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

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

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

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Product Detail
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
Contact Supplier
ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48
ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48
ASTM A182 F53 Super Duplex Steel Spectacle Figure Eight Blind Flange B16.48

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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