Blind Flange
Austenitic / Duplex Steel / Nickel Alloy / Cobalt Alloy
Blind Flange:
Blind flange is a solid disk used to block off a pipeline or to create a stop. Similar to a regular flange, a blind flange has mounting holes around the perimeter and the gasket sealing rings are machined into the mating surface. The difference is that a blind flange has no opening for fluids to pass through.
ASTM A815 / ASME SA815 304/304L Pipe Fitting Blind Flange
Blind Flange Product Description:
| 1 . Commodity: Welding Neck, Blind, Slip-On, Lap Joint, Socket Weld, Threaded, Spectacle Blind, etc |
| 2 . Surfacing: RF, FF, RTJ |
| 3 . Materials: Stainless Steel, Duplex Steel, etc |
| 4 . Standards: ANSI B16.5, ANSI B 16.47 |
| 5 . Tolerances: according to the specification or customer’s request and drawings |
| 6 . Applications: Pipe connection, Piping project construction, etc |
7 . Pressure class : 150 - 2500lbs; class 150-class 2500 |
Blind Flange Advantages
a) Superior surface finish
b) Better mechanical property
c) More precise dimension
d) Perfect inspection method and inspection equipment
Blind Flange Test:
NTD ( Ultrasonic test, Eddy Current test )
Mechanical Test ( Tension Test, Flaring Test, Flattening Test, Hardness Test, Hydraulic test )
Metal Test ( Metallographic Analysis, Impact Test - High/low temperature )
Chemical Analysis ( Photoelectric Emission Spectroscopic )
Manufacturing Experience
Plant Area
Max Diameter of Welded Pipe
Annealing Furnace Length
Nickel Alloy
NI-MO: N10001,N10665,N10675...
NI-CR-MO: N10276,N06022,N06035,N06455,N06002...
NI-CR-MO-CU: N06030,N06200,N08031,N08825,N08020...
NICR-MO-W: N06230...
NICKEL: N02200,N02201...
NI-CU: N04400,N05500...
NI-CR-FE: N06600,N06601,N06690,N08800,N08810,N08811...
NI-CR-MO-NB: N06625,N07718...
Austenitic
304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L...
Duplex Steel
31803, 32205, 32750, 32760...
Cobalt Alloy
Alloy 188/ UNS R30188, Alloy L-605/ UNS R30605, Alloy S-816, Alloy 6B, UMCo50, FSX-414, MP-159...
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