Introduction of Slip-on Flange Forging Methods
This technical article introduces us about some main forging methods of slip-on flanges according to the movement of the forging die.
How to Correctly Select Flange
This technical article introduces us in details about that some main ways and methods that we can choose and select flanges correctly.
Thin-walled SS Tube Is Increasingly Widely Used
With the implementation of reform and opening policy and the development of economy, thin-walled stainless steel tubes are more and more popular.
Venezuela's Manufacturer Will Set Up Factories in Cuba
The company is evaluating the factory of the pipeline construction project, thus it is going to set up factories in Cuba.
NDRC: Increase Gas Imports and Oil Reserves in Winter
The National Development and Reform Commission decided to increase gas imports and oil reserves in this winter in the meeting held on November 13.
How to Change Sealing Ring of Large Flanges?
Sealing ring of large flanges produces sealing force under the influence of opposite working pressure, which increases the sealing pressure ratio and sealing ring impacts valve seat. The larger the opposite working pressure, the stronger the sealing force, thus sealing ring and valve seat can be closely linked, achieving two-way sealing.
Flanges are classified into threaded flanges and welded flanges. Low pressure small diameter adopts wire connect flanges, high voltage and low voltage large diameter adopts welding flanges. Flanges of different pressure and thickness connect bolts of different diameter and number.
When large scale flanges seal, the rigidity of valve clack is great and not easy to deform. The valve clack of butterfly valve more than 12 discs is circulation planar truss structured with small flow resistance and good rigidity, not easy to deform under opposite working pressure, keep the sealing ring from disconnecting with the best seating owing to deformation of valve clack, ensuring the sealing effect of sealing ring.
