Butterfly valve of the construction and installation points

      1).Location, height, must meet the design requirements of the import and export orientation, the connection should be firmly.

       2).All kinds of manual valve installed in the pipe insulation, handle are not down.

       3).The valve must be installed prior to visual inspection, the valve plate should be consistent with the provisions of GB 12220 existing national standards, "universal valve logo". The working pressure greater than 1 MPa and in the main pipe on the role played off valve, the installation should be carried out before the performance test the strength and tight, pass behind the prospective use.

Chain guides

      Strength test, the test pressure is 1.5 times the nominal pressure,duration of not less than 5min, the valve housing, packing should be no leakage. Tightness test, the test pressure is 1.1 times thenominal pressure; the test pressure shall comply with the requirements of GB 50243 standard in the test duration, the sealing surface of the valve without leakage.

      A product selection of points

     1.The main control parameters are the size of butterfly valve.

      2.For the single plate type air valve, butterfly valve, and has the advantages of simple structure, convenient processing, low cost,simple operation, but the regulation accuracy is poor, is only suitable for ventilation and air conditioning system for the switch orcoarse adjustment.

      3.Manual, electric or a zipper type operation, can be arbitrarilyfixed angle range of 90 DEG.

      4.Because the single valve plate, Bearing Co., the valve in the high pressure, large flow rate under the condition of short service life.The valve is closed and the ordinary type, heat preservation andinsulation division.

      5.Electric butterfly valve only two position control, electric actuatorwith multi leaf valve.

     Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China. We can supply a full-range of power transmission products, such as chains, sprockets and plate wheels,Transmission Chain, pulleys, gearboxes, motors, couplings,Lifting Chain, gears and racks. Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes, bolt-on hubs, torque limiters, shaft collars, motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes. 

      Chinabase is able to offer custom, cost-optimized solutions in accordance with customer drawings - such as ready-to-install machine parts and profiles - in addition to our standard products. Our internal Application Technology department and field staff are happy to provide free advice on custom solutions.