Integral flange
1: Manufacturing standards: national standard, American standard, Russian standard, Japanese standard, German standard, European standard, electric standard, chemical standard, and so on.
2: Usage: Widely used in natural gas, electric power, petroleum, chemical industry, industry, pharmaceuticals, pressure vessels, and so on.
3: Processing methods: high-precision CNC lathe turning, ordinary lathe fine turning, argon arc welding, and other processing
4: production process: professional whole forging, forging manufacturing, the production process is mainly divided into forging, casting, cutting, and rolling the four kinds of
Integral flange is a kind of flange connection. It is also a kind of steel pipe flange with neck butt welding. The materials are carbon steel, stainless steel, alloy steel and so on. In the domestic standards, IF is used to indicate the integral flange. Mostly used in pipelines with high pressure. Production process is generally casting.
In the flange type is to use a "IF" to indicate the type of integral flange. Generally, it is raised face (RF), and if it is used in flammable, explosive, highly and extremely hazardous working conditions, the sealing surface form of the convex-concave face (MFM) and tongue-and-groove face (TG) can be selected in addition to the RF surface.
1: Material Classification
Carbon Steel: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70;
Alloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ, 35CrMoV, 45CrMo, etc.
Stainless steel (Stainess Steel): ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8
2：Manufacturing standards: national standard, American standard, Russian standard, Japanese standard, German standard, European standard, electric standard, chemical standard and so on.
3：Usage：Widely used in natural gas, electric power, petroleum, chemical industry, industry, pharmaceuticals, pressure vessels and so on.
4：Processing methods: high-precision CNC lathe turning, ordinary lathe fine turning, argon arc welding and other processing
5: production process: professional whole forging, forging manufacturing, production process is mainly divided into forging, casting, cutting, rolling the four kinds of
Relevant difference
Neck butt welding flange and integral flange are used butt welding welding method, all have a long neck, how to distinguish between neck butt welding flange and integral flange from the appearance of size and use? From the appearance, the overall flange pipe end is thicker than the butt welding flange pipe end, and the overall flange inner diameter is the same as the nominal diameter except for PN1.6MPa, DN450 and above. Integral flange neck height is high, the thickness of the wall thickness is relatively thick, with neck flange reference standard can be seen. From the application point of view, the overall flange is connected to the equipment with the flange, such as the flange on the valve, this flange and the valve is a whole, not by welding connection. It is mostly used in the manufacture of equipment, pipeline design is almost not used. Butt-welding flanges with necks are used in conjunction with valves, pumps and other equipment, welded to the pipeline, the tail interface size and the corresponding pipe diameter, wall thickness, can be directly welded to the connection.
Installation matters
1, before the installation of the valve, to confirm that the valve meets the design requirements and relevant standards.
2、When handling and installing the valve, beware of bumping and scratching accidents.
3, before installation, the internal pipeline should be cleaned to remove iron filings and other impurities, to prevent the valve sealing seat entrapment of foreign objects. In addition, the installation of the valve should be closed.
4, when lifting the valve operation. Valve should be lifted correctly in the designated lifting position, not to make the valve only in the case of local force lifting or traction.
5, in the installation of the valve, to confirm the media flow direction, installation form and handwheel position in accordance with the provisions.
6, flange connection valve installation. Valve and piping flange surface should be free of damage, scratches, etc., and keep clean. Especially when using metal gaskets (oval or octagonal cross-sections), the flange groove and the gasket should match, to be coated with red Dan to match the research to ensure that its sealing status is good. The perpendicularity of the flange surface on the piping and the centerline of the piping and the error of the flange bolt hole should be within the permissible value. Valve and piping centerline should be consistent before installation.
Conclusion: Our products through the international quality system certification.
We provide you with reasonable overall integral flange price under the premise of quality assurance. Welcome to place an order
