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Database: 365,228(8 Aug 2026)

Nominal

Nominal, Total:93 items.

The international standard classification for "Nominal" includes: Equipment for the chemical industry , Enamels , Numerically controlled machines , Rubber compounding ingredients , Plastics pipes , Pressure vessels, gas cylinders , Fluid power systems , Dying and finishing equipment , Couplings , Knitting machines , Industrial process measurement and control , Flanges, couplings and joints , Fluid power systems in general , Wind turbine systems and other alternative sources of energy , Other fluid power system components , Metrology and measurement in general , Components for aerospace construction , Dental equipment , Piping systems .

The Chinese standard classification for "Nominal" includes: Non-metal chemical machinery equipment , Chemical machinery and equipment in general , Machine tool element , Plastic profile , Pressure vessel , Coupling, brake and speed variator , Hydraulic and pneumatic device , Dyeing and finishing machinery and apparatus , Textile machinery and apparatus in general , Industrial automation and control device in general , Pipeline fittings , Wind energy , Pipe fittings, clamps and seals , Stomatologic device, equipment and material .


General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

  • GB/T 7996-2013 Nominal Capacity and Diameter of Glass-lined Equipment
  • GB/T 1048-2005 Pipework Components-Definition and Selection of PN
  • GB/T 1047-2019 Pipework components-Definition and selection of nominal size
  • GB/T 17587.2-1998 Ball screws - Part 2: Nominal diameters and nominal leads - Metric series
  • GB/T 2346-2003 Fluid power systems and components—Nominal pressures
  • GB/T 4217-2008 Thermoplastics pipes for the conveyance of fluids - Nominal outside diameters and nominal pressures
  • GB 2347-1980 Hydraulic pump and motor nominal displacement series
  • GB/T 25925-2010 Industrial-process measurement and control instruments—Values of nominal working pressure
  • GB/T 8456-2003 Textile machinery - Knitting machines - Nominal diameters of circular machines
  • GB/Z 25425-2010 Declaration of apparent sound power level and tonality values for the wind turbine
  • GB/T 25474-2010 Values of nominal size for industrial process measurement and control instruments
  • GB/T 3507-1983 Nominal torque series of the mechanical coupling
  • GB/T 1560-1979 Normal diameters for ventilation pipe line and accessories for ships metric series
  • GB/T 1047-2005 Pipework components - Definition and selection of DN(nominal size)
  • GB/T 1048-2019 Pipework components—Definition and selection of nominal pressure
  • GB/T 9019-2015 Nominal diameter for pressure vessels
  • GB/T 3507-2008 Nominal torque series of the mechanical coupling
  • GB/T 9019-2001 Nominal diameter of pressure vessels
  • GB/T 28186-2011 Textile machinery—Dyeing and finishing machines—Nominal speeds
  • GB/T 2347-1980 Hydraulic fluid power; Pumps and motors; Geometric displacements
  • GB/T 7996-2020 Norminal capacity and diameter of glass-lined equipment
  • GB/T 7996-2006 Hydraulic fluid power - Pressure-reducing valves sequence valves unloading valves throttle valves and check valves - Mounting surfaces
  • GB/T 7996-1987 Nominal volume and nominal diameter for glass-lined vessel
  • GB/T 8456-2025 Textile machinery—Knitting machines—Nominal diameters of circular machines
  • GB/T 8457-2003 Textile machinery and accessories - Knitting machines - Number of needles for circular knitting machines of large nominal diameter
  • GB/T 4217-2001 Thermoplastics pipes for the conveyance of fluids--Nominal outside diameters and nominal pressures

Professional Standard - Aviation

Professional Standard - Petroleum

Professional Standard - Textile

Professional Standard - Machinery

  • JB/T 9235-1999 Industrial process measurement and control instrument -- Series of nominal working pressure
  • JB/T 7938-1999 Hydraulic fluid power. Power units. Nominal capacities of reservoir
  • JB/T 7938-2010 Hydraulic fluid power-Power units-Nominal capacities of reservoir
  • JB/T 9234-1999 Industrial process measurement and control instrument -- Series of nominal size

Professional Standard - Aerospace

  • QJ 202-1986 Nominal Diameter for Pipes and Pipeline Fittings
  • QJ 203-1986 Nominal and Test Pressure for Pipes and Pipeline Fittings

Professional Standard - Electron

  • SJ 1767-1981 Metallic bell cover for vacuum equipment-Nominal diameter

Professional Standard - Medicine

  • YY/T 1011-2014 Dental rotary instruments―Nominal diameters and designation code number

Professional Standard-Ships

  • CB/T 4180-2011 Normal size for ventilation pipe line and accessories for ships metric series

Ente Nazionale Italiano di Unificazione

  • UNI 4082:1958 Drain cocks for shipboard use. Plugs for spring-operated drain cocks. Nominal size 6, nominal pressure 16; nominal size 8 and 10, nominal pressure 10; nominal size 15, nominal pressure 6; nominal size 20 to 32, nominal pressure 2.5.
  • UNI 4076:1958 Drain cocks for shipboard use. Spring- operated drain cocks. Nominal size 6, nominal pressure 16; nominal size 8 and 10; nominal size 15, nominal pressure 6; nominal size 20 to 32, nominal pressure 2.5.
  • UNI 4079:1958 Drain cocks for shipboard use. Housing for spring-operated drain cocks. Nominal size 6, nominal pressure 16; nominal size 8 and 10, nominal pressure 10; nominal size 15, nominal pressure 6; nominal size 20 to 32, nominal pressure 2.5.
  • UNI 4078:1958 Drain cocks for naval use. Simple drain cocks. Nominal size 8 and 10, nominal pressure 10; nominal size 15, nominal pressure 6; nominal size 20 to 32, nominal pressure 2.5.
  • UNI 2531:1944 Flanged cocks for naval pipes, lightweight series. Straightway cocks. Nominal diameters 20 to 32, nominal pressure 10. Nominal diameters 40 and 50, nominal pressure 6. Nominal diameters 60 to 80, nominal pressure 4.
  • UNI 2535:1944 Flanged cocks for naval pipes, lightweight series. Three-way cocks. Nominal diameters 20 to 32, nominal pressure 10. Nominal diameters 40 and 50, nominal pressure 6. Nominal diameters 60 to 80, nominal pressure 4.
  • UNI 2533:1944 Flanged cocks for naval pipes, lightweight series. Angle cocks. Nominal diameters 20 to 32, nominal pressure 10. Nominal diameters 40 and 50, nominal pressure 6. Nominal diameters 60 to 80, nominal pressure 4.
  • UNI 4053:1958 Fitted cocks for shipboard use. Straightway cocks with two couplings. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 4081:1958 Drain cocks for naval use. Casings for simple drain cocks. Nominal size 8 and 10, nominal pressure 10; nominal size 15, nominal pressure 6; nominal size 20 to 32, nominal pressure 2.5.
  • UNI 2275:1967 Metallic pipe flanges. Oval slip-on- welding flanges. Nominal pressure 2,5, nominal diameters 65 to 100 and nominal pressure 6, nominal diameters 10 to 50.
  • UNI 3295:1952 Flanged cocks for naval pipes, heavy series. Three-way cocks, nominal diameter 20 to 50, nominal pressure 6; nominal diameter 65 and 80, nominal pressure 4.
  • UNI 2471:1944 Cast valves for naval pipes, lightweight series. Stems for manually- operated valves, nominal diameters 40 to 150, nominal pressure 10 and nominal diameters 160 to 300, nominal pressure 6.
  • UNI 4063:1958 Fitted cocks for shipboard use. Housing for straightway cocks with two couplings. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 3291:1952 Flanged cocks for naval pipes, heavy series. Straightway cocks, nominal diameter 20 to 50, nominal pressure 6; nominal diameter 65 and 80, nominal pressure 4.
  • UNI 4069:1958 Fitted cocks for shipboard use. Housing for three-way cocks with three couplings. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 3006:1949 Cast gate valves for naval pipes, heavy series. Cast iron gate valves. Nominal diameters 50 to 300. Nominal pressure 6. Nominal diameters 350 to 450, nominal pressure 1.
  • UNI 2453:1944 Cast valves for naval pipes, lightweight series. Automatic angle valves. Nominal diameters 40 to 150, nominal pressure 10; nominal diameters 160 to 00, nominal pressure 6.
  • UNI 3293:1952 Flanged cocks for naval pipes, heavy series. Right-angle cocks, nominal diameter 20 to 50, nominal pressure 6; nominal diameter 65 and 80, nominal pressure 4.
  • UNI 2779:1945 Cast gate valves for naval pipes, lightweight series. Malleable cast iron gate valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 200, nominal pressure 6.
  • UNI 4065:1958 Fitted cocks for shipboard use. Housing for straightway cocks with coupling and threaded connection. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 2447:1944 Cast valves for naval pipes, lightweight series. Automatic diverted flow straight way valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 200, nominal pressure 6.
  • UNI 2487:1944 Cast valves for naval pipes, lightweight series. Gaskets for valve caps, nominal diameters 40 to 150, nominal pressure 10 and nominal diameters 160 to 300, nominal pressure 6.
  • UNI 2477:1944 Cast valves for naval pipes, lightweight series. Shutters for manually-operated valves, nominal diameters 40 to 150, nominal pressure 10 and nominal diameters 160 to 300, nominal pressure 6.
  • UNI 2780:1945 Cast gate valves for naval pipes, lightweight series. Bronze gate valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 200, nominal pressure 6. Nd 225 a.
  • UNI 4055:1958 Fitted cocks for shipboard use. Straightway cocks with coupling and threaded connection. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 4061:1958 Fitted cocks for shipboard use. Angle cocks with coupling and threaded connection. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 2778:1945 Cast gate valves for naval pipes, lightweight series. Steel gate valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 400, nominal pressure 6. Nd 425 e.
  • UNI 2473:1944 Cast valves for naval pipes, lightweight series. Stems for automatic valves, nominal diameters 40 to 150, nominal pressure 10 and nominal diameters 160 to 200, nominal pressure 6.
  • UNI 2458:1944 Cast valves for naval pipes, lightweight series. Cast steel casings for diverted flow straightway valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 300, nominal pressure 6.
  • UNI 2445:1944 Cast valves for naval pipes, lightweight series. Manually operated diverted flow straightway valves. Nominal diameters 40 to 150, nominal pressure 10. Nominal diameters 160 to 30, nominal pressure 6.
  • UNI 4071:1958 Fitted cocks for shipboard use. Housing for angle cocks with coupling and threaded connection. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 2464:1944 Cast valves for naval pipes, lightweight series. Cast steel casings for angle valves. Nominal diameters 40 to 150, nominal pressure 10; nominal diameters 160 to 300, nominal pressure 6.
  • UNI ISO 3408-2:2009 Ball screws - Part 2: Nominal diameters and nominal leads - Metric series
  • UNI 2451:1944 Cast valves for naval pipes, lightweight series. Manually operated angle valves. Nominal diameters 40 to 150, nominal pressure 10; nominal diameters 160 to 300, nominal pressure 6.
  • UNI 2462:1944 Cast valves for naval pipes, lightweight series. Malleable cast iron or bronze casings for angle valves. Nominal diameters 40 to 150, nominal pressure 10; nominal diameters 160 to 30, nominal pressure 6.
  • UNI 4059:1958 Fitted cocks for shipboard use. Three- way cocks with three couplings with l and t-shaped male connector. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.
  • UNI 4057:1958 Fitted cocks for shipboard use. Three- way cocks with two couplings and threaded connection with l and t-shaped male connector. Nominal size 6, nominal pressure 20; nominal size 8 to 15, nominal pressure 10.

GCC Standardization Organization

  • GSO 399:1994 Pressure pipeline components -Definition of nominal size (Nominal diameter)-Nominal pressure.

The Directorate General of Specifications and Metrology (DGSM)

  • OS GSO 399:1994 Pressure pipeline components -Definition of nominal size (Nominal diameter)-Nominal pressure.
  • OS GSO ISO 3408-2:2013 Ball screws -- Part 2: Nominal diameters and nominal leads - Metric series

German Institute for Standardization

  • DIN 69051-2:1989 Machine tools; ball screws; nominal diameters and nominal leads

British Standards Institution (BSI)

  • BS 6101-5:1984 Machine tool ball screws-Specification for nominal diameters and nominal leads

Korean Agency for Technology and Standards (KATS)

Swedish Institute for Standards

  • SS-ISO 3408-2:1992 Ball screws - Part 2: Nominal diameters and nominal leads - Metric series

RO-ASRO

  • STAS 11758-1989 Cast iron and steel industrial valves SIGHTGLASSES Nominal diameters and nominal press

Bureau of Indian Standards

YU-JUS

Kingdom of Bahrain Testing and Metrology Directorate

Magyar Szabványügyi Testület

International Organization for Standardization (ISO)

  • ISO 3408-2:2021 Ball screws - Part 2: Nominal diameters, leads, nut dimensions and mounting bolts - Metric series