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New SIL-3 approved GESTRA level electrodes
- Backed by 40 years of experience, GESTRA introduces the standard for steam and superheated water boiler control safety equipment - Associated with the NRS 1-50 level indicator, the NRG 1..-50 level electrodes are used as water level limiters for steam and superheated water boiler systems. The water level limiters shut off the burner when the lowest defined water level (NB) is reached - Safety integrity level SIL 3 according to IEC 61508, when the 2 devices are associated (NRS 1-50 & 2 electrodes NRG 1..-50)
- Steam boilers - Superheated water boilers- Operating pressure: NRG 16-50 (32 bar/238°C), NRG 17/50 (60 bar/275°C), NRG 19-50 (100 bar/311°C), NRG 111-50 (183 bar/357°C) - Connection G3/4, G1 (NRG 111-50) - Electrode rod 1.4401 - Lengths: 500 mm, 1000 mm, 1500 mm, 2000 mm, 3000 mm - IP 65 protection - Mounting in the boiler or in an external bottle
