G641Fs reciprocating pneumatic lined fluorine plastic diaphragm valve. This valve is specially used to control non-corrosive or general corrosive media. The internal cavity surface of the valve is unlined or covered with various rubbers for selection. It is suitable for different working temperatures and fluid pipelines. .

Applicable temperature: ≤85℃, ≤100℃, ≤120℃, ≤150℃ (according to lining material)


Valve body: cast iron, ductile iron, carbon steel, stainless steel
Valve cover: cast iron, ductile iron, carbon steel, stainless steel
Lining: no lining, fluoroplastic
Diaphragm: Fluoroplastic
Valve flap: cast iron, carbon steel
Air cylinder: ductile iron
Piston: carbon steel
Stem: carbon steel
Handle: cast iron

Pressure rating: 0.6 1.0 1.6


Lining layer: electric spark test and inspection according to GB/T13927 standard
Nominal pressure: PN (MPa)
Valve body: PN×1.5
Sealing: PN×1.1

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