Q:I checked a lot of standards and marked a F1, but I couldn't find the corresponding size in the corresponding manual! Good halo

Only the weld ring loose flange is marked with a higher flange flange height. Moreover, different levels of C in the standard flange thickness has been set to die, your height suddenly face protruding at the flange thickness meet the appropriate process to face, is usually a value of experience, what is the scope of a DN, but the protruding height is not high, are generally small according to DN, increased, increasing

Q:Where are metal flanges usually used?

1, less than five screws, there should be cross wiring2: flammable and explosive place 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 jumper3, according to:I. code for design of GB50074-2002 oil depots14.2.14 in the dangerous area of the pipeline (oil and gas), the following lightning protection measures shall be taken:1 the flange connections of the oil pipeline shall be bridged and shall not be bridged in a non corrosive environment when not less than 5 bolts are connected2 the metal pipe that is parallel to the ground or the groove of the pipe, when the net distance is less than 100mm, the span of the metal line should be not more than 30m., and the intersection distance of the pipe crossing is less than 100mm, and the intersection shall be connected with metal wire

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:Now in chemical, flange pn2.

It does not include the fluctuation pressure of the fluidDesign pressure refers to the maximum instantaneous pressure acting on the inner wall of a pipe system. Generally, the pressure of the work force and the sum of the residual water hammer pressure are usedNominal pressure is to design, manufacture and convenient use, a nominal pressure set artificially. The nominal pressure is the actual pressure unit, "pressure" is commonly known as the Chinese, unit is "Pa" instead of "N".

Q:Flange gasket RF600-6. What does this 6 mean?

Flange gasket RF600-6 in this representation method, several letters and data are defined as:RF corresponds to the form of the normal half surface, and belongs to the RF face flange600: nominal diameter is 6006 representative: this flange pressure rating is 6Bar

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

Q:Taiwan version Ma flange effect, okay?

Although the British GlaxoSmithKline Group subsidiary of the company's production.

Q:What are single plate flanges, short tubes, flanges, short tubes, flanges, three connections, and flanged bends? What is the material? What is it?

Flange GB9119 GB9116 HG20592 elbow GB12459 three pass GB12459

Q:Flange specification PL20 (B)

PL slip on plate 20 is DN (B) is a series of B with diameter of 25 steel which belongs to the national standard or Western Europe

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