DIESSE Glass Gauges Brochure

Operating limits / Conditions:

Process:

Max. pressure: 160 bar @ 38”C (with GR18, MT18 or SHV type valves)

Max. temperature: 300”C (max. temperature allowed by borosilicate glasses as
per the DIN 7081 standard - see page 1.69)

Steam: (see page 1.59)

Max. pressure: 22 bar (with GR18, MT18 or SHV type valves)

Max. temperature: 216”C (saturated steam @ 22 bar)

For saturated steam values » 20 bar, a low-maintenance transparent level
gauge with mica shield protection should be used (see graph "glass loss
caused by boiler water" for the estimated Olass life)

Not only does the Olass life depend on the temperature, it depends

on the pH of the water (the higher the value, the shorter the glass life) level gauge