Which appliances marked concentric size head Good | Wan Hai fittings selling 10 years | Hedong District, head size

 Hebei Wan Hai pipe factory is ideally situated in the pipe capital. Is the county's leading enterprises. Main carbon steel head size, stainless steel, alloy concentric, eccentric reducer manufacturers selling 304 GB head size, quality and quantity, the price is reasonable. Ministry of standard diameter pipe GD0506 ~ 0507; pressure vessel supporting the flange, tube sheet corresponding standards: JB / T4700 ~ 4707-2000; implementation of national standards (GB / T9112-2000), Department of Mechanical Standard (JB / T81- 1959, JB / T74-1994) 16MN lowest head butt size, petrochemical department standards (SH3406-1996), Ministry of Chemical Industry Standard (HG / T5010-1958, HG / T20592-2009), and so on. Diameter pipe should be consistent with existing national quality standards, size, head size tolerances shall comply with the standard requirements. Roundness head size should not exceed 1% of the respective ends of the outer diameter, eccentric head appearance should not have cracks, heavy leather, thickness should be greater than the thickness of the large diameter end of the pipe, and the tolerance of ± 3mm; concentric size head pipe ends should overlap the centerline direct steel seamless head size, its tolerance for eccentricity value ± 5mm. When the diameter is not itself, is not the time difference between the front and rear diameter, with concentric size head, vapor lock phenomenon may not be so obvious, self-priming pressure change in the absorption process is not so great, so no harm reflected. Generally higher than the intensity of the size of the head of the Longitudinal, can narrow the billet production of large diameter elbow, you can also use the same width of the billet production of different pipe diameters. Seamless concentric size head spot, 16MN standard 355 * 219 low prices Hebei Wan Hai Main Pipe Factory quality head size, diameter pipe, product range, praised by users! Expanding the reduced diameter or size of the head pipe deformation during pressing member, according to fittings of different materials and reducers, to determine the use of cold or hot. Typically, cold as far as possible, but repeatedly cause severe Reduction work hardening, the wall thickness of the case or the uneven thickness of the steel material should be adopted hot pressing. expanding molding is the use of a size smaller than the diameter of the large end of the head tube, with the inner diameter of the die along the enlarged diameter forming tube. expanding process is mainly to solve the case of larger size adjustable head easily formed by necking, sometimes forming materials and products according to the need, the expanding and necking methods combined. qualitative meet US standard ASTM A105 standard appliances which concentric size head Good | Wan Hai fittings selling 10 years | Hedong District head size provided by Cangzhou Mengcun County, 000 sea pipe factory. Cangzhou Mengcun County, 000 sea Pipe Factory (www.czwhguanjian.com) (www.hebftc5.com) Hebei Cangzhou, flanges leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Wan Hai fittings in leadership with the staff warmly welcome all inquiries negotiations to create Wan Hai fittings a better future.