BS4504

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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: What are the common materials and grades of aluminum alloy flanges?: The aluminum alloy flange is a connecting part between the pipe and the pipe, used for the connection between the ends of the pipe. It is also used in the flange of the equipment entrance and exit. It is used for the connection between the two equipments, such as the reducer flange. Flange connection or flange joint means that the flange, the shim and the bolt are mutually connected as a group of three detachable sealing structures.

Q: What's the flange body?: Flanges (Flange) are also called flanges or flanges. The flange is the part that connects the pipe to the pipe and is connected to the end of the pipe.

Q: WN, SO, BL, TH, LJ and SW are the abbreviations of what words are. How do you translate Chinese? Class 150 is the stress level. Does that mean the pressure is 150 Bar? Thanks: TH [threaded neck flange]LJ is a loose flange, which is no longer available in the new standard in 2009 and has been modified to [LF/SE, welded ring, loose flange]SW is the socket weld flangeClass 150 is the stress level in the American ASME standard system,China's Ministry of chemical industry standard cited the European and American standards system, so the introduction of this pressure rating systemClass150=PN2.0= nominal pressure is 2.0MPaClass300=PN5.0= nominal pressure is 5.0MPaWait, waitBar is the unit of pressure, and 1Bar is approximately equal to 0.1MPa,Landlord can push like this

Q: Flange valve Q41F-16C/P/R mark, specific meaning?: Q- ball valve, 4- flange, 1- through type, 16- nominal pressure 16 kg, c- cast steel, p- stainless steel

Q: Can the aluminum flange 6061 and the aluminum tube 6063 be welded directly? Will there be such a fracture?: Of course, it can be welded, as long as the welding process is in place, there is no problem.

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: Can the equipment and pipe be directly connected between the pipe and the pipe, flange or welding?: Generally do not directly connected, or wire, or flange connection, also is the live connection, a connection is commonly used in the boiler, is expanding, but the general is the expansion of the boiler furnace tube, small tonnage, large tonnage, now commonly used welding connection.Pipe fittings and fittings can be directly connected by wire, flange, buckle joint, welding, etc..

Q: What are the advantages of a flanged plunger valve?: Advantages of flanged plunger valves:In 1, the flange valve in the plunger and the seal ring used between the interference fit, by adjusting the gland in the flange bolts, the lateral force and the valve body sealing ring compression product in cylindrical hole surface and the plunger seal, thus ensuring the sealing performance of the valve, to prevent the internal leakage, and valve opening moments small, can realize the rapid opening and closing the valve;2, because the sealing ring adopts the strong rebound resistance and the abrasion resistance of the non-toxic new sealing material, has a long-term high temperature, high pressure without losing elasticity, so the sealing performance is reliable and durable.Extension of knowledge point:Flange plunger valve by the valve body, valve cover, stem, plunger, hole frame, ring, hand wheel and other components. When the hand wheel rotates, the plunger is driven to move up and down in the middle of the hole frame through the valve stem to complete the opening and closing function of the valve. Currently, flanged valves are widely used in petroleum, chemical, chemical, gas, gas, liquefied petroleum gas, HVAC and general industries

Q: The equipment itself, metal, is the conductor. Why do we have to do the cross connection at the connecting flange? A little more detailedFlange is bolted through, you say that the anti - corrosion treatment, that is, paint what, but why did the anti-corrosion treatment, but it is easy to spark it? The pipeline carries natural gas. For example, say thank you: Inflammable and explosive places is to prevent power leakage and electrostatic spark using conductive metal will better connect the two flange reliable, pipeline grounding, flange generally corrosion caused by poor contact is easy to produce sparks, in order to prevent the accident of flange jumper.

Q: RJ what flange is the sealing surface?: RJ is the flange ring connection surface.Flange sealing surface type:Full plane FFProjection RFConvex MConcave FTenon face TGroove surface GRing joint surface RJGeneral concave convex MFTongue and groove face TG

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