EG641F (unlined), EG641Fs (fluorine-lined) pneumatic diaphragm valve (reciprocating type with manual operation) is specially used to control non-corrosive or strong corrosive media. The inner cavity of the valve is covered with various fluoroplastics for selection. Different working temperatures and fluid lines.

Applicable temperature: ≤85℃, ≤100℃, ≤120℃, ≤150℃ (according to lining and diaphragm material)
Pressure rating: PN (MPa) 0.6 1.0 1.6

Material:

Valve body: cast iron, ductile iron, carbon steel, stainless steel
Bonnet: cast iron, ductile iron, carbon steel, stainless steel
Lining: no lining, fluoroplastic
Diaphragm: Fluoroplastic
Disc: cast iron, carbon steel
Cylinder: aluminum alloy, carbon steel
Stem: carbon steel, stainless steel
Handwheel: cast iron

Test:

Lining layer: electric spark test and inspection according to BS6755 standard
Nominal pressure: PN(MPa)
Valve body: PN×1.5
Sealing: PN×1.1