Failure analysis and treatment of bellows globe valve

its structure, operation and environment were improved. The first is to increase the limit welfare of flat key I, and add a 3mm thick stainless steel packing pad to the lower packing of PTFE material, so as to prevent the packing from getting dirty and limiting the valve stem. When the valve is clos

2019-04-29

Failure analysis and treatment of bellows globe valve

its structure, operation and environment were improved. The first is to increase the limit welfare of flat key I, and add a 3mm thick stainless steel packing pad to the lower packing of PTFE material, so as to prevent the packing from getting dirty and limiting the valve stem. When the valve is clos

2019-04-29

Failure analysis and treatment of bellows globe valve

the flat key I until the upper end face of the flat key I contacts the lower end face of the lower packing. As the lower packing is made of PTFE material, if the valve is opened excessively, the flat key I will be embedded in the packing, the valve can no longer be opened and closed, and the bellows

2019-04-29