PG28 Bourdon pressure gauge WIKA


Šifra: MAN-PG28

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Delivery time: okvirno 2 tedna

  • wetted Hastelloy C276 parts
  • scale from 0… 0.6 to 0… 700 bar
  • also available as safety version “S3” according to EN 837-1
  • excellent resistance to corrosive media such as sulphuric acid, nitric acid, chlorine gas, etc.




The WIKA PG28 Bourdon pressure gauge for the process industry is used for pressure measurement of gaseous and liquid media.

The PG28 model with wetted Hastelloy C276 parts 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 known for its high resistance to cracking, corrosion and fracture in corrosive, oxidizing and reducing agents.

WIKA manufactures the PG28 model according to EN 837-1 in both the “S1” and the “S3” safety versions. The safety version consists of shatter-proof safety glass, a solid partition between the measuring system and the dial, and a vent.

In the event of a failure, the operator is protected at the front, as the media or components can only be ejected through the back of the housing. In harsh operating conditions (e.g. vibration), all instruments are also available with an additional liquid refill.

As an alternative, WIKA offers diaphragm seals models 990.34 and 990.10 and diaphragm pressure gauges model 4 in Hastelloy version. Membrane seals are always the first choice for safety-critical applications.


PG28 features

  • Nominal size: 100, 160
  • permissible operating temperature:
    • -40 °C … +60 °C for unfilled instruments
    • -20 °C … +60 °C for instruments with glycerine filling
    • -40 °C … +60 °C for instruments with silicone oil filling


To view additional options and more technical features, we recommend viewing the attached .pdf documents under the Documentation section.



The new WIKA pressure measurement system is an EMICO emission meter that ensures the safety of people and the environment in critical processes. The system consists of pressure gauges of models 2xx.30 in the safety version or S-3 in accordance with EN 837-1 (S3) and a valve to prevent fugitive emissions:

The measuring instrument and the valve are connected by a lightweight swivel adapter with a special sealing packing. The system is leak tested in accordance with TA Luft (VDI 2440) for fugitive emissions. The EMICO system measures pressures from 0 to 420 bar or 6000 psi. In the event of a failure due to high overpressure, the S-3 safety version protects the user from injury.

The compact measuring system can be started up immediately after delivery. The free rotating swivel adapter allows 360° positioning of the display and easy disassembly of the measuring instrument (in case calibration is required). In accordance with ISO 15848-1 and TA-Luft, S-3 pressure gauges can be combined with top valves in a fugitive design to form EMICO gauges.

To find out more about the app itself, click here.


Areas of use, applications

  • oil and gas, chemical and petrochemical industries
  • with housing filler for applications with high dynamic pressure loads and vibrations
  • for gaseous and liquid aggressive media that are not highly viscous or crystallising, even in aggressive environments


ELPRO designation: MAN-PG28