Temperature resistant

During the manufacturing process, glass tubing is rotated by a stainless steel wheel which incorporates an external ‘O’ ring to prevent direct contact between the steel and a hot glass surface. With typical glass temperatures during production of 446°F (230°C), silicone ‘O’ rings had a limited operating lifetime of days (one week maximum).

Purpose designed DuPont Kalrez Spectrum 7090 ‘O’ ring replacement parts, available from Dichtomatik, extend the life of these products to over 6 months, while at the same time also eliminating ‘O’ ring degradation during this period.