Stainless steel wide flange ball belongs to a floating ball valve, pressure in the media sphere to produce a certain displacement and pressed in the sealing surface of the outlet end, to ensure the outlet end seal. Simple floating ball valve structure, good sealing, but the ball all bear the load of the working medium to pass the exit ring, so to consider the ring material can withstand the work load of the media sphere. Stainless steel wide flange Ball Features: ● Nominal: 1.6-4.0MPa ● Temperature range: -20 ~ 232 ℃ ~ 350 ℃ ● Suitable medium: water, oil, gas some corrosive liquid steel wide flange ball Features: ● flow resistance; ● simple structure; ● small size, light weight; ● valve sealing surface material use plastic, sealing well; ● easy to operate, opening and closing rapidly, to facilitate remote control; ● easy maintenance, seals are generally activities, the removal easy to replace; ● When fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media will not cause erosion of the valve sealing surface. Stainless steel wide flange ball valve construction, installation points: ● installation position, altitude, direction and export must meet the design requirements, the connection should be firmly tight. ● installed on various types of pipe insulation manual valve handle shall not be down. ● visual inspection must be carried out before installing the valve, the valve plate should comply with the provisions of the current national standard GB 12220 "Universal Valve logo." For working pressure greater than 1.0 MPa and the role played off the main pipe valves should be installed before the strength and rigorous performance tests, passing behind the prospective use. Strength test, the test pressure is 1.5 times the nominal duration of not less than 5min, the valve housing, packing should be no leakage as qualified. Tightness test, the test pressure of 1.1 times the nominal; test pressure in the test duration should be consistent with GB 50243 standards, with no leakage valve sealing surface is qualified. ● between valve flange and pipe flange design by piping installed gasket. ● With valve drive mechanism, according to the provisions of product installation instructions. Stainless steel wide flange ball valve installation and maintenance Notes: ● Wide flange ball valve in the closed position, the valve is still there inside the pressurized fluid ● Before maintenance, lift line pressure and the valve in the open position ● You must first identify the Ball on, after removing the pressure downstream piping indeed, to be demolished decomposition operation ● Care must be taken to prevent damage to the sealing surface decomposition and re-assembly of the parts, especially when non-metallic parts, when you remove the O-ring on the appropriate use of special tools ● When mounting flange The bolts must be symmetrical, gradually and evenly tighten ● cleaning agent should be compatible with the ball in the rubber parts, plastic parts, metal parts and the working medium (such as gas) are. Working medium for the gas, available gasoline (GB484-89) to clean metal parts. Non-metallic parts decomposition down with pure water or alcohol to clean ● individual parts can be cleaned with immersion mode. Not yet left down decomposition of non-metallic parts of the metal parts can be impregnated with fine clean clean cleaning agent has silk (in order to avoid loss of fiber adhesion on the part) scrub. Must be removed for cleaning all the adhesive on the wall of grease, dirt, rubber, dust, etc. ● cleaning agent should be removed from the non-metallic parts immediately after washing, not long soak ● After cleaning the wall needed to be to be washed after volatile cleaning agent (not soaked cleaning agent available silk rub) for assembly, but not for a long time on hold, otherwise it will rust, dust pollution ● new parts before assembly also need clean ● use grease lubrication. Grease should be compatible with the ball are metal, rubber parts, plastic parts and the working medium. Working medium for the gas, can be used such as 221 special grease. Apply a thin layer of grease on the surface of the seal mounting groove, coated with a thin layer of grease on the rubber seals, sealing surface and the friction surface is coated with a thin layer of grease stem ● assembly should be allowed to have a metal debris, fibers, oils (except the requirement to use) dust and other impurities, foreign matter contamination, or remain on the part adhered to the surface or into the lumen.