Connect the valve and the rubber soft connection naturally. When connecting, ensure that the output shaft of the rubber soft connection is consistent with the input shaft of the valve, and the outer flanges of the two are parallel. If the concentricity is inconsistent, it will cause the valve shaft to break or the rubber soft connection to wear. In addition, during installation, it is strictly forbidden to hit with a hammer, etc., to prevent excessive axial or radial force from damaging the flange or sphere. Be sure to tighten the mounting bolts before tightening the tightening bolts.
1. Flange pressure of rubber soft connection;
Rubber soft joint flanges can be divided into 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa, 4.0Mpa according to the pressure of the pipeline; these pressure levels are commonly used pressure levels, as well as American standard, Japanese standard, German standard, The pressure rating of the British Standard and other standards. There are holes on the American standard flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. American standard flanges can be formed by casting or by threaded connection or welding. American standard flange connection is a detachable connection. It is to fix two pipes, pipe fittings or devices on a flange respectively, add flange pads between the two flanges, and fasten them together with bolts to complete the connection.
2. Flange standard for rubber soft connection;
Before installation, wipe off the anti-rust oil on the rubber flexible joint flange and the rubber flexible joint joint with gasoline or zinc-sodium water. Its purpose is to ensure the tightness of the connection and the flexibility of operation, and to prevent unnecessary wear. The main function of the flange is to connect the two ends of the pipeline to avoid leakage when the pipeline is connected. This is not so easy to do. The American standard flange is a part that connects the pipe and the pipe to each other, and is connected to the pipe end.
American standard flange connection is an important connection method for pipeline construction. American standard flexible rubber soft joint can be represented by the letters ANSI; German standard flexible rubber soft joint can be represented by DIN; British standard flexible rubber soft joint can be represented by BS4504; Japanese standard flexible rubber soft The joint can be expressed in JIS. Before the valve is connected to the rubber soft connection, the valve shaft keyway should be perpendicular to the tightening bolt.
3. Flange measurement method for rubber soft connection;
In order to ensure uniform force, first screw on the mounting bolts at any diagonal position, but do not tighten, and then screw on the other two diagonal mounting bolts, and then tighten the four mounting bolts one by one. Tighten the tightening bolts. All tightening bolts need to be fixed and inspected with a torque wrench according to the marked fixed torque data. The correct installation between the rubber soft connection and the mechanical equipment is similar to the correct installation between the rubber soft connection and the drive valve. The key is to ensure that the rubber soft connection output shaft is consistent with the concentricity of the driven part of the shaft.