China High Pressure Flange B16.5 1500# WN RTJ B16.5 1500LB WN RTJ SCH:S10,S20,S30,S40,S60,S80,S100,S120,S140,S160,XS ,XXS In flange design, sealing design is an important part, because the sealing failure of pressure vessels, often is not the strength of the connector is not enough, and more cases are caused by bad sealing leakage, in order to make the normal operation of chemical equipment, must be carefully sealed design. The sealing design of flange connection includes the discussion of sealing principle, the factors affecting sealing, the choice of sealing surface and gasket, the strength calculation of screw bolt, and of course the type of flange sealing surface. In the middle and low pressure chemical service and pipeline, commonly used flange sealing surface type has the following three: plane type sealing surface design is simple, easy to manufacture, most of the use of peace gaskets, poor sealing performance, suitable for pressure is not high, non-toxic medium occasions, Concave-convex sealing surface is composed of a concave surface and a convex surface. When the concave-convex surface is squeezed, better sealing effect can be obtained (compared with the planar sealing surface). Weld Neck Flange Specification: Surface TreatmentAntirust Paint, Oil Black Paint, Yellow Transparent, Hot Dip Galvanized MateralStainless Steel, Alloy Steel, Carbon Steel Manufacturing processCutting, Heat treatment, Die Forging/Free Forging, CNC Machining Manufacturing StandardsANSI B16.5 Material Grades: Stainless SteelA 182F 304, 304L, 304H, 316, 316L, 316Ti, 321, 321H, 347, 347H Carbon SteelASTM/ ASME A 105, ASTM/ ASME A 350 LF 2 Alloy SteelASTM / ASME A 182, ASTM / ASME F5, F9, F11,F22, F 91 Weld Neck Flanges in three types of paintings: 鈾?Anti-Rust Oil Painting 鈾?Yellow Golden Painting 鈾?Black Painting 鈼廢sage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.China High Pressure Flange website:http://www.goldenoceanflange.com/high-pressure-flange/
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