1. Hot-Push forming Hot-push elbow forming process is the use of special elbow push machine, core mold and heating device, so that the billet on the die in the push machine pushing forward movement, in the movement by heating, expanding and bending forming process. The deformation characteristic of the hot-push elbow is to determine the

High-pressure pipe fittings are used in specific environment such as high-pressure steam equipment, chemical high-temperature high-pressure pipelines, power plants and nuclear power plant pressure vessels, high-pressure boiler accessories. Pipe fittings are the general designation of parts that connect, control, change direction, shunt, seal and support in piping system. Pipe Use classification 1. Pipe fittings For

The quality of different-diameter tube high-pressure pipe fittings should conform to the current national standard “steel butt welded Seamless pipe” GB/t 12459-2005, the roundness of the reducer should not be greater than the corresponding end diameter of 1%, and allow the deviation of the ±3mm; the permissible deviation of the size of the reducer shall

Flange is a disk-like part, in the pipeline engineering is the most common, flanges are used in pairs. In piping engineering, flanges are mainly used for connection of steel pipes. In the need to connect the pipeline, a variety of installation flange, low pressure pipe can use wire flange, more than 4 kilograms of pressure

Langfang Ding Yang flange pipe fitting Co., Ltd specializes in producing insulating flanges and stainless steel carbon steel pipe. Tee pipe fittings are usually used in construction, power, shipbuilding, chemical and other industries. Different types of tee fittings have their own shortcomings and advantages. Different types of three-way pipe fittings have different characteristics, to distinguish between

Now the common standard of carbon steel flange is generally divided into: sy/t5037-2000 (Ministry of Standard, also known as ordinary fluid pipeline with spiral seam submerged arc welded steel pipe), gb/t9711.1-1997 (GB, also known as the oil and gas industry transportation pipe Delivery Technical conditions Part I: A-class steel pipe (to the current requirements of

Flange is a disk-like parts, in the pipeline engineering is the most common, flanges are used in the pipeline engineering, stainless steel flange is mainly used for the connection of steel pipe. In the need to connect the pipeline to install a flange, low pressure pipe can use wire flange, more than 4 kilograms of

Cast carbon steel flange internal organization loose, uneven, strength, quality is difficult to ensure that the forging type is consumable, energy consumption, high cost, and disc, neck junction easily produce stress concentration and influence strength, rolling type can avoid the above problems. Hole Design Because the flange in the rolling process is a continuous rolling

High quality steel should be used on alloy steel flange. That is, the material should be followed by the letter A, such as 35CrMoA, 25CrMoVA according to the structure of the different types of bolts can be divided into six-angle head bolts and double-headed bolts (also known as stud) two types, and the two-head bolts

Gaskets are generally divided into non-metallic gaskets and metal gaskets, large diameter stainless steel flange can be stacked with two pieces of PTFE to bring entanglement, because the flange in welding and processing will sometimes have deformation, flange winding can be used to adjust, if used in the air pipeline also to be entangled, otherwise