Normally open pneumatic fluorine-lined diaphragm valve：
EG6K41F (unlined), EG6K41Fs (fluorine-lined) pneumatic diaphragm valves (normally open) are used to control non-corrosive or strongly corrosive media. The inner cavity surface of the valve is unlined or covered with various fluoroplastics to choose from, applicable For 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 detection
Test and inspection according to BS6755 standard
Nominal pressure: PN(MPa)
Valve body: PN×1.5
Sealing: PN×1.1

Structural features:

Diaphragm valve is a special form of shut-off valve:
1. The opening and closing parts of elastic sealing ensure that there is no internal leakage;
2. The streamlined flow channel makes the pressure loss small;
3. There is no stuffing box, so there is no leakage;
4. The valve body and the cover are separated by the middle diaphragm, so that the valve cover, valve stem and other parts above the diaphragm are not corroded by the medium;
5. The diaphragm can be replaced and the maintenance cost is low;
6. The variety of lining materials can be applied to various media, and has the characteristics of high strength and good corrosion resistance.