Brass MxF Mini Ball Valve With Chrome Plated
***Brief introduction of ball valves
Ball valves, the GB/T21465-2008 Valve Term describes it as followed: kinds of valves whose starting and stopping parts are drove by valve rod and do orbiting roll with the axes of valve rod.The ball valves is used to cut off or connect the medium in pipeline, it also can be used to control and adjust of flow. The V type ball core of sealed V type ball valves has strong shear force with the metal valve seat of surfacing cemented carbide; it is especially suit for the medium containing fiber and small solid particles. The multi-way ball valves not only can adjust the confluence, split-flow of medium and control the changing-over of flow direction; it also can close one of the pipelines and connect the other two pipelines.
Ball valves came out in the 1950s. With the rapid development of technology and the continuously improved of productive technology and product structure, ball valves has developed to a main valves in 40 years. In western countries, the use of ball valves is rising year by year. In our country, ball valves is extensively used in many areas, such as the petroleum refining, long-distance pipeline, chemical industry, paper making, pharmacy, water conservancy, electric power, municipal administration, steel and so on. All in all, ball valves occupy a very important position in national economy.
***Technical Specifications:
Process: Forge Brass Body
Material: Brass
Working Medium: water services, heating & air-conditioning plants, compressed air systems
Working Pressure: 1.6MPa
Working Temperature: -10---120℃
Pipe Thread: ISO228 Standard
Specifications: 1/4", 3/8", 1/2"
Ball: Brass with chrome plated
Handle: Aluminium Butterfly Handle
Nut: Brass or Steel
O-Ring: NBR
Seat: PTFE
Stem: Brass
***How to replace the valve seat and sealing element
As machinery products, after long time use, there will be some problems of ball valves. If there are problems appeared on valve sear or sealing element, then how to replace them?
1.First of all, you need to dismantle them.
Keep the ball valves in a state of half-opened, then clean and eliminated the dangerous materials may existed in or outsider the valves. Then next, close the ball valves, and take down the connecting bolt and nut. Dismantle the actuating device according to follow orders – executive body, attachment bracket, gasket used to prevent loose, valve-stem nut, butterfly shrapnel, glam, wear plate, and valve rod padding. Next step is to dismantle the connecting screw and nut of body cover, separate the valve cover and valve body. Then ensure the ball is in the state of turn-off, take out the valve seat.
During the dismantling, be careful to avoid the scratch on valve rod surface and sealing part.
2..reassemble the ball valves
First clean and check the components which have been dismantled, I recommend you to replace the valve seat and other sealing components. During the assembling, do follow the order which is opposite of dismantling. Use the specified torsion to lock the connecting bolt of flange and valve-stem nuts. After assembled the executive body, make the valve to the state of open or close.
During the dismantling and assembling of ball valves, you should be careful to avoid scratch.
