RF 600# A105 ANSI B16.48 Spectacle Blind Flange
Definition Of Spectacle Blind Flange:
A spectacle blind – also known as a figure-8 blind – is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets.
A spectacle flange is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. It is different than a valve in that the blind is a permanent or long term isolation device.
A spectacle flange is machined from a single piece of metal that is cut to match the pipe size, fit between two pipe flanges and requires an additional gasket when it is installed. Also, the bolts will need to be lengthened depending on what piping class and size blind is used. The thickness of the spectacle flange is specified based on the line pressure and pipe size.
Data Of Spectacle Blind Flange:
Certificate:API,CE,ABS,ISO,PED Certificate Approved
Marking:As per customer’s request
Inspection:Accept Factory in-house or third party inspection
Advantage:Long Service life,High Quality,Reasonable Price
Export:All over the world
|Type||Weld Neck,Slip On,Socket Weld,Threaded,Lap Joint etc|
|Face||America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
|Standard||ASME/ANSI B16.5,ASME B16.47,ASME B16.36,AWWA C207.DIN 2527,2573,2576,2631,2632,2633,2634,2635,2566,2642.EN 1092,BS 4504,JIS B2220,GOST 10820,10821 etc.|
|Material||Carbon Steel:ASTM A105,A350 LF2,SS400,P235GH,P250GH,C22.8,Q235,20#,16Mn.|
|Stainless Steel:ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.|
|Alloy Steel:ASTM A694 F42,F46,F52,F56,F60,F65,F70,A182 F5,F9,F91,F12,F11,F22 etc|
RF 600# A105 ANSI B16.48 Spectacle Blind Flange Product Show: