Non woven fabric slitting machine note
1) installation location, height, must meet the design requirements of the import and export orientation, should be firmly screwed tight.
2) all kinds of manual valve pipe insulation installed in the handle are not down.
3) valve must be installed prior to visual inspection, the valve plate should be consistent with the provisions of GB 12220 existing national standards, “universal valve logo”. The strength and sealing test should be carried out before the installation of the valve which is more than 1 MPa and the valve is cut off on the main pipe. In strength test, the test pressure is 1.5 times of the nominal pressure, and the duration is not less than 5min. The valve shell and packing should be qualified without leakage. During the sealing test, the test pressure is 1.1 times the nominal pressure. The duration of the test pressure should be in line with the JB/T 9092 standard, and the valve sealing surface is no leakage.
4) between the valve flange and pipe flange design by piping installed gasket.
5) non-woven belt drive mechanism of the cutting machine, according to product instructions for the installation.
Features: (1) the fluid resistance is small, and the full diameter ball valve has no flow resistance. (2) the structure is simple, the volume is small, and the weight is light. (3) closely dependable. It has two sealing surfaces, and the sealing surface material of the ball valve is widely used in all kinds of plastics at present. It is well sealed and can be fully sealed. It has also been widely used in the vacuum system. (4) has the advantages of convenient operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.