forging steel tank stub flange weld neck 150# steel flange types
Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe. This type of joint connection is Speedy and simple but not suitable for high presser and temperature applications. Threaded Flanges are mostly used in utility services such as air and water.
The blind flange is a blank disc with bolt hole. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. Blind flanges are also used as a manhole cover in the vessel.
Slip on flanges
Slip-On flange has a hole with matching outside diameter of pipe from which pipe can pass. The flange is placed on pipe and fillet welded from both inside and outside. Slip-On Flange is suitable for low pressure and temperature application. This type of flange is available in large size also to connect big bore piping with storage tank nozzles. Normally, these flanges are of forged construction and are provided with the hub. Sometimes, these flanges are fabricated from plates and are not provided with the hub.
Weld neck flange
Weld neck flange are most widely used flanged in process piping. It gives the highest level of joint integrity due to Butt-welded with a pipe. These types of flanges are used in high pressure and temperature application. Weld neck flanges are Bulky & costly with respect to other types of flange.
We can produce Amercian Standard, German Standard, Italian Standard, European Standard, Chinese Standard flanges, also offer all kinds of non-standard flanges according to you drawings, diameter ranging from DN15 to DN3000, press rate up to 2500LBS. Flanges are made of carbon steel, stainless steel, alloy steel, duplex ferric-austenitic steel.
|American Standard||ASME B16.5,ASME B16.47,ANSI B16.5,API605,AWWA C207|
|Japanese Standard||JIS / KS 5K / 10K / 16K / 20K / 30K|
|British Standard||BS4504 PN16 / 25 / 40,BS10 TABLE E / TABLE D|
|Italian Standard||UNI 2253,2254,2276,2278,2281,6084-6093|
|China Standard||GB/T 13402-92,GB/T9112-9124-2000,HG5010-5028|
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Raw material inspection(5steps)- Raw materials testing is to ensure the raw material conforming to the order requirements.
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