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ANSI Flanges

  • ANSI B16.5 Class 150 Flanges

    ANSI flanges are available at Yanhao Flange in class 150.  The ANSI flanges in the class 150 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 150 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 300 Flanges

    ANSI flanges are available at Yanhao Flange in class 300.  The ANSI flanges in the class 300 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 300 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 400 Flanges

    ANSI flanges are available at Yanhao Flange in class 400.  The ANSI flanges in the class 400 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 400 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 600 Flanges

    ANSI flanges are available at Yanhao Flange in class 600.  The ANSI flanges in the class 600 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 600 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 900 Flanges

    ANSI flanges are available at Yanhao Flange in class 900.  The ANSI flanges in the class 900 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 900 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 1500 Flanges

    ANSI flanges are available at Yanhao Flange in class 1500.  The ANSI flanges in the class 1500 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 1500 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 2500 Flanges

    ANSI flanges are available at Yanhao Flange in class 2500.  The ANSI flanges in the class 2500 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 2500 are provided by Yanhao Flange as forgings unless otherwise specified.

Products
Blind Flanges
Lap Joint Flanges
Slip On Flanges
Socket Weld Flanges
Threaded Flanges
Weld Neck Flanges
Contact US
+86 13313073735
[email protected]
Mengcun Hui Autonomous County, Cangzhou City, Hebei Province

ANSI Standard Flanges

Yanhao provides several ANSI Standard Flanges, which generally be used for the removable connection of plastic pipes as well as the transitions between plastic fittings and devices (valves, pumps). Our delivery schedule covers ANSI flanges (welding neck / blind flanges / slip on / threaded flanges / socket welding flanges) according to B16.5, B16.47, B16.9, B16.36, B16.28, B16.48. ANSI flanges are available in pressure ratings 150/300/600/900/1500/2500 lbs. Our product portfolio includes the ANSI standard materials TP304, TP304L, TP321, TP316, TP316L and TP316Ti. The dimensions range from ½ “to 40”. We are also happy to supply special materials, special approvals and flanges according to drawings on request. Contact us.

What Is ANSI Flange?

What is ANSI? ANSI is the acronym for the American National Standard Institute, which is the certification body responsible for standardizing various products, services and systems in the United States. It is a private, not-for-profit organization (headquarters in Washington) that oversees the development of standards for products, services, processes, systems, and employees of the United States. Its objective is to improve the standard of living and the competitiveness of American businesses through standardization.

What is ANSI Flange standard? ANSI Flange standard is the official standard for ANSI Class Pipe Flanges and Flanged Fittings in which the dimensions, surface properties, shape of the sealing surface, marking and the material as well as the technical delivery conditions for flanges are specified.

ANSI Flanges, manufactured based on standards developed by organizations, are the standard flanges designed with specific rules and conditions stated by ANSI standards. The ANSI Flange dimensions are determined by the size of the pipe and the class of the pressure, which are required for the flange to be able to withstand water pressure and heat.

ANSI flange Specifications Indicate:The flange pressure class (in LB) , size of the pipe (in inches), the number of bolts, the flanges diameter (in inches), the diameter of the bolts, the diameter of the hole, the bolts are placed into and the measurement of the bolts circle (in inches)

ANSI Flanges Standard & Specifications

  • ANSI Standard Types: ANSI B16.5, B16.47, B16.9, B16.36, B16.28, B16.48
  • ANSI Standard Flange Dimensions & Size: Class 150, 300, 400 (rarely), 600, 900, 1500, and 2500 LB – NPS 1/2”to NPS 24”
  • ANSI Pipe Flange Types: Slip-On Flange, Weld Neck Flange, Blind Flange, Lap Joint Flange, Threaded Flange, Socket-Weld Flange
  • ANSI Flange Materials & Grade:
  • Carbon Steel: ASTM A105, ASTM A350 LF1/2, ASTM A181
  • Alloy Steel: ASTM A182F1 /F2 /F5 /F7 /F9 /F11 /F12 /F22
  • Stainless Steel: ASTM A182F6 /F304 /F304L /F316 /F316L/ F321/F347/F348
  • ANSI Class Flanges Material Grade: Forged or cast, unless otherwise specified
  • Temperatures: Pressures from -20 (degrees, Celsius) to 200 (degrees, Celsius)
  • ANSI Flange Face Types: Flat Face (FF), Raised Face (RF), Ring Joint (RTJ), Tongue and groove (T&G), And Male and Female type

ANSI Flanges Application Industries

ANSI standard flanges widely used in many industries around the world, including:

  • Chemical, Oil & Glass assemblies
  • Mining industry (Fire protection services)
  • Power industry (plants and the nuclear power)
  • Construction (Waterworks and municipal pipe systems)
  • Water Treatment (Heating systems and heat exchangers)
  • Food processing and manufacturing (Plumbing and mechanical systems)
  • And other valves, vessels, and industrial pumps
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