Our company is a company specializing in the production and sale of steel pipe and pipe fittings. The company mainly produces and manages two parts of steel pipe and pipe fittings. Our products are widely used in petroleum, chemical industry, aerospace, power plants, energy, environmental protection, boilers, heat exchangers, ships, subways, pharmaceuticals, breweries, buildings, engineering transformation and so on.
Concentric reducer also called concentric reducer, is used to connect the different sizes of the pipe, it is generally divided into concentric different diameter pipe and eccentric different diameter pipe two, when the projection of different diameter pipe set up after the two port is concentric circles, it is called concentric reducer, and projection eccentric reducer is a small round cut inside the circle.
The quality of concentric different diameter pipes should be in accordance with the provisions of the current national standard "steel butt welded seamless pipe" GB/T 12459-2005, and should meet the following requirements:
1) the roundness of concentric reducing pipe should not be greater than 1% of the corresponding outer diameter, and the allowable deviation is + 3mm. The center line of concentric reducer can be coincided, and the allowable deviation of its eccentric value is + 5mm.
2) there should be no cracks in the appearance of the concentric tube, and the thickness of the heavy skin and the wall thickness should be greater than the wall thickness of the end pipe of the large diameter.
Hebei long Xu pipeline equipment manufacturing Co., Ltd. is looking forward to working with you to work together.