Stainless steel gate valve when used for flange gasket accessories advantage: the maintenance of stainless steel gate valve valve switch is very convenient, very save Labour, so it can be carried easily; It won't be moving when fluid flow; Equipment sealing side less susceptible to erosion and erosion, so it is not easy to cause depreciation; Equipment simple structure form, so short the length of the structure, and have very good production process, so it is widely applicable scope. , of course, also don't ignore its disadvantages: although medium sealing surface will not cause erosion and wear and tear, but between the sealing surface will rub against each other, and once the friction scratches, etc. , it is difficult to repair, so it is a disadvantage; Although short the length of the machine, but the size of the shape, so open when the need to find a place where space is large, and as a result, the process of the switch longer; Is the machine's structure is complicated, so for many people who are unfamiliar to machine, the look is a difficult problem. Like gate valve, ball Industrial Valves, butterfly valve, check valve and valve parts often easier than Industrial Valves itself is damaged, flange gaskets, such as how to replace the damaged flange gasket? Stainless steel gate valve flange gasket needs to follow the following basic principles, ready to materials and tools, pay attention to the operation steps, to achieve two technical requirements and five points: 1. Preparation (1) material: butter, cotton yarn, liquid leakage and sealing gasket; (2) tools: wrench, screw whorls. 2. Steps (1) remove flange bolts, remove the valves or move to let the cat out of the end section. Remove old gasket seal face; (2) choosing the appropriate gaskets, a layer of butter evenly on both sides; (3) the seal cushion between two flanges sealing gasket, aim at two flange and bolt hole, into the bolt, screw nut, uniform points repeatedly diagonal tighten nut. Bolt nut length 2 - 3 it is advisable to pitch. Flange gasket after the installation, should do after work pressure test for qualified without leakage. 3. Technical requirements (1) should be careful operation, to prevent damage to the flange; (2) completed, tools for cleaning and maintenance. 4. Gasket installation five points (1) choose the right: the form of flange, bolts, gaskets, the material, the size should be according to the operating conditions and the flange surface structure equipped with appropriate; (2) check the fine: carefully before installing the checks on the quality of flange, bolts, nuts, washers, should be no burr, uneven, crack defects, etc. Carefully check the flange, pipe installation, should be unbiased, wrong, wrong hole mouth mouth phenomenon; (3) wash: flange sealing surface must be clean, bolt, gaskets shall not be with the impurities, grease, etc. ; (4) pack is: in gasket should be one of pipe or tube; (5) on the well: installation bolt, nut application force uniform, tighten the points repeatedly symmetry.
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