Hebei Chiho Pipe Flange Main Material: 304,321,304L, 316,316L, Q235,16Mn application sectors: electricity, oil and gas, petrochemical, chemical, shipbuilding, heating, papermaking, metallurgy, etc. Features: beautiful appearance, smooth surface, acid steel flanges, anti-corrosion, texture and strong performance execution criteria: GB series (National Standard), JB series (mechanical section), HG series (Ministry of Chemical Industry), ASME B16.5 (American Standard ), BS4504 (British Standard), DIN (German standard), JIS (Japanese standard) Hebei Chiho Pipe butt neck collar with loose flange connection defined by a pair of flanges, a gasket and a number of bolts and nuts . Spacer placed between the two flange sealing surface, tighten the nut, the pressure over the gasket surface deformation reaches a certain value, and fill the sealing surface uneven, the coupling does not leak tight. Welding neck collar with loose flange screw connection points (wire tapping) flange and welding flange. Low pressure small diameter wire flange, high pressure and low pressure large diameter are using welding flange thickness and bolt diameter and the number of different connection flange pressures are different. Depending on the level of pressure, the flange gasket flange steel sales also have different materials, from low pressure asbestos gasket, high pressure asbestos gasket to metal pads are. 1. Material classified carbon steel flanges purposes, cast steel, alloy steel, stainless steel, copper, aluminum alloy flange manufacturers, plastic, argon Ge Lek, ppc and so on. 2. production methods can be divided into forged flanges, casting flanges, welded flanges, rolled flange (large number) 3 to produce a standard can be divided into GB (Ministry of Chemical Industry, Petroleum standard, electricity standard) , American Standard, the German standard, Japanese standard, the Russian standard and so on. Steel flange steel flange use _ _ Hebei Chiho Chiho by Hebei Industry Co., Ltd. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) strong, credible, Cangzhou in Hebei forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Chiho into the brilliant and you work for a better future!