化工设备资料（Chemical equipment information）.docVIP

化工设备资料（Chemical equipment information） Doc documents may have a poor browsing experience at the WAP end. It is recommended that you choose TXT, or download the source file to the native view. Flange cover type table name Sudden surface (RF) surface (RF) Characteristics that Schematic diagram The surface is a smooth surface and also can be made of waterline. Sealing surface structure is simple, easy to machining, and then (the appended drawings for anti-corrosion lining. However, this kind of sealing gaskets contact area is larger, the preloaded on both sides of the spacer easy to (a)), is not easy to pressure. Sealing surface is made up of a convex and a concave match, placed on the concave gaskets, can prevent the gasket (attached figure out, so it can be applied to high pressure situations. (b)) sealing surface is composed of tenon and slots, gasket put in tank, will not be crowded. The gasket can be narrower, and the bolt force needed to tighten the washer is correspondingly smaller. Even when used for high pressure, bolt size is not too large. Therefore, it is easier to obtain good sealing effect than the above two sealing surfaces. Sealing surface defect is knot (illustrated structure and manufacturing complex, replace the gaskets are difficult in the tank. In addition, the groove part is easy to damage, (c)) in the process of dismantling or transportation should be attention. The cover of mortise groove is suitable for flammable, explosive, poisonous medium and high pressure. When the pressure is small, it can be well sealed even when the diameter is larger. (figure (d) and (e)) Concave convex surface (MFM) Mortise surface (TG) mortise surface (TG) The full plane seal is suitable for smaller pressure situations (PN is less than 1.6 MPa); The whole plane (FF) full plane (FF) and ring joint surface is mainly used for the neck butt welding flange and integral flange. The applied pressure range is the joint surface (RJ) (6.3 MPa less than or equal to 25.0 MPa). (F