IEC 60534-8-3 Ed. 2.0 b:2000
Industrial-process control valves - Part 8-3: Noise considerations - Control valve aerodynamic noise prediction method
Establishes a theoretical method to predict the external sound-pressure level generated in a control valve by the flow of compressible fluids. Applies to the following single-stage valves: globe (single and double seated), butterfly, angle, rotary plug (eccentric, spherical), ball, and valves with cage trims.

ISO 10631:1994
Metallic butterfly valves for general purposes
Specifies the requirements for metallic butterfly valves with centred or eccentric disc, with centred or eccentric shaft, with metallic, polymeric, elastomeric or composite seating, with lined or unlined body, coated or uncoated, to be used in flanged or butt-welded piping systems for shut-off, throttling or flow control. Covers butterfly valves with nominal diameters DN 40 to DN 2000 and is applicable to valves of nominal pressure PN 2,5 to 50.

ISO 16136:2006
BS EN ISO 16136:2006
DIN EN ISO 16136 Industrial valves -- Butterfly valves of thermoplastics materials
ISO 16136:2006 specifies requirements for the design, functional characteristics and manufacture of butterfly valves made of thermoplastics materials intended for isolating and control service, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and +120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests.
ISO 16136:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed.
It is concerned with the range of DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 450, DN 500 and DN 600, and the range of PN 6, PN 10, PN 16 and Class 150.

ASTM F1098-87(2010)
Standard Specification for Envelope Dimensions for Butterfly Valves-NPS 2 to 24
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 ANSI 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 the standard. The values given in parentheses are for information only.

BSR/ASTM Z7975Z-200x
Specification for Ferrous and Nonferrous Butterfly Valves

MSS SP-67-2002a
Butterfly Valves
This Standard Practice covers dimensions, design, testing, and marking requirements for butterfly valves.

MSS SP-68-1997 (R 2004)
High Pressure Butterfly Valves with Offset Design
This standard practice covers design requirements, test performance, marking requirements, and nomenclature for butterfly valves designed for high pressure performance, having a seat plane offset from the plane of the stem centerline.

AS 4795-2006
Butterfly valves for waterworks purposes
Specifies requirements for Classes 10, 16, 21 and 35 manually operated resilient-seated double-flanged butterfly valves for waterworks purposes, with a maximum operating temperature of 40C

MIL-C-21906 NOT 1
CARTRIDGE, BUTTERFLY VALVE, MARK 1 MOD 0 (NO S/S DOCUMENT)

MIL-V-22133C NOT 1
VALVES, RESILIENT AND METAL SEATED, BUTTERFLY WORKING PRESSURE UP TO 200 PSI, 180 DEG. F. MAXIUM (SHIPBOARD USE) (S/S BY MIL-V-24624)

MIL-V-24624(1)
VALVE, BUTTERFLY, WAFER & LUG STYLE, SHIPBOARD SERVICE

QPL-22133-25 NOT 1
VALVE, BUTTERFLY, WORKING PRESSURES UP TO 200 P.S.I. 150 F. MAX. (FOR SHIPBOARD USE) (NO S/S DOCUMENT)

QPL-24624-16 NOT 1
Valves, Butterfly, Wafer and Lug Style, Shipboard Service (Replaced by the Qualified Products Database (QPD) see Notice for Additional Information)

WW-V-1967 NOT 1
VALVE, BUTTERFLY (THREADED ENDS) BRASS OR BRONZE (NO S/S DOCUMENT)

BS EN 12567:2000
DIN EN 12567:2000
Industrial valves. Isolating valves for LNG. Specification for suitability and appropriate verification tests
This European Standard specifies the general performance requirements of isolating valves (gate valves, globe valves, plug and ball valves and butterfly valves) used in the production, storage, transmission (by pipeline, rail, road or sea) of Liquefied Natural Gas (LNG). LNG filling valves for vehicule refuelling systems are excluded from the scope of this standard. DN range from DN 8 to DN 1000. PN range from PN 16 to PN 100. Class range from Class 150 to Class 900. Temperature range from - 196 C to + 60 C.

BS EN 13774:2003
DIN EN 13774:2003
Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar. Performance requirements
This EN deals with isolating valves used for gas distribution systems with maximum operating pressure <= 16 bar, and which operate with fuel gases of the first and second family, according to EN 437. It applies to valves DN 25 and larger. The types of isolating valves to be considered are: plug and ball valves, gate valves, globe valves and butterfly valves.

BS EN 488:2003
DIN EN 488:2009
District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
This European Standard specifies requirements and test methods for valves of prefabricated thermally insulated valve assemblies comprising a steel valve, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipe assemblies in accordance with prEN 253. This standard applies only to insulated valve assemblies for continuous operation with hot water at various temperatures in accordance with clause 1 of prEN 253:2002. Guidelines for quality inspection are given in annex A of this standard. Guidelines for installation of valves are given in annex B of this standard. NOTE For this application the following valve types are commonly used: Ball valves, gate valves, and butterfly valves. NOTE This standard does not include rules for calculation of loads and stresses.

BS EN 50216-8:2005
Power transformer and reactor fittings. Butterfly valves for insulating liquid circuits

BS EN 593:2009
DIN EN 593:2009
ONORM EN 593:2009
SS-EN 593
Industrial valves. Metallic butterfly valves
This European Standard specifies requirements for butterfly valves having metallic bodies for use in flanged or butt welding piping systems and used for isolating, regulating or control applications.
The PN and Class ranges are: PN 2,5; PN 6 ; PN 10 ; PN 16 ; PN 25 ; PN 40 ; Class 150 ; Class 300.
The DN range is: DN 20 ; DN 25 ; DN 32 ; DN 40 ; DN 50 ; DN 65 ; DN 80 ; DN 100 ; DN 125 ; DN 150 ; DN 200 ; DN 250 ; DN 300 ; DN 350 ; DN 400 ; DN 450 ; DN 500 ; DN 600 ; DN 700 ; DN 750 ; DN 800 ; DN 900 ; DN 1000 ; DN 1200 ; DN 1400 ; DN 1600 ; DN 1800 ; DN 2000 ; DN 2200 ; DN 2400.
DN 750 is used only for Class 150 and Class 300. For special application as industrial process control valves, see EN 1349 and EN 60534-2-1.

BS EN 60534-3-2:2001
Industrial-process control valves. Dimensions. Face-to-face dimensions for rotary control valves except butterfly valves

DIN 3538
Valves for gas installations; butterfly valves; female threaded ends
This standard covers dimensions and designation of internally threaded butterfly valves for gas installations for gases to DVGW G 260 part 1 in sizes DN 15 to DN 50 for service pressure 4 bar and in size DN 65 for service pressure 1 bar.

DIN 85003-3
Technical specifications for valves for shipboard use - Part 3: Butterfly valves
The document contains sets the selection to DIN 85003-2 of requirements and tests they are mainly for butterfly valves will apply trade- and naval shipbuilding.

DIN 86266
Ships and marine technology - Butterfly valves for flanges extra light duty wafer type and flanged type - DN 50 to DN 125, PN 10
This standard specific single exentric soft sealing butterfly valves for extra light duty of water type and flanged type.

JIS B 2032:1995
Wafer type rubber-seated butterfly valves

B 2333
Butterfly Valves for Water Works

B 2813
Wafer Type Rubber - Seated Butterfly Valves

V 7490
Rubber-Seat Butterfly Valves for Marine Use

GB/T 12238-1989
General purpose industrial valvesFlanged and wafer butterfly valves

GB/T 3037-1994
Marine duo-eccentric-pivoted butterfly valves
This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductile iron, bronze, steel, nickel-base alloy, or special alloy butterfly valves that provide tight shutoff in the closed position and are suitable for flow regulation.

ANSI/AWWA C504-2006
Rubber-Seated Butterfly Valves
This standard establishes minimum requirements for rubber-seated butterfly valves, 3 in. (75 mm) through 72 in. (1,800 mm) in diameter, with various body and end types, for fresh water having a pH range from 6-12 and a temperature range from 33°-125°F (0.6°-52°C). This standard covers rubber-seated butterfly valves suitable for a maximum steady-state fluid working pressure of 250 psig (1,723 kPa gauge), a maximum steady-state differential pressure of 250 psi (1,723 kPa), and a maximum full open velocity of 16 ft/sec (4.9 m/sec.

BSR/AWWA C516-200x
Large Diameter Butterfly Valves Sizes 78 In. (2000 Mm) And Larger
This standard establishes minimum requirements for rubber-seated butterfly valve assemblies, 78 in. (2,000 mm) and larger with flanged ends for fresh water having a pH range from 6-12 and a temperature range from 33- 125F (0.6- 52C) and suitable for a maximum steady-state fluid working pressure of 150 psig (1034 kPa gauge), a maximum steady-state differential pressure of 150 psi (1034 kPa), and a maximum full open fluid velocity of 16 ft/sec (4.9 m/sec).

API 609:2004
Butterfly Valves: Double Flanged, Lug- and Wafer-Type
This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductile iron, bronze, steel, nickel-base alloy, or special alloy butterfly valves that provide tight shutoff in the closed position and are suitable for flow regulation.

UL 1091 (Ed. 6)
Standard for Butterfly Valves for Fire-Protection Service
BUTTERFLY VALVE INDICATOR POSTS FOR FIRE PROTECTION SERVICE
1.1 These requirements cover butterfly valves intended for use in piping systems supplying water for fire-protection service.
1.2 The valves covered by these requirements are intended for installation and use in accordance with the Standards for:
a) Low, Medium and High Expansion Foam and Combined Agent Systems, NFPA 11;
b) Installation of Sprinkler Systems, NFPA 13;
c) Installation of Standpipe and Hose Systems, NFPA 14;
d) Water Spray Fixed Systems for Fire Protection, NFPA 15;
e) Deluge Foam-Water Sprinkler Systems and Foam-Water Spray Systems, NFPA 16;
f) Installation of Centrifugal Fire Pumps, NFPA 20;
g) Water Tanks for Private Fire Protection, NFPA 22;
h) Installation of Private Fire Service Mains and Their Appurtenances, NFPA 24.

UL 1091A (Ed. 3)
BUTTERFLY VALVE INDICATOR POSTS FOR FIRE PROTECTION SERVICE