The bolt can be calculated as the most needed in the pre tightening state and operation state.

Coil flanges can be sticky material with little or no flow characteristics and applications to stay in place.

Introduction to the rolling flange is used to cut the strip and then roll into a circle process called roll system, and more for the production of some large flange. Rolling after the success of the welding process and then flatten, then the waterline and bolt hole.

Flange in the use of a certain principle of work, according to a certain production process and technical production and use.

Corrosion resistance in the atmosphere, if it is industrial atmosphere or heavy pollution areas, it is required to clean in a timely manner to avoid corrosion

Large coil flange is a flange in the machinery industry in general use and promotion, get the user's praise and favor

The price of a flange is usually lower than that of the coil, and this effect is a popular option for our customers. However, the customer should keep in mind that this initial cost savings can be reduced by the proper installation of additional costs for the two fillet welds. In addition, the coil to the flange of life expentancy is higher than the stress of the stress of the flange.

Electric standard flange on the open and close the valve stem rotation is not only to enhance the operation of the valve stem packing is not easy to damage, sealed and reliable. 

Before the assembly, the valve section must handle the following procedures

Mainly used for welding flange flange and pipe welding counterparts, reasonable structure, strength and stiffness.

Casting flange can only be used in 16Kg, normal conditions used in the 10Kg or 6Kg pipe.