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Q646F pneumatic four-way ball valve working principle and flow diagram
"LL" four-way ball valve: a valve to achieve positive and negative water supply switching, each turn 90°, water supply mode switching once, can simultaneously switch the flow direction of two media, both convenient and rapid, to achieve a valve multi-purpose effect. When the water supply valve 1, 4 open, valve 2, 3 close; Reverse water supply valve 2, 3 open, valve 1, 4 closed, now use a four-way ball valve instead, easy to operate.
Q646F pneumatic four-way ball valve implementation standard
1 design and manufacture: GB/T12237-1989; APl608.
2 Inspection and test: GB/T13927-1992; APl 598.
3 Flange connection: JB/T79] 1 2-1994; ASME/ANSI B165.
1, the fluid resistance is small: the sphere and the
valve
body of the connection pipe section is equal, and the sphere channel is connected by arc, the medium through the sphere is, the fluid resistance is small.
2. Good sealing performance: the valve seat is made of PTFE material with certain elastic deformation and high strength to achieve good sealing performance to ensure the stability of the valve.
3, long service life: valve spool and light neck material is made of Austenitic stainless steel, valve seat material selection of PTFE, can achieve good corrosion resistance, extend the service life of the valve.
Q646F pneumatic four-way ball valve performance parameters