Gate 
Valves 
 
 
Standard Practice 
Developed and Approved by the 
Manufacturers Standardization Society of the 
Valve and Fittings Industry, Inc. 
1 27 Park Street, NE 
Vienna, Virginia 221 80-4602 
Phone: (703) 281 -661 3 
Fax: (703) 281 -6671 
E-mail: standards@msshq.org 
www.msshq.org 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
i 
This MSS Standard Practice was originally developed under the consensus of the MSS Technical Committee 1 1 4 (Steel 
Valves) and the MSS Coordinating Committee. In 2012, responsibility for this Standard Practice, and the current revision, 
was transferred to the new MSS Technical Committee 409 (Knife Gate Valves); with the MSS Coordinating Committee 
continuing to provide final review and approval. Future development and maintenance of this Standard Practice will be 
conducted by the new MSS Technical Committee 409. In addition, this Standard Practice was approved by an ANSI/MSS 
Consensus Committee and ANSI as an American National Standard. The content of this Standard Practice is the resulting 
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 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, 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 responsibility of the certifier or maker of the statement. 
 
“Unless indicated otherwise within this MSS Standard Practice, other standards documents referenced to herein are 
identified by the date of issue that was applicable to this Standard Practice at the date of approval of this MSS 
Standard Practice (see Annex A). This Standard Practice shall remain silent on the validity of those other standards 
of prior or subsequent dates of issue even though applicable provisions may not have changed.” 
 
By publication 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 risk 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”. 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 used independently of the other. Combining or converting values between the two systems may result in non-conformance 
with this Standard Practice. 
 
This Standard Practice has been substantially revised from the previous 2010 edition. It is suggested that if the 
user is interested in knowing what changes have been made, that 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 unless otherwise specified. 
 
Excerpts of this Standard Practice may be quoted with permission. Credit lines should read ‘Extracted from ANSI/MSS SP-
135-2016 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 written 
permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc. All rights reserved. 
 
MSS is a registered trademark of Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 
 
Originally Approved: September 2005 
Originally Published: May 2006 
Current Edition Approved by MSS: February/April 2015 (original)/July 201 5 (revision w/ Class 600) 
Current Edition Approved by ANSI: April 2016 
Current ANSI/MSS Edition Published: June 2016 
 
Copyright ©, 2016 by 
Manufacturers Standardization Society 
of the 
Valve and Fittings Industry, Inc. 
Printed in U.S.A. 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
ii 
FOREWORD 
 
This MSS Standard Practice, SP-1 35, is widely used in multiple valve and piping industries and is aligned 
with the Class-rated design, testing and material requirements of ASME B16.34, and the Class rated 
pressure, temperature, and dimensional requirements of ASME B16.5 and B16.47. MSS SP-1 35 is the 
principal ASME Class rated knife gate valve standard and it is widely accepted as the principal Knife Gate 
Valve standard for industry users that include: paper, chemical, petro-chemical, hydroelectric power, and 
fossil fuel power valve and fittings systems. 
 
MSS Standard Practice SP-1 35 was originally published in 2006 as SP-1 35-2006, High Pressure Steel Knife 
Gate Valves for the purpose of providing an industry need for a knife gate valve standard that involved high 
pressure and a Class rated design. 
 
The revised 2010 edition of SP-1 35 revised the title slightly and expanded the valve NPS (DN) coverage; 
including two (2) sets of Face-to-Face dimensions (Short and Long Pattern). The original one (1 ) set of 
Face-to-Face dimensions included in the introductory 2006 edition of SP-1 35 was retained and rearranged 
in the tables of the revised 2010 edition of SP-1 35 as follows: 
CLASS 150: CLASS 300: 
NPS 24 (DN > 600) Short Pattern 
 
This 2016 edition of MSS SP-1 35, in addition to various editorial and formatting updates, includes: (1 ) 
revisions to tables and numbering; (2) an additional Section 5.2.2 marking option; (3) inclusion of NPS 2 – 
36 (DN 50 – 900) Class 600 valve dimensions in revised scope, body text, and new Tables 3 /3M; (4) 
editorial clarification of several table headings and notes; and (5) updating of the organizations and 
references in Annex A. This edition was also approved by an ANSI/MSS Consensus Committee and ANSI 
as an American National Standard. 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
iii 
 
TABLE OF CONTENTS 
 
 
SECTION PAGE 
 
1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 
2 STANDARD UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 
3 PRESSURE–TEMPERATURE RATINGS . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 
4 SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 
5 MARKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 
6 MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 
7 DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 
8 WELDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 
9 TOLERANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 
1 0 PRODUCTION TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 
1 1 SHIPPING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 
 
 
TABLE 
 
1 ASME Class 1 50 Valve Dimensions, Inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 
1M ASME Class 1 50 Valve Dimensions, Millimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 
2 ASME Class 300 Valve Dimensions, Inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 
2M ASME Class 300 Valve Dimensions, Millimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 
3 ASME Class 600 Valve Dimensions, Inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
3M ASME Class 600 Valve Dimensions, Millimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
 
ANNEX 
 
A Referenced Standards and Applicable Dates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
1 
HIGH PRESSURE KNIFE GATE VALVES 
 
1 . SCOPE 
1 .1 This Standard Practice covers the construction requirements for lug- and wafer-type knife gate valves 
made from ASME Code materials and meeting the applicable gate valve requirements of ASME B16.34. 
INFORMATIONAL NOTE : ASME B1 6.34 Special Class and Limited Class are outside the 
scope of this Standard Practice. 
1 .2 This Standard Practice covers flanged body designs compatible with ASME B1 6.5 flanges for 
NPS 2 (DN 50) through NPS 24 (DN 600) and ASME B1 6.47 Series A flanges for NPS 26 (DN 650) 
through NPS 48 (DN 1 200). 
1 .3 As an alternative to Section 1 .1 , this Standard Practice also covers valves that do not meet the body 
wall thickness of ASME B16.34 but shall be qualified by a proof test. The Class 1 50, 300, and 600 
dimensional, material, and other requirements of this Standard Practice, shall apply to these valves. 
2. STANDARD UNITS 
The values stated in either U.S. customary units or SI (metric) units are to be regarded separately as the 
“standard”. Within the text, the SI (metric) units are shown in parenthesis. The values stated in each 
system are not exact equivalents; therefore, each system must be used independently of the other. 
Combining values from the two systems may result in non-conformance with this Standard Practice. 
3 . PRESSURE–TEMPERATURE RATINGS 
3.1 This Standard Practice is limited to valves with Class 1 50, Class 300, and Class 600 pressure-
temperature ratings, as described in ASME B16.34 and shall meet all requirements of ASME B16.34, 
Section 2, for Standard Class pressure-temperature ratings applicable for the material of valve 
construction. See Section 1 .1 of this Standard Practice. 
3 .2 Class 1 50, Class 300, or Class 600 valves not conforming to the ASME B16.34 wall thickness 
requirements may be pressure-temperature rated by the manufacturer in accordance with proof pressure 
test data requirements of UG-101 of ASME Boiler and Pressure Vessel Code, Section VIII. 
The manufacturer’s rating shall not exceed the applicable Standard Class 150, Standard Class 300, or Standard 
Class 600 flanged valve rating of ASME B16.34 for the applicable body material. 
3 .3 The body material and design shall establish the pressure-temperature rating of the valve. If the 
material for the bonnet, or other pressure boundary item, is different than the body material, the design 
shall be reconciled to insure that the body pressure-temperature rating is maintained at all temperatures. 
4. SIZE 
The valve sizes in Tables 1 , 2, and 3 (NPS), and Tables 1M, 2M, and 3M (DN), are the nominal sizes of 
the end connections. 
NOTE: The Nominal Diameter (DN) size used in international and other standards is related to NPS in this 
Standard Practice as follows: 
DN = 25 x NPS (For NPS > 4) 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
2 
5. MARKING 
5.1 Valves shall be marked in accordance with ASME B16.34, MSS SP-25, and with the following 
requirements and modifications: 
a) Manufacturer’s name or trademark/logo. 
b) The body material of construction or code, when more than one material or grade of material is used 
each shall be identified. When lining in contact with the fluid is used, it shall be listed and identified 
as “lining”. It is not required to repeat the material designation on fabricated bodies. 
c) For valves manufactured for closure in one direction only, the valve shall be marked showing the “seat 
side” (downstream side) of the valve in such a manner that the markings can be seen with the valve 
installed in the pipeline. The user shall be responsible for correct directional installation. Bi-directional 
closure valves need no closure direction marking. 
d) A tag is to be attached to the valves for installation purposes indicating: 
1 ) Care to be taken in valve installation with respect to direction of closure. 
2) Care to be taken when installing studs or bolts in the tapped holes of the flange in the area of 
the chest to prevent chest damage. The chest is the body area between the packing chamber 
and the flanges. 
INFORMATIONALNOTICE: Proper bolting choice is emphasized during field installation to 
prevent the bolts from rotating and advancing against the body wall. 
3 ) Packing nuts may require adjustment to obtain a tight seal. 
e) The stem material need not be listed. 
5.2 Compliance 
5 .2.1 Valves complying with all applicable requirements of Standard Class 1 50 or 300 of ASME B16.34 
shall be marked “B16.34” on the nameplate. 
5 .2.2 Valves not meeting wall thickness requirements of ASME B16.34 may be marked “SP-1 35” or 
“SP135” on the nameplate. 
6. MATERIALS 
6.1 The valve body, bonnet and body joint bolting shall be constructed of materials as referenced in 
Table 1 of ASME B16.34. All other provisions of ASME B16.34, Paragraph 5 shall apply. 
6.2 Internal part materials shall have a corrosion resistance equivalent to or better than the valve body. 
7. DESIGN 
7.1 The design of all valves shall prevent permanent distortion of the body or seats when tested as 
specified in Section 1 0. 
Some permanent distortion of parts is acceptable during the shell test of Section 1 0.1 provided it can be 
demonstrated that there will be no further deformation upon subsequent pressure loadings. 
7.2 Threaded holes used for flange bolting shall provide for full thread engagement to a depth of not less 
than the nominal bolt diameter. Unless otherwise specified by the customer, threaded holes for flange 
bolting shall be tapped in accordance with ASME B1 .1 Coarse Thread Series Class 2B for bolts 1 inch and 
smaller, and shall be tapped to the 8-Thread Series Class 2B for bolts 1 1
8 inches or larger. 
7.3 The valve port minimum flow diameter shall be in accordance with Appendix A of ASME B16.34, for 
the applicable pressure class and valve size. 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
3 
7.4 Because of variations in basic valve design, differential pressure and valve accessibility, it is not 
possible to standardize the conditions under which a manually operated valve requires mechanical 
assistance. Consideration should be given to the use of mechanical assistance on all valves where the 
differential pressure, when operating, approaches the valve’s rated working pressure. Consideration 
should be given to the use of mechanical assistance on all NPS 1 2 (DN 300) and larger valves, regardless 
of differential pressure. 
7.5 Body Wall Thickness 
7.5.1 All valve bodies shall have a minimum wall thickness as determined from Table 3A or 3B of 
ASME B16.34 or equations in Appendix VI of ASME B16.34, for the appropriate Standard Class rating 
marked on the identification plate. Documentation records of design analysis shall be available at the 
manufacturer’s facility for inspection by purchaser. 
7.5.2 As an alternative to Section 7.5.1 , valve assemblies with valve bodies not meeting ASME B16.34 
wall thickness shall have the maximum allowable pressure determined using a vessel proof test in 
accordance with UG-101 of ASME Boiler and Pressure Vessel Code, Section VIII (see Section 3 .2 of 
this Standard Practice). 
Documentation records of successful proof test data shall be available at the manufacturer’s facility for 
inspection by the purchaser. 
7.6 Bonnets, when required, shall be of the bolted design. 
7.7 Valve inch dimensions shall be in accordance with Tables 1 , 2, and 3 . Valve SI (metric) dimensions 
shall be in accordance with Tables 1M, 2M, and 3M. A set of dimensions for Short Pattern and Long 
Pattern valves are presented in these tables. Other face-to-face dimensions may be used by agreement 
between manufacturer and purchaser. 
7.8 The standard flange facing for valves constructed under this Standard Practice shall be 0.06 in. 
(1 .5 mm) raised face (RF) unless otherwise specified in the purchase order. 
8. WELDING 
All body pressure boundary welds shall be in accordance with the ASME Boiler and Pressure Vessel Code, 
Section IX and shall meet the requirements of Paragraph 2.1 .6 of ASME B16.34. 
9. TOLERANCES 
The following tolerances shall be followed: 
Face-to-Face: 
 NPS 1 0 (DN 250) and smaller 
 +0.06 in. (+1 .5 mm) 
 NPS 1 2 (DN 300) and larger 
 +0.1 2 in. (+3.0 mm) 
Bolt Circle Diameter Drilling: 
 +0.06 in. (+1 .5 mm) 
Center-to-Center of Adjacent Bolt Holes: 
 +0.03 in. (+0.8 mm) 
INFORMATIONAL NOTICE: The SI (metric) conversions utilized in this section conform to the values specified 
in the ASME standards that are identified within the scope of MSS SP-135. 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
4 
1 0. PRODUCTION TEST 
1 0.1 Shell Test Each valve shall be hydrostatically pressure tested at 1 .5 x 1 00 °F (38 °C) pressure rating 
as per ASME B16.34, Paragraph 7.1 . 
1 0.2 Seat Test Each valve shall be seat tested in accordance with ASME B16.34, Paragraph 7.2. 
Maximum permissible leakage for metal seated valves shall be 40 ml/min/NPS (1 .6 ml/min/DN). Resilient 
seated valves shall have no visible leakage for the duration of the seat test. 
1 1 . SHIPPING INFORMATION 
1 1 .1 Valve packing nuts may be loosened prior to shipment to extend packing life. These nuts may have 
to be adjusted after installation. 
1 1 .2 Unless indicated otherwise, valves shall be shipped with covers to protect the raised faces of the 
flanges. 
 
 
TABLE 1 : ASME Class 150 Valve Dimensions, Inches 
Valve Size 
(NPS) 
Flanges 
 
Short Pattern 
Face-to-Face 
 
Long Pattern 
Face-to-Face 
Bolt Circle 
Diameter 
See Notes (a) (b) 
Bolting 
 
Quantity 
See Notes (a) (b) 
Tap Size 
See Note (c) 
Clearance Hole 
Diameter 
See Notes (a) (b) 
2 
3 
4 
6 
4.75 
6.00 
7.50 
9.50 
4 
4 
8 
8 
5/8-1 1 
5/8-1 1 
5/8-1 1 
3/4-10 
0.75 
0.75 
0.75 
0.88 
2.00 
2.00 
2.00 
2.25 
2.75 
4.00 
4.1 2 
2.50 
8 
1 0 
1 2 
1 1 .75 
1 4.25 
1 7.00 
8 
1 2 
1 2 
3/4-10 
7/8-9 
7/8-9 
0.88 
1 .00 
1 .00 
2.75 
2.75 
3 .00 
2.88 
3 .1 2 
3 .25 
1 4 
1 6 
1 8 
1 8.75 
21 .25 
22.75 
1 2 
1 6 
1 6 
1 -8 
1 -8 
1 1⁄8-8 
1 .1 2 
1 .1 2 
1 .25 
3 .00 
3 .50 
3 .50 
3 .62 
3 .75 
4.1 2 
20 
24 
26 
25.00 
29.50 
31 .75 
20 
20 
24 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
4.50 
4.50 
6.75 
4.50 
5.00 
7.09 
28 
30 
32 
36 
34.00 
36.00 
38.50 
42.75 
28 
28 
28 
32 
1 1⁄4-8 
1 1⁄4-8 
1 1⁄2-8 
1 1⁄2-8 
1 .38 
1 .38 
1 .63 
1 .63 
7.1 2 
7.38 
8.1 2 
8.88 
7.1 2 
8.25 
8.62 
9.84 
42 
48 
49.50 
56.00 
36 
44 
1 1⁄2-8 
1 1⁄2-8 
1 .63 
1 .63 
9.75 
1 1 .50 
1 2.00 
1 6.50 
NOTES: 
(a) Values listed in this column for valve sizes NPS 24 and smaller are in conformance with ASME B16.5, Class 1 50. 
(b) Values listed in this column for valve sizes NPS 26 and larger are in conformance with ASME B16.47, Class 1 50, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
5 
 
TABLE 1M: ASME Class 150 Valve Dimensions, Millimeters 
 
Valve Size 
Flanges 
Short Pattern 
Face-to-Face 
Long Pattern 
Face-to-Face 
Bolt Circle 
Diameter 
See Notes (a) (b) 
Bolting 
Quantity 
See Notes (a) (b) 
Tap Size 
(non-metric) 
(inches) 
See Note (c) 
Clearance Hole 
Diameter 
(non-metric) 
(inches) 
See Notes (a) (b) 
NPS DN 
2 
3 
4 
6 
50 
80 
1 00 
1 50 
1 20.7 
1 52.4 
1 90.5 
241 .3 
4 
4 
8 
8 
5/8-1 1 
5/8-1 1 
5/8-1 1 
3/4-10 
0.75 
0.75 
0.75 
0.88 
50.8 
50.8 
50.8 
57.2 
 69.9 
1 01 .6 
1 04.6 
63 .5 
81 0 
1 2 
200 
250 
300 
298.5 
362.0 
431 .8 
8 
1 2 
1 2 
3/4-10 
7/8-9 
7/8-9 
0.88 
1 .00 
1 .00 
69.9 
69.9 
76.2 
73 .2 
79.2 
82.6 
1 4 
1 6 
1 8 
350 
400 
450 
476.3 
539.8 
577.9 
1 2 
1 6 
1 6 
1 -8 
1 -8 
1 1⁄8-8 
1 .1 2 
1 .1 2 
1 .25 
76.2 
88.9 
88.9 
91 .9 
95.3 
1 04.6 
20 
24 
26 
500 
600 
650 
635.0 
749.3 
806.4 
20 
20 
24 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
1 1 4.3 
1 1 4.3 
1 71 .5 
1 1 4.3 
1 27.0 
1 80.1 
28 
30 
32 
36 
700 
750 
800 
900 
863.6 
914.4 
977.9 
1 085.8 
28 
28 
28 
32 
1 1⁄4-8 
1 1⁄4-8 
1 1⁄2-8 
1 1⁄2-8 
1 .38 
1 .38 
1 .63 
1 .63 
1 80.8 
1 87.5 
206.2 
225.6 
1 80.8 
209.6 
21 8.9 
249.9 
42 
48 
1 050 
1 200 
1 257.3 
1 422.4 
36 
44 
1 1⁄2-8 
1 1⁄2-8 
1 .63 
1 .63 
247.7 
292.1 
304.8 
41 9.1 
NOTES: 
(a) Values listed in this column for valve sizes DN 600 and smaller are in conformance with ASME B16.5, Class 1 50. 
(b) Values listed in this column for valve sizes DN 650 and larger are in conformance with ASME B16.47, Class 1 50, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
 
 
 
 
 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
6 
 
TABLE 2: ASME Class 300 Valve Dimensions, Inches 
Valve Size 
(NPS) 
Flanges 
Short Pattern 
Face-to-Face 
Long Pattern 
Face-to-Face 
Bolt Circle 
Diameter 
See Notes (a) (b) 
Bolting 
Quantity 
See Notes (a) (b) 
Tap Size 
See Note (c) 
Clearance Hole 
Diameter 
See Notes (a) (b) 
2 
3 
4 
6 
5.00 
6.62 
7.88 
1 0.62 
8 
8 
8 
1 2 
5/8-1 1 
3/4-10 
3/4-10 
3/4-10 
0.75 
0.88 
0.88 
0.88 
2.75 
2.75 
2.75 
3 .1 5 
2.75 
4.00 
4.1 2 
4.1 2 
8 
1 0 
1 2 
1 3 .00 
1 5.25 
1 7.75 
1 2 
1 6 
1 6 
7/8-9 
1 -8 
1 1⁄8-8 
1 .00 
1 .1 2 
1 .25 
3 .50 
4.68 
5.00 
4.63 
5.38 
5.63 
1 4 
1 6 
1 8 
20.25 
22.50 
24.75 
20 
20 
24 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
5.50 
5.50 
6.25 
6.25 
6.63 
7.00 
20 
24 
26 
27.00 
32.00 
34.50 
24 
24 
28 
1 1⁄4-8 
1 1⁄2-8 
1 5⁄8-8 
1 .38 
1 .63 
1 .75 
7.44 
8.50 
8.50 
7.44 
8.50 
8.50 
28 
30 
32 
36 
37.00 
39.25 
41 .50 
46.00 
28 
28 
28 
32 
1 5⁄8-8 
1 3⁄4-8 
1 7⁄8-8 
2-8 
1 .75 
1 .88 
2.00 
2.1 2 
1 0.00 
1 0.50 
1 1 .50 
1 2.00 
1 0.00 
1 0.50 
1 1 .50 
1 2.00 
42 
48 
47.50 
54.00 
32 
32 
1 5⁄8-8 
1 7⁄8-8 
1 .75 
2.00 
1 2.00 
1 2.00 
1 4.75 
1 6.75 
NOTES: 
(a) Values listed in this column for valve sizes NPS 24 and smaller are in conformance with ASME B16.5, Class 300. 
(b) Values listed in this column for valve sizes NPS 26 and larger are in conformance with ASME B16.47, Class 300, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
 
 
 
 
 
 
 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
7 
 
TABLE 2M: ASME Class 300 Valve Dimensions, Millimeters 
Valve Size 
Flanges 
Short Pattern 
Face-to-Face 
Long Pattern 
Face-to-Face 
Bolt Circle 
Diameter 
See Notes (a) (b) 
Bolting 
Quantity 
See Notes (a) (b) 
Tap Size 
(non-metric) 
(inches) 
See Note (c) 
Clearance Hole
Diameter 
(non-metric) 
(inches) 
See Notes (a) (b) 
NPS DN 
2 
3 
4 
6 
50 
80 
1 00 
1 50 
1 27.0 
1 68.3 
200.0 
269.9 
8 
8 
8 
1 2 
5/8-1 1 
3/4-10 
3/4-10 
3/4-10 
0.75 
0.88 
0.88 
0.88 
69.9 
69.9 
69.9 
80.0 
 69.9 
1 01 .6 
1 04.6 
1 04.6 
8 
1 0 
1 2 
200 
250 
300 
330.2 
387.4 
450.8 
1 2 
1 6 
1 6 
7/8-9 
1 -8 
1 1⁄8-8 
1 .00 
1 .1 2 
1 .25 
88.9 
1 1 8.9 
1 27.0 
1 1 7.6 
1 36.7 
1 43.0 
1 4 
1 6 
1 8 
350 
400 
450 
514.4 
571 .5 
628.6 
20 
20 
24 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
1 39.7 
1 39.7 
1 58.9 
1 58.8 
1 68.4 
1 77.8 
20 
24 
26 
500 
600 
650 
685.8 
81 2.8 
876.3 
24 
24 
28 
1 1⁄4-8 
1 1⁄2-8 
1 5⁄8-8 
1 .38 
1 .63 
1 .75 
1 89.0 
21 5.9 
21 5.9 
1 89.0 
21 5.9 
21 5.9 
28 
30 
32 
36 
700 
750 
800 
900 
939.8 
997.0 
1 054.1 
1 1 68.4 
28 
28 
28 
32 
1 5⁄8-8 
1 3⁄4-8 
1 7⁄8-8 
2-8 
1 .75 
1 .88 
2.00 
2.1 2 
254.0 
266.7 
292.1 
304.8 
254.0 
266.7 
292.1 
304.8 
42 
48 
1 050 
1 200 
1 206.5 
1 371 .6 
32 
32 
1 5⁄8-8 
1 7⁄8-8 
1 .75 
2.00 
304.8 
304.8 
374.7 
424.5 
NOTES: 
(a) Values listed in this column for valve sizes DN 600 and smaller are in conformance with ASME B16.5, Class 300. 
(b) Values listed in this column for valve sizes DN 650 and larger are in conformance with ASME B16.47, Class 300, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
 
 
 
 
 
 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
8 
 
TABLE 3: ASME Class 600 Valve Dimensions, Inches 
Valve Size 
(NPS) 
Flanges 
Face-to-Face 
Bolt Circle Diameter 
See Notes (a) (b) 
Bolting 
Quantity 
See Notes (a) (b) 
Tap Size 
See Note (c) 
Clearance Hole 
Diameter 
See Notes (a) (b) 
2 
3 
4 
6 
5.00 
6.62 
8.50 
1 1 .50 
8 
8 
8 
1 2 
5/8-1 1 
3/4-10 
7/8-9 
1 -8 
0.75 
0.88 
1 .00 
1 .1 3 
3 .25 
3 .50 
4.00 
5.00 
8 
1 0 
1 2 
1 3 .75 
1 7.00 
1 9.25 
1 2 
1 6 
20 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
6.00 
6.75 
7.50 
1 4 
1 6 
1 8 
20.75 
23 .75 
25.75 
20 
20 
20 
1 3⁄8-8 
1 1⁄2-8 
1 5⁄8-8 
1 .50 
1 .63 
1 .75 
8.00 
8.50 
9.25 
20 
24 
26 
28.50 
33 .00 
36.00 
24 
24 
28 
1 5⁄8-8 
1 7⁄8-8 
1 7⁄8-8 
1 .75 
2.00 
2.00 
1 0.25 
1 2.00 
1 3 .00 
28 
30 
32 
36 
38.00 
40.25 
42.50 
47.00 
28 
28 
28 
28 
2-8 
2-8 
21⁄4-8 
21⁄2-8 
2.1 3 
2.1 3 
2.38 
2.63 
1 4.00 
1 5.00 
1 5.25 
1 7.50 
NOTES: 
(a) Values listed in this column for valve sizes NPS 24 and smaller are in conformance with ASME B16.5, Class 600. 
(b) Values listed in this column for valve sizes NPS 26 and larger are in conformance with ASME B16.47, Class 600, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
 
 
 
 
 
 
 
 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
9 
 
TABLE 3M: ASME Class 600 Valve Dimensions, Millimeters 
Valve Size 
Flanges 
Face-to-Face Bolt Circle 
Diameter 
See Notes (a) (b) 
Bolting 
Quantity 
See Notes (a) (b) 
Tap Size 
(non-metric) 
(inches) 
See Note (c) 
Clearance Hole 
Diameter 
(non-metric) 
(inches) 
See Notes (a) (b) 
NPS DN 
2 
3 
4 
6 
50 
80 
1 00 
1 50 
1 27.0 
1 68.3 
21 5.9 
292.1 
8 
8 
8 
1 2 
5/8-1 1 
3/4-10 
7/8-9 
1 -8 
0.75 
0.88 
1 .00 
1 .1 3 
 82.6 
 88.9 
1 01 .6 
1 27.0 
8 
1 0 
1 2 
200 
250 
300 
349.3 
431 .8 
489.0 
1 2 
1 6 
20 
1 1⁄8-8 
1 1⁄4-8 
1 1⁄4-8 
1 .25 
1 .38 
1 .38 
1 52.4 
1 71 .5 
1 90.5 
1 4 
1 6 
1 8 
350 
400 
450 
527.1 
603.3 
654.1 
20 
20 
20 
1 3⁄8-8 
1 1⁄2-8 
1 5⁄8-8 
1 .50 
1 .63 
1 .75 
203.2 
21 5.9 
235.0 
20 
24 
26 
500 
600 
650 
723.9 
838.2 
914.4 
24 
24 
28 
1 5⁄8-8 
1 7⁄8-8 
1 7⁄8-8 
1 .75 
2.00 
2.00 
260.4 
304.8 
330.2 
28 
30 
32 
36 
700 
750 
800 
900 
965.2 
1 022.4 
1 079.51 1 93 .8 
28 
28 
28 
28 
2-8 
2-8 
21⁄4-8 
21⁄2-8 
2.1 3 
2.1 3 
2.38 
2.63 
355.6 
381 .0 
387.4 
444.5 
NOTES: 
(a) Values listed in this column for valve sizes DN 600 and smaller are in conformance with ASME B16.5, Class 600. 
(b) Values listed in this column for valve sizes DN 650 and larger are in conformance with ASME B16.47, Class 600, Series A. 
(c) UNC thread series may be used for bolting greater than 1 inch if agreed upon between the purchaser and manufacturer. 
 
 
 
 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
MSS S TANDARD PRACT ICE S P - 1 3 5
 
1 0 
 
ANNEX A 
Referenced Standards and Applicable Dates 
 
This Annex is an integral part of this Standard Practice and is placed after the main text for convenience. 
 
 
Standard Name Description 
 
ASME; ANSI/ASME 
B1 .1 -2003 (R2008) Unified Inch Screw Threads (UN and UNR Thread Form) 
B16.5-2013 Pipe Flanges and Flanged Fittings: NPS 1 /2 through NPS 24 Metric/Inch 
Standard 
B16.34-2013 Valves Flanged, Threaded and Welding End 
B16.47-201 1 Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch 
Standard 
BPVC-VIII, Div. 1 -2015 Boiler and Pressure Vessel Code, Section VIII, Division 1 : Rules for 
Construction of Pressure Vessels 
BPVC-IX-2015 Boiler and Pressure Vessel Code, Section IX: Welding and Brazing 
Qualifications 
 
MSS; ANSI/MSS 
SP-25-2013 Standard Marking System for Valves, Fittings, Flanges, and Unions 
 
 
Publications of the following organizations appear in the above list: 
 
ANSI American National Standards Institute, Inc. 
25 West 43 rd Street, Fourth Floor 
 New York, NY 1 0036-7406 
 
ASME American Society of Mechanical Engineers 
 Two Park Avenue 
 New York, NY 1 0016-5990 
 
MSS Manufacturers Standardization Society of the Valve and Fittings Industry 
 1 27 Park Street, NE 
 Vienna, VA 22180-4602 
 
Manufacturers Standardization Society of the Valve and Fittings Industry.
 
Purchase or View a Full Listing of MSS Standards at: 
http://msshq.org/Store/PriceList.cfm 
MSS Standard Practices (SPs) related to or referenced in this publication: 
ANSI/MSS SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions
ANSI/MSS SP-96 Guidelines on Terminology for Valves and Fittings
––––––––––– 
American National Standards Published by MSS, an ANSI-accredited Standards Developer:
ANSI/MSS SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions
ANSI/MSS SP-44 Steel Pipeline Flanges (including 201 1 Errata Sheet)
ANSI/MSS SP-55 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components 
– Visual Method for Evaluation of Surface Irregularities
ANSI/MSS SP-58 Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and 
Installation
ANSI/MSS SP-96 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000
ANSI/MSS SP-114 Guidelines on Terminology for Valves and Fittings
ANSI/MSS SP-134 Valves for Cryogenic Service, including Requirements for Body/Bonnet Extensions
ANSI/MSS SP-138 Quality Standard Practice for Oxygen Cleaning of Valves and Fittings
ANSI/MSS SP-135 High Pressure Knife Gate Valves 
ANSI/MSS SP-144 Pressure Seal Bonnet Valves 
––––––––––– 
Do not violate copyright laws 
All Standard Practices are officially available only from MSS and through our authorized distributors: 
About MSS 
The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association 
organized for development and improvement of industry, national and international codes and standards for Valves, 
Valve Actuators, Valve Modifications, Pipe Fittings, Flanges, Pipe Hangers and Supports, and Associated Seals. Since 
its establishment in 1 924, MSS has been dedicated to developing standards for national and global applications, in 
cooperation with other standardizing bodies and regulatory authorities. 
For more information on membership and eligibility requirements, visit: http://msshq.org/Store/Membership.cfm 
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 
127 Park Street, NE, Vienna, VA 22180-4620 • (703) 281-6613 • Fax # (703) 281-6671 
“The Technical Voice of the Industry” 
IHS ANSI/MSS SP-1 35-2016
Manufacturers Standardization Society of the Valve and Fittings Industry.