A, confirm the ball valve in the preparation of 1, before installation to ensure ball valve installation position line on the position of coaxial, pipeline flange should keep two pieces of parallel, confirmed the pipeline to withstand ball valve, its weight if found pipeline cannot withstand the weight of ball valve, is equipped with the corresponding support of the pipeline before installation. 2, confirm whether there is impurities inside the pipeline, welding slag, etc. , must be put inside the pipeline purging and clean. 3, check the ball valve nameplate, and several times to fully open ball valve full close operation, confirm the valve to work normally, comprehensive review again the all details of the valve, ensure that the Industrial Valves is in good condition. 4, remove the protective cover on both ends of the valve, check valve body clean, clean the valve body cavity, as a result of the ball valve sealing surface shape is the ball, even small debris may also be the sealing surface damage. 2, 1, ball valve, ball valve installation can be installed at any section at the upstream end, handle ball valve may be installed in any position, if the configuration actuator ( Such as gear box, electric - Pneumatic actuators) Ball valves, it must be installed vertically, the valve on the import and export in a horizontal position. 2, ball valve, flange and pipe flange gasket fitted according to the requirements of pipeline design. 3, flange bolts shall be symmetrical, successive, evenly tighten. 4, if the ball valve adopt pneumatic, electric actuators, according to the instructions to complete the installation of the air supply, power supply. After three, ball valve installation check 1, after the installation, start the ball valve open and close several times, should be flexible, force uniform, ball valve is working properly. 2, according to the design requirements, pipeline pressure pressure after the test ball valve and the flange joint surface pipe sealing performance. 4, 1, only removable ball valve, ball valve repair before and after the pressure, to dismantling operations for ball valve. 2, the decomposition and assembly process again for ball valves, need to have the protection of the sealing parts, especially non-metal components, parts like o-rings it is best to use special tools. 3, ball valve, the valve body to assembly to tighten bolts must be symmetrical, gradually and evenly. 4, cleaner should be with the rubber ball valve parts, plastic parts, metal parts and working medium ( For example, gas) Are incompatible. Working medium is gas, can use gasoline ( GB484 - 89). Clean the metal parts. Non-metallic parts clean with clean water or alcohol. 5, break down of a single component can use the way of baptism to clean. Still left did not break down the non-metallic metal parts can be fine clean clean immersion cleaner silk ( In order to avoid fall off fiber adhesion on the parts) Scrub. When cleaning should remove all adhesion on the surface of grease, dirt, plastic product, dust, etc. 6, non-metallic parts after cleaning shall be immediately removed from the cleaning agent, may soak for a long time. 7, after wash wall cleaning agent to volatilize and after cleaning, Available not soak cleaner silk cloth to wipe) Are assembled, but shall not be shelved for a long time, or it will rust and dust pollution. 8, the new parts also need to be cleaned before assembly. 9, the use of grease lubrication. Grease and ball valve should be metal material, rubber parts, plastic parts and working medium are incompatible. Working medium is gas, available for example 221 grease. Besmear in seal installation groove on the surface of a thin layer of grease, apply a thin layer of grease on rubber seal, valve stem seal face and friction surface coated with a thin layer of grease. 10, the assembly should be there is no metal chips, fiber, fat ( With the provisions of the exception) Dust and other impurities, foreign bodies, such as pollution, adhesion, or stay on the parts surface or into the lumen.
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