explore ways of stainless steel valve sealing surface grinding

stainless steel valve internal parts usually refers to the disc, seat and stem, but in some cases, it also includes other parts (such as bushings, bolts and nuts Disc, the term 'for most types of valves, generic term called it off. But there are exceptions, such as for plug Industrial Valves, closing a call cock) , the valve sealing surface is mainly refers to disc and seat contact.

stainless steel Industrial Valves sealing surface points two kinds of sealing surface, plane and cone is grinding objects must be conducted in the Industrial Valves manufacturing.

the valve sealing surface grinding method, which has two kinds of manual polishing and mechanical polishing:

the valve sealing surface of the grinding using a simple grinding tool only by hand. Manual grinding generally adopt wet grinding, when in the process of wet grinding to often add thin abrasives, in order to put the dulling the grits from the working surface, and constantly add new grinding grain, high grinding efficiency is obtained. Particularly high requirements for accuracy and roughness of sealing surface, sometimes using pressure sand flat dry grinding.

the valve sealing surface of manual grinding. The sealing surface is located in the valve body cavity, grinding is difficult. Usually used with a square hole disc tool, in the inner chamber seal surface, with a long handle with square head hand to run a grinding disc for grinding movement. Grinding disk cylindrical convex or boot gasket, to prevent local left ring sealing surface in the process of grinding tool grinding caused by uneven phenomenon.

stainless steel valve body sealing plane manual before grinding, tool face should be use kerosene or petrol wipe, and remove the valve sealing surface of flash, burr, and coating a layer of abrasive on the surface of the seal. Tool into the valve body cavity, carefully on the sealing joint, then USES the long handle hand give grind plate to be positive and negative direction of rotation movement. First clockwise rotation 180 & deg; , counterclockwise rotation 90 & deg; , and so on. Generally, rotary grinding of abrasive grains after more than ten times came to a grinding blunt, so often should raise research plate to add new abrasives.

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