User talk:Hello20061016

Blind steel flange

Descriptions: The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes.

Blind flange Materials:

Carbon Steel: ASTM A105

Stainless Steel: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L,

Duplex stainless steel: UNS S31803, 2205,

Super Duplex stainless steel: UNS S32750

Size: 1/8" NB TO 48"NB.

Rating: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#

Features of blind flanges:

Blind flanges are sometimes supplied with NPT fittings which allow pressure test connections to be fitted.

They are used to blank off the ends of pipe.

They are also used to blank off the ends of valves and pressure vessel opening.

Considering factors like internal pressure and bolt loading, blind flanges, especially in the larger sizes, are the most highly stressed of all types of flanges.

Since the maximum stresses in a blind flange are bending stresses at the center, they can safely be allowed to be higher than in other types of flanges.

About steel flange,any need,please contact me freely. Mr. Michael Chang Qingdao Kum Kang Fittings Co., Ltd.