For the improvement of health level of butterfly valve (1) aprons sentinel production outsourcing, strengthen quality control, valve commonly used in water supply industry, selects the eyes epdm rubber and butyl rubber and natural rubber with much, admixture reclaimed rubber is forbidden; % of butterfly plate mill of hubei province of the o-ring seal on the whole piece of linking piece into a short piece of dovetail assembly connection, household self-priming pump to adjust the degree of each part linking piece of extrusion to balance the health level of the service life of the butterfly valve, the adjustment technique is also hard to master; (2) the individual plant in tianjin and Shanghai, introduced the DB level health butterfly valve and flange and health level, the gasket set in the dovetail groove, there is a certain allowance, can adjust the health level of the butterfly Industrial Valves closing aprons extrusion conditions; (3) the company launched a 'fluorine plastic seal instead of the rubber sealing ring, small vacuum pump to improve sealing ring wear resistance and aging resistance; (4) a lot of manufacturers to launch the metal sealing butterfly Industrial Valves replacement aprons sanitary butterfly valve sealing health level. Metal sealing sanitary butterfly valves due to seal the elasticity of the smaller, generally USES the eccentric structure, especially with three-dimensional eccentric structure is ideal. Metal sealing health level of the butterfly valve is used at high pressure steam pipeline, more expensive, it in the operation of the seal face is not easy to damage, but its manufacturing precision demand is higher, once leakage is difficult to repair. 1) Low temperature regulator shell structure shape. Material selection of right of control valve normal work has very important significance. Health level compared to the structure characteristics of the butterfly valve and stop valve, gate Industrial Valves, not only avoid the because of irregular shape, shell wall thickness nonuniformity, produce in the low temperature cold, deformation caused by temperature stress, and because the health level of butterfly valve is small in size, body shape about basic yes said, has a smaller thermal capacity and thus; In the cold quantity consumption is small; Shape rules and convenient for anti-condensation measures of regulating valve. 2) Stem bushing choice: according to customer reflect, some low temperature regulator in the running of the rotation of the regulating valve parts occur viscous, occlusion phenomenon occurs frequently, the main reason is: matching material selection is not reasonable, to leave a gap is too small, cold and machining accuracy. In the development of low temperature regulator, has adopted a series of measures to prevent the above phenomenon. For example: we under the valve stem, bush chose has a small friction coefficient and self-lubricating properties of SF - Type 1 composite bearing, so can be applied to some special needs low temperature regulator. In this way, we have a lot of the health level of butterfly valve to improve and improve.
In the office, various are considered essential since they are used to achieve particular tasks in the office. Among these , wedge valve, os & y valve fire protection, and resilient gate valve are widely used.
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