Manometer [india] manufactures fiebig liquid filled pressure gauges. These liquid filled pressure gauges are suggested when the gauge is subjected to severe operating conditions. The filled liquid protects the internal parts against vibrations, and also lubricates and protects the gauge from harsh environmental conditions. The case is manufactured in stainless steel or mild steel and it is filled with glycerin or silicon oil as per enclosure protection ip-55/65. These gauges have a measuring system of phosphor bronze, brass, ss 316 or monel. The phosphor bronze bourdon tube, tip and socket are silver brazed and stainless steel ones are argon are welded. Over-range protection of 130% is provided as standard.
