General purpose
Bourdon pressure gauges
The most common mechanical solution for medium and high gauge pressures in compatible liquids and gases. Suitable for pumps, compressors, pneumatic and hydraulic circuits, skids and process lines.
Mechanical pressure measurement
Industrial pressure gauges
Mechanical instruments for local pressure readings without a power supply. We select the technology for the range, fluid, accuracy, materials, vibration and installation conditions.
Multibrand supply:
Geyser IC can supply gauges from leading international and Italian manufacturers, including WIKA and Te.Ma Vasconi, selecting a solution to the customer's specification without restricting the proposal to one model.
Types
Which measurement principle is required?
Demanding processes
Diaphragm pressure gauges
Suitable for low pressures, high overload capacity, and viscous, dirty, aggressive or particle-laden fluids, with materials and connections selected for the process.
Low pressures
Capsule pressure gauges
For low positive and negative pressures in dry, non-aggressive gases. Typical applications include HVAC, filtration, cleanrooms, laboratories and ventilation.
ΔP
Differential pressure gauges
Measure the difference between two pressures for filters, fans, pumps, heat exchangers, level and flow applications.
Absolute vacuum reference
Absolute pressure gauges
Measure relative to absolute vacuum, where atmospheric pressure changes must not affect the reading, such as vacuum processes and distillation.
Indication + threshold
Pressure gauges with electrical contacts
Combine local mechanical indication with one or more adjustable electrical contacts for alarms, permissives or control. Magnetic, inductive, reed or microswitch contacts may be available depending on the series.
Selection guide
Six details that define the gauge
Quick selection
Bourdon, diaphragm or capsule?
| Technology | When we select it | Key advantage |
|---|---|---|
| Bourdon | General industrial applications and medium to high pressures. | Simplicity, robustness and wide availability. |
| Diaphragm | Low pressures, viscous, dirty or aggressive fluids, or high overload requirements. | Separation from the mechanism and greater overload resistance. |
| Capsule | Very low positive or negative pressures in dry gases. | High sensitivity to small pressure differences or values. |
Actual operating conditions
Vibration, pulsation and temperature
Vibration and pulsating pressure
For pumps, compressors and pulsating lines, we can assess liquid-filled cases, pulsation dampers or remote mounting to stabilise readings and protect the mechanism.
Steam and high temperature
If fluid temperature exceeds instrument limits, protect the gauge with a siphon, cooling element or suitable remote configuration.
Explore accessories →Electrical contacts
When indication and switching are needed in one instrument
Gauge with contacts
Primarily a local indicator, it also switches a contact when pressure crosses an adjustable threshold.
Useful where operators need to see pressure and a simple alarm or control signal is also required.
Dedicated pressure switch
Designed primarily for switching. Select it when the threshold, repeatability, enclosure or safety requirements are the priority.
ATEXIECExEN 837Inductive contacts
Available certifications and contact types depend on manufacturer and series. For SIL safety functions, we normally assess a dedicated certified pressure switch.
Multibrand replacements
Do you have an old gauge to replace?
The new instrument does not need to be the same brand.
Send us a photograph or nameplate, scale range, dial diameter, process connection and material. We can propose a WIKA, Te.Ma Vasconi or other manufacturer's equivalent suitable for the specification.
Request a quotation
Gauge configuration
Complete the information you know. We can define any missing details together.
FAQ
Pressure gauge FAQ
When should I choose a Bourdon gauge?
It is the most common choice for medium and high gauge pressures in compatible liquids and gases, when simple, robust local indication is required.
When is a diaphragm gauge useful?
Particularly for low pressures, high overload capacity or viscous, dirty, corrosive or particle-laden fluids, using suitable materials and connections.
What is a capsule gauge used for?
Very low positive and negative pressures, especially with dry, non-aggressive gases, such as HVAC, filtration and cleanrooms.
When is a differential gauge used?
To monitor the pressure difference between two points, such as filters, fans, pumps, heat exchangers, level or flow systems.
What is the difference between gauge and absolute pressure?
Gauge pressure uses atmospheric pressure as its reference. Absolute pressure is referenced to absolute vacuum and is therefore independent of barometric changes.
What is a gauge with electrical contacts used for?
It combines local mechanical indication with one or more electrical contacts operating at set thresholds for alarms, permissives or control.
When is a liquid-filled case useful?
With vibration and pulsation, it damps pointer movement and improves readability and mechanism life.
How do I choose a pressure gauge range?
Allow suitable margin above operating pressure, with more for pulsations or peaks. Then check accuracy, dial size, materials, connection and environmental conditions.