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1)BS4504 101 105 103 112 113 111,

2)the material can be S235JR,A105,P250GH,P245GH.

3)the dimension will be from DN15-DN2000

Q: Do I need flanges for rubber joints?: In this case, 4 flanges are required for a productGongyi Kin Kun water supply equipment factory produces rubber soft joints all year round

Q: How many bolt holes and how big bolts are there in all sizes of 16 kg flanges?: You said this decision can be empty and bolt by bolt much, because the flange 16 kilograms he represents not only much, such as to the decision of the 59 flange bolts and how much air is generally 59 bolts, flange 4 bolt space using 14 bolts, 59. All 4 bolts empty more than 59 is still some 4 empty, there is 8 according to the size of the flange bolt empty it is not the same, and the use of bolts are based on flange to determine the size of the bolt can also use a smaller, bolt general equipment use 4.8 hardness the special equipment used is 8.8 bolt hardness, 16 pound flange generally use 4.8 hardness

Q: How many kinds of flanges do you have? Does anyone know a more specialized classification?: There are many kinds of flange, mainly due to the nominal diameter (A type B type, namely the metric system), nominal pressure, use of structure, material, sealing surface form, connection mode classification (diameter and pressure rating not included) according to the form of: flange welding plate flange (PL), hubbed flange (SO), neck flange (WN), integral flange (IF), socket welding flange, threaded flange (SW) (Th), welding ring flanges (PJ/PE), ring flanges (PJ/JR); according to the sealing surface form: process surface (RF), convex surface (MFM) and the tongue and groove face (TG), the whole plane (FF) and ring junction (RJ); this does not include the flange; according to the material: cast iron, cast steel, forging, flange, stainless steel flange, Q235 plastic flange etc..

Q: Which flange is the front pipe case flange and the cylinder flange?: The front pipe case flange is the tube part, which is connected with the tube plate.

Q: Is it a flange or a Flange?: 3, according to the mechanical (JB) industry standard: integral flange, welded flange, welding plate flange, butt welding ring loose plate flange, welding ring loose plate flange, flange ring loose plate flange, flange cover.4, according to the national standard (GB): integral flange, threaded flange, flange, butt welding and hubbed flange hubbed socket welding flange, butt welding neck flanges, ring plate flange, butt welding ring loose plate flange, welding ring loose plate flange, flange ring loose plate flange, flange cover.

Q: Flanges of different sizes: If the outer diameter is not big, the bolt hole, the middle diameter and the bore diameter can be unified. If the specifications are different and can not be directly connected, you can use the big head as an excessive.

Q: How many kinds of flanges are there?: 1. The flange is divided into flange, flange, threaded flange, socket welding flange and loose flange according to connection.2. according to the form of flange sealing surfaceFlange in accordance with its form of sealing surface can be divided into flat, convex surface, concave convex surface, tongue and groove surface and ring connection surface. There are 4 standards in our current flanges: National Standard (GB/T), machinery industry standard (JB/T), Sinopec General Corporation Standard (SH) and chemical industry standard (HG). The standard of the sealing surface of the name is different, see the table below the name of the sealing surface.Table cover name contrastSealing surface nameNational standard(GB) chemical industry standards(HG) Sinopec General Corporation standards;(SH) machinery industry standards;(JB)Plane plane (FF) full plane (FF) whole plane (FF) -Convex surface (RF), convex surface (RF), convex surface (RF), convex surfaceConcave convex surface, concave convex surface (MF), concave convex surface (MFM), concave convex surface (MF), concave convex surfaceTongue and groove face, groove face (TG), tenon (TG), tenon (TG), tongue and groove faceRing connection surface, ring connection surface (RJ), ring connection surface (RJ), ring connection surface (RJ), ring connection surface

Q: In building engineering, what is called "flange" means detailed point?: Flange connection is the two pipes, pipe fittings or equipment, first fixed on a flange, between the two flanges, plus flange pad, bolted together, completed the connection. Some pipe fittings and equipment have their own flange, but also belong to flange connection.Flange, threaded connection (wire), flange and welding flange.

Q: What is a flange in machining and why is it named?: Seal points between the two flanges, then fasten with bolts. Different pressure flanges have different thicknesses and use different bolts. Water pump and valve, and in the pipe connection, these equipment parts of the equipment also made corresponding flange shape, also known as flange connection. Any connecting parts that are bolted and closed at the two sides of the plane are generally referred to as flanges, such as the connections of the ventilation ducts, which can be called flanges. However, this connection is only part of a device, such as flanges and pumps connected, it is not good to pump the flange parts. Relatively small, such as valves, etc., can be called flange parts.Flange connection is an important connection way for pipeline construction.Flange connection is the two pipes, pipe fittings or equipment, first fixed on a flange, between the two flanges, plus flange pad, bolted together, completed the connection.

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