The flexible couplings series FNN, supplied in length as specified by customers, are made of a flexible conduit in stainless steel AISI 321 with a braid in stainless steel AISI 304 wires. All terminal unions of flexible conduit are made of Fe 37-UNI 7070 steel and T.I.G. welded.
On request a PVC coating for the optimized protection of the conduit against aggressive chemical agents is available. However, such a coating causes a considerable reduction of conduit flexibility, while it increases the minimum bending radius.
Flexibles are recomended for fixed connections and/or when light vibrations may occur.
Type of protection: Ex db / Ex tb
Degree of protection: IP66 / 67
Gas group IIC
Dust group IIIC
Max range ambient temperature: -50°C ÷ +80°C
Operating temperature: -50°C ÷ +450°C
Flexible Pipe: Stainless Steel AISI 304/321
Fittings: Steel (FE 37-UNI 7070)
Flexible pipe internal usable diameter: 11 mm up 100 mm
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