Types of ball valve:

-Float ball valve: the ball is held on two seat rings.
-Trunnion ball valve: the ball is supported on its vertical rotation axis by a trunnion. The trunnion absorbs the pressure from the flow, therefore the contact between the ball and the seat is not excessively stressed and the operating torque can remain low. This design is recommend for big diameters and high pressure.

Types of Body:

-Welded: Welded ball valves guarantee the absence of leakages along all the valve's life, with no requirement for maintenance operations. This is a highly important requisite especially for ball valves installed onto underground and submarine pipelines. It is also often chosen for hazardous fluids.
-Top entry: The ball can be taken out removing the top cover. It can be repaired on site.
-End entry: The body is one piece. The ball is entered from the axial entry.
-Split body: there are two or three pieces. It allows easy inspection and maintenance of all internal parts.

IEC 60534-3-2 Ed. 2.0 b:2001
DIN EN 60534-3-2
Industrial-process control valves - Part 3-2: Dimensions - Face-to-face dimensions for rotary control valves except butterfly valves
Gives the overall lengths of following types: segmental ball, eccentric rotary plug, and barstock globe; wafer butterfly valves are excluded. Types: flanged and flangeless segmented ball and eccentric rotary control valves.
Nominal sizes: DN 20 up to and including DN 400. Ratings: PN 10, PN 16, PN 20, PN 25, PN 40, PN 50 and PN 100.
Only raised face flanges are covered. Specifically excluded are all valves having welded or threaded end connections.

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 14313:2007
BSR/API Spec 6D
Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves
ISO 14313:2007 specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.
ISO 14313:2007 is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723).
ISO 14313:2007 is not applicable to valves for pressure ratings exceeding PN 420 (Class 2 500).

ISO 16135:2006
DIN EN ISO 16135:2006
ONORM EN ISO 16135:2006
Industrial valves -- Ball valves of thermoplastics materials.
This Standard specifies requirements and tests for ball valves in thermoplastics materials for isolating service, for control service and to divert/mix fluids. It 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.

ISO 17292:2004
EN ISO 17292
BS 5351:1986
DIN EN ISO 17292
ONORM EN ISO 17292:2004
Metal ball valves for petroleum, petrochemical and allied industries.
ISO 17292:2004 specifies the requirements for a series of metal ball valves suitable for petroleum, petrochemical, natural gas plants, and related industrial applications. It covers valves of the nominal sizes DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450 and 500, corresponding to nominal pipe sizes NPS 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 4, 6, 8, 10, 12, 14, 16, 18 and 20, and is applicable for pressure designations of Class 150, 300, 600 and 800 (the last applicable only for valves with reduced bore and with threaded and socket welding end), and PN 16, 25 and 40.

ISO 7121:2006
Steel ball valves for general-purpose industrial applications

BSR/ASTM Z7974Z-200x
Specification for Ferrous and Nonferrous Ball Valves (DRAFT STANDARD)

IAPMO IGC 157-2006
Ball Valves

IAPMO IGC 232-2006
Pvc Valve With Integral Ball And Spring-Check Or Swing-Check Features .

MSS SP-110-1996
WW-V-35C NOT 2
Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends

MSS SP-122-2005
Plastic Industrial Ball Valves
This Standard Practice establishes requirements for plastic industrial ball valves in sizes NPS 1/2 to NPS 4, designed for general industrial systems for the distribution of pressurized liquids that are chemically compatible with the piping material. It reflects the industry practice of design, manufacture, and applicationaof these valves.

MSS SP-72-1999
WW-V-35C NOT 2
Ball Valves with Flanged or Butt-Welding Ends for General Service.

AS 4796-2001
Water supply - Metal bodied and plastic bodied ball valves for property service connection
Specifies requirements for metal bodied and plastic bodied ball valves for installation between the reticulation water main and the property water meter in nominal sizes DN 15, DN 20, DN 25, DN 32, DN 40, and DN 50.

A-A-2297 NOT 1
Ball valve (Drop-out type: line; inline; suction; discharge) (No S/S Document).

A-A-2377 NOT 1
Valve, Ball (single line) (No S/S Document).

MIL-V-23611 NOT 1
Valves, Ball (No S/S Document)

MIL-V-24509A
Valves, flanged, ball and plug for sewage and sea water service.

MIL-V-47322/6 NOT 2
Valve, Selector, Ball (No S/S Document).

MS35755C NOT 0
cup, oil, lubricating, ball valve (drive), straight (s/s by MIL-C-1258)

QPL-22687-17 NOT 1
valve, ball, naval shipboard, for air, nitrogen, helium or hydraulic service (sizes 2-1/2 inches i.p.s. and below) (no s/s document)

QPL-23696 NOT 2
valve, ball, naval shipboard, water service (no s/s document)

WW-V-35C NOT 2
Valve, ball (SS by MSS SP-72 and MSS SP-110)

EN 1983
Industrial valves - Steel ball valves

EN 331
Manually Operated Ball Valves and Closed Bottom Taper Plug Valves for Gas Installations for Buildings

DIN 3357-1:1989
Metal ball valves; general requirements and methods of test
This standard applies to the arrangement and structure of design standards for ball valves for general applications, made of metallic materials.

DIN 3430
Gas valves; angle pattern ball shut-off valves
This standard specifies dimensions and designation of angle pattern ball values for use in installations for gases to DVGW G 260 part 1 for service pressure 4 bar.

DIN 3431
Gas valves; angle pattern ball shut-off valves with compression coupling
This standard specifies dimensions and designation of angle pattern ball valves with compression fitting for use in installations for gases to DVGW G 260 part 1 for service pressure 4 bar.

DIN 3432
Gas valves; straight pattern ball shut-off valves with compression coupling
This standard specifies dimensions and designation of straight pattern ball valves with compression fitting for use in installations for bases to DVGW G 260 part 1 for service pressure 4 bar.

DIN 3435
Gas valves; angle pattern ball shut-off valves with compression coupling
The draft standard specifies the dimensions and designation of angle pattern ball shut-off valves with compression coupling operated with gases according to DVGW Technical Rules G 260 part 1 and with allowable maximum working pressures of 4 bar.

DIN 85003-8
Technical specifications for valves for shipboard use - Part 8: Ball valves
The document contains sets the selection to DIN 85003-2 of requirements and tests they are mainly for ball valves will apply trade- and naval shipbuilding.

DIN CEN/TS 13547
ONORM CEN/TS 13547:2007
Industrial valves - Copper alloy ball valves; German version CEN/TS 13547:2006
This Technical Specification applies to copper alloy ball valves for general use having, flanged, threaded, capillary or compression or loose nut/union body ends.

DIN EN 12567:2000
Industrial valves - Isolating valves for LNG - Specification for suitability and appropriate verification tests; English version of DIN EN 12567
The document defines the general performance requirements of isolating valves (globe valves, plug valves, ball valves, butterfly valves) used in the production, storage, transmission (by pipelines, rail, road or sea) of Liquefied Natural Gas (LNG).

DIN EN 13774:2003
Valves for gas distribution systems with maximum operating pressures less than or equal to 16 bar - Performance
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.

DIN EN 13828:2003
ONORM EN 13828:2004
Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings - Tests and requirements
The document specifies the characteristics of the materials and the design of ball valves, the mechanical, hydraulic and acoustic requirements of ball valves, the test methods to verify the requirements of ball valves, the marking requirements of ball valves. It applies primarily to copper alloy ball valves, dimensions DN 8 to DN 100, for potable water supply in buildings up to PN 10 and a distribution temperature of 65 C

DIN EN 13942:2005
ONORM EN 13942:2004
Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (ISO 14313:1999 modified); English version EN 13942:2003
This European Standard specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries. On-land supply systems used by the gas supply industry are excluded from the scope of this Standard.

DIN EN 14141:2004
Valves for natural gas transportation in pipelines - Performance requirements and tests.
This European Standard applies to all valves (plug valves, ball valves, gate valves and check valves) used in onshore transmission pipelines for transport of natural gas in accordance with EN 1594. It comprises all valves which are components of the pipeline. The standard specifies valves for pipelines with a maximum operating pressure (MOP) over 16 bar. Excluded from the scope are control valves, safety valves and all valves smaller or equal to DN 50. This standard lays down specifications on requirements and appropriate verification tests carried out in production and for certification purposes to give proof that the valves comply with the requirements.

DIN EN 1983:2006
ONORM EN 1983:2006
Industrial valves - Steel ball valves; German version EN 1983:2006.
This European Standard specifies requirements for steel ball valves with flanged, threaded, socket welding or butt welding ends. The Standard applies to steel ball valves mainly used for industrial and general applications. However, they can be used for other applications provided the requirements of the relevant performance standard are met.

DIN EN 331/A1
Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings; German version EN 331:1998/prA1:2005
This document has been prepared by Technical Committee CEN/TC 236 under preparation of Normenausschuss Gastechnik (NAGas) into DIN Deutsches Institut fnr Normung e.V. in accordance to DIN EN 331. The Amendment stipulates, like DIN EN 331 requirements for manually operated ball valves and closed bottom taper plug valves for gas installations for buildings for nominal sizes up to and including DN 50 and their testing.

DIN EN 331:1999
Manually operated ball valves and closed bottom taper plug valves for gas installations in buildings.
The document specifies general requirements for manually operated ball valves and closed bottom taper plug valves for gas installations for buildings.

DIN EN ISO 14723
ANSI/API 6DSS/ISO 14723-2007
Petroleum and natural gas industries - Pipeline transportation systems - Subsea pipeline valves (ISO 14723:2001); German and english version EN ISO 14723:2001
This document has been prepared by Technical Committee CEN/TC 236 under preparation of Normenausschuss Gastechnik (NAGas) into DIN Deutsches Institut fnr Normung e.V. in accordance to DIN EN 331. This European Standard contains requirements the design, manufacturing, testing and documentation of ball, check and gate valves for subsea application in offshore pipeline systems for the petroleum and natural gas industries. This International Standard is not applicable to valves for pressure ratings exceeding PN 420 (Class 2500). Annex A of this International Standard provides guidelines to assist the purchaser with valve type selection and specification of requirements when ordering valves. Annex B of this International Standard provides a checklist summary of information to be provided by the manufacturer and/or purchaser when ordering valves.

JIS B 2061:2006
Faucets, ball taps and flush valves.

B 2308 (KSA)
Ball Valve.

M 3529 (KSA)
Manually Operated Thermoplastic Ball Valve.

GB/T 12237-1989
General purpose industrial valves--Flanged and butt-weld end steel ball valves (TEXT OF DOCUMENT IS IN CHINESE).

GB/T 15185-1994
Cast iron and copper alloy ball valves (TEXT OF DOCUMENT IS IN CHINESE).

NBR14788
Ball valves - Requirements (Text of document is in portuguese)
Estabelece os requisitos para valvulas de esfera com extremidades roscadas, flangeadas ou soldadas para uso geral em instalaoes industriais,prediais ou domiciliares de gua, leos, gases derivados de petrleo e outros fluidos de origem animal, mineral, vegetal ou mesmo sintetizados artificialmente.

NBR15015
Storage of flammable and combustible liquids - Service station - Foat ball valve (Text of document is in portuguese)
Estabelece os requisitos gerais para fabricaao e desempenho de vlvulas de esfera flutuante, a serem instaladas em sistema de armazenamento subterrneo de combustveis (SASC) de posto revendedor e posto de abastecimento.

ANSI/API 608-2002
Metal Ball Valves - Flanged and Butt-Welding Ends.
Covers Class 150 and Class 300 metal ball valves that have either butt-welding or flanged ends and are for use in on-off service.

ANSI/AWWA C507-2005
Ball Valves 6 in (150 mm) through 48 in (1200 mm).
Covers gray-iron, ductile-iron, and cast-steel, flanged-end, tight-shutoff, shaft- or trunnion-mounted, full-port, double-and single-seated ball valves for preassures up to 300 psi (2,100 kPa) in sizes from 6-in. through 48-in. (150-mm through 1,200-mm) diameter for use in water systems having fresh water with a pH greater than 6 and less than 12 and with temperatures greater than 32 degrees F (0 degrees C) and less than 125 degrees F (52 degrees C.

BSR/AWWA C5PP-200x
Plastic Ball Valves 1/2-In. Through 2-In. (13 mm - 50 mm) (DRAFT STANDARD).
This standard covers threaded, union or compression ended double- and single-seated non-metallic ball valves for pressures up to 200 psi (1,400 dPa) in sizes from 1/2-In. through 2-In. (12-mm through 50-mm) diameter for use in potable water systems with temperatures greater than 32 F (0 C) and less than 125 F (52 C).

UL 842-1999 (R2007)
Valves for Flammable Fluids
These requirements cover valves that are intended to be used for the control of flammable fluids. They are of the type commonly used in piping systems and in the assembly of motor fuel dispensing and fuel burning equipment. Valves covered by this standard are for use with flammable fluids which are handled at temperatures within the range of minus 29ºC (minus 20ºF) to 52ºC (125ºF).