Blind pipe flanges are pipe flanges used to tape the end of a piping system openings to prevent flow. Blind pipe flanges are commonly used for pressure testing of the pressure flow of liquids or gases through a pipe or vessel.
Standard: ANSI B16.5 ,DIN25762766,DIN2632-2638
Pressure: NP0.6-32MP2, 150lb-1500lb
Forming Type: Forged
Size: 1/2”-48”(DN10-DN1200)
– Carbon Steel blind flange: 
ASTM SA/A105(N),C22.8,ST37.2,A516 GR60/70,ASTM SA350 LF2,ASTM SA694 F42/46/52/56/60/65…
– Stainless Steel blind flange: 
Grade: 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L, 317, 317L, 321, 347, 347 H, 409, 410, 410S, 420, 430L
– Duplex Stainless Steel blind flange: 
ASTM A182 F51/F53/F55/F60…
– Alloy Steel blind flange:
ASTM A182 F1/F5/F9/F11/F22/F91…
– Surface Treatment: Yellow/Black Coating, Anti-Rust Oil