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ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48

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ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48

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Brand Name : YUHONG

Model Number : ASTM A105, ASTM A 181, ASTM A 182, GR F1, F11, F22, F5, F9, F91

Certification : API,PED,ABS

Place of Origin : CHINA

MOQ : 1PC

Payment Terms : L/C, T/T

Delivery Time : 7DAYS

Packaging Details : PLYWOOD CASE,BUNDLE,PALLET

TYPE : SPECTACLE BLIND,FIGURE EIGHT BLIND FLANGE

MATERIAL : ASTM A 105, ASTM A 181, ASTM A 182, GR F1, F11, F22, F5, F9, F91

SURFACE : Black Painting Or Other Color Coating

PACKAGE : PLYWOOD CASE,PALLET

STANDARD : B16.5,B16.47

PRESSURE : 150#,300#,600#...

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ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48

A Spectacle Figure Eight Blind Flange (commonly called a Spectacle Blind Flange) per ASME B16.48 is a piping component used to either fully open or fully close a pipeline. It consists of two discs connected by a small section of metal—one solid plate (to block flow) and one with a hole (to allow flow). The flange is typically rotated to switch between open and closed positions.

Key Features:

  • Standard: ASME B16.48
  • Material: Carbon steel, stainless steel, alloy steel, or other specified materials
  • Pressure Ratings: 150#, 300#, 600#, 900#, 1500#, and 2500#
  • Sizes: Typically ranges from ½” to 24”
  • Application: Used in pipelines to isolate sections for maintenance, testing, or system modifications

A Spectacle Blind Flange is a safety device used in piping systems to either allow or block flow.

It consists of two metal discs connected by a bar:

  • One side is a solid blind (to stop flow).
  • The other side is a ring spacer (to allow flow).

It is typically rotated between these two positions during maintenance or system isolation.

Materials: Carbon steel (ASTM A105), stainless steel (ASTM A182 F316/F304), alloy steel, duplex, and special alloys
ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48

Applications:

  • Temporary or permanent pipeline isolation
  • Shutdowns, maintenance, or hydro testing
  • Used in industries like oil & gas, petrochemical, and power plants

Test Certificate

Manufacturer Test Certificate as per EN 10204 / 3.1B

ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48


Product Tags:

B16.48 Spectacle Figure Eight Blind Flange

      

ASTM A182 F53 Steel Flange

      
ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48 Manufactures

ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48 Images

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