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ASTM F1098-87(2019)

(Specification)

Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24

Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24

ABSTRACT
This specification covers standard envelope dimensions for manual (lever and gear actuator) butterfly valves installed in shipboard piping systems. Materials covered by this specification are conventional and ANSI B16.34 class butterfly valves (from NPS 2 to NPS24) of both lug and wafer types.
SCOPE
1.1 This specification provides standard dimensions for manual (lever and gear actuator) butterfly valves installed in shipboard piping systems in NPS 2 to NPS 24, inclusive.  
1.2 This specification covers conventional and ASME B16.34 class butterfly valves of both lug and wafer types.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Nov-2019
ICS
23.060.10 - Globe valves
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.11 - Machinery and Piping Systems
Current Stage
Ref Project

Relations

Replaces
ASTM F1098-87(2015) - Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24
Effective Date
01-Dec-2019
Referred By
ASTM F2363/F2363M-17(2023) - Standard Specification for Sewage and Graywater Flow Through Treatment Systems
Effective Date
01-Dec-2019

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ASTM F1098-87(2019) - Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24ASTM F1098-87(2019) - Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24
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ASTM F1098-87(2019) - Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F1098 −87 (Reapproved 2019) An American National Standard
Standard Specification for
Envelope Dimensions for Butterfly Valves—NPS 2 to 24
This standard is issued under the fixed designation F1098; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Dimensions
1.1 This specification provides standard dimensions for
3.1 Face-to-Face Dimensions:
manual (lever and gear actuator) butterfly valves installed in
3.1.1 Valve body face-to-face dimensions are provided in
shipboard piping systems in NPS 2 to NPS 24, inclusive.
Table 1.
1.2 This specification covers conventional and ASME
3.1.2 The face-to-face dimensions are the metal-to-metal
B16.34 class butterfly valves of both lug and wafer types.
dimensions between the valve body flange faces that require
1.3 The values stated in inch-pound units are to be regarded
separate gaskets or the compressed or installed condition for
as standard. The values given in parentheses are mathematical
valves using liners that extend from the body contact faces and
conversions to SI units that are provided for information only
act as flange gaskets.
and are not considered standard.
3.2 Actuator Dimensions:
1.4 This international standard was developed in accor-
3.2.1 The maximum permissible dimensions for lever- and
dance with internationally recognized principles on standard-
gear-type actuators are provided in Fig. 1.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 3.2.2 The handwheel and handle may be on either side of
mendations issued by the World Trade Organization Technical the valve.
Barriers to Trade (TBT) Committee.
3.2.3 All handwheels and handles rotate clockwise to close
the valve.
2. Referenced Documents
2.1 ASME Standard:
4. Tolerances
B16.34 Valves — Flanged, Threaded, and Welding End
4.1 Face-to-FaceDimensions—Aplusorminustoleranceof
1 ⁄16 in. (1.6 mm) for all sizes shall be allowed (see Table 1).
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems.
5. Keywords
Current edition approved Dec. 1, 2019. Published January 2020. Originally
approved in 1987. Last previous edition approved in 2015 as F1098 – 87 (2015).
5.1 envelope dimensions; gear actuator butterfly valves;
DOI: 10.1520/F1098-87R19.
lever butterfly valves; manual butterfly valves
Available from American Society of Mechanical Engineers (ASME), ASME
International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
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