MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End
Size: 4 Inch (DN100)
Material: Super Duplex 2507 (UNS32750), etc
Super duplex stainless steel 2507 (UNS32750) Chemical Composition %
|Grade||Chemistry (Typical Values)||Mechanicals|
ASME B16.9, MSS SP-43, HG205099, HG20621,
GB/T12459-2005, GB/T13401, SH3408-96,etc.
Type A, Type B,Type C
Lathe finish&Abrasive blasting
304, 304L,304H, 316, 316L,309S,310S, 321,321H,347H,316Ti
Super duplex steel
UNS32750 GR2507 SMLS Stub
What are they?UNS32750 GR2507 SMLS Stub Ends are fittings used in place of welded
flanges where rotating back up flanges are desired.
They are also called Lap Joints and Vanstone Flared Laps.
How do they work?
A rotating back up flange seats itself against the back surface of
the Stub End. When bolts are added, the clamping action of the
bolts presses the rotating back up flange against the back of the
Stub End. The gasket surface of the Stub End then presses against a
gasket and another gasket surface providing joints like standard
flange joints. The seal is made by the gasket surface of the stub
end alone, the flange only provides the clamping pressure on the
Since Stub Ends are made from material compatible with the designed
piping system, back up flanges do not have to be made from the same
material. The flange can be made from less expensive material
because it never comes in contact with the process fluid.
UNS32750 GR2507 SMLS Stub Ends' Types
UNS32750 GR2507 SMLS Stub Ends are typically manufactured by two
methods. Type A & B Stub Ends are made similar to forged
fittings such as Elbows and Flanges. Type C Stub Ends are made by
forming pipe to the desired dimensions.
UNS32750 GR2507 SMLS Stub Ends are available in two standard
lengths, MSS and ANSI.
UNS32750 GR2507 SMLS Stub Ends are normally provided with a
standard weld bevel
UNS32750 GR2507 SMLS Stub End dimensions are found on our fitting
Type "A" - Type "B" - Type "C" - Type "CS"
Where can we find the high quality MSS SP-43 ASTM A815 UNS32750
GR2507 SMLS Stub End.
You can visit this website: www.yaang.com (Zhejiang Yaang Pipe
Industry Co., Limited).
If any inquiry, please feel free to contact by email