The model PG28 Bourdon tube pressure gauge with wetted parts from Hastelloy C276 is particularly suitable for applications with aggressive media.
Hastelloy C276 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum-tungsten alloys and is notable for its high resistance to crevice corrosion, pitting corrosion and stress corrosion cracking in corrosive, oxidising and reducing media.
WIKA manufactures the model PG28 per EN 837-1 both in the “S1” version and in the “S3” safety version. The safety version is made up of a non-splintering window, a solid baffle wall between measuring system and dial and a blow-out back.
In the event of a failure, the operator is protected at the front side, as media or components can only be ejected via the back of the case.
For harsh operating conditions (e.g. vibrations), all instruments are also available with an optional liquid filling.
As an alternative, WIKA offers diaphragm seals of models 990.34 and 990.10 as well as model 4 diaphragm pressure gauges in a Hastelloy version. Diaphragm seals are always the first choice for safety-relevant applications.