Stainless Steel Lap Joint Flange 4 Bolt Hole For Petroleum /
What we can make:
|Stainless steel lap joint flange|
304,304L,316,316L,321 ,310S,904L,S31803,F51and so on
GB,JIS,BS,DIN.ANSI,GOST and Non standard
Slip-on flanges, Blind flanges, Lap joint flanges, Welding neck
flanges,Plate flange,Socket welding flanges and Treaded flanges
class:150 300 400 600 900 1500 and 2500, pn :6 10 16 25 40 64 and
160 ,5K-40K and so on
FF ,RF, LJ, FM ,R.T.J ,R.J and so on .
according to client's requirement.
not less than ±8% of normal wall thickness.
Function of different types of flange:
- Weldneck flanges create a smooth weld matching the thickness and
bevel of the pipe. With a diameter that matches the inside of the
pipe, they work by transferring pressure from the flange to the
pipe. Typically used for high-pressure applications, weldneck
flanges are the most commonly used flange style.
- Threaded Pipe flanges are unique and beneficial because there is no
need to weld them to the pipe. Instead, they have an outer thread.
These are most commonly used for small diameter projects with high
- Slip-On flangesare the least expensive type and come in large or
small sizes. They have a diameter slightly larger than the pipe,
allowing them to easily slip directly over the pipe. After slipping
on , they are then also fillet welded. The two types of slip-on
flanges are the ring and hub flanges, differing by size
- Lap Joint flanges are typically used in conjunction with either a
stub end or taft. Because it is easily assembled and aligned, this
type of flange should be used in low-pressure applications or those
that require frequent reassembling.
- Blind flanges, also known as blanking flanges, are used to seal off
pipelines, pumps or valves to prevent flow. They are suitable for
testing the pressure of liquid or gas flowing through a pipe and
can sometimes be sued as an inspection cover. It is easily
manageable and can be reversed to allow for expansion.
- Socket Weld flanges are used in high pressure, smaller pipe
applications. Here, the pipe is inserted into the socket and fillet
welded at the top allowing for a smoother fluid and gas flow
through the pipe.
- Ring-Type Joint flanges can help in high-pressure applications to
prevent leaks. These flanges have a unique groove that can be
compressed onto a Slip-On, Blind or Weldneck flange. This will
further allow the pipe to withstand extreme pressure and