EVO ‘Measuring up to Pressure’

A Gauge for every purpose for all Industrial Sectors and specific applications:

  • Vibrations
  • Nace Version
  • ATEX Version
  • Oxygen Service
  • ASME PTC 19.3TW Version
  • Conformity to EN 837 Standard Norm ASME B 40.1 NACE MR0 175, NACE MR0103, 3A

Group Gauges

All Stainless Steel Pressure Gauges

An extensive range of stainless steel construction (316 bourdon tube socket) with DIN cased or Bayonet Bezel removal bezel designs. Available dry fillable or glycerine filled (silicone oil available on request).

Bourdon MEX5 100mm

Thanks to their robust stainless steel housing our products are also suitable for use under tough conditions and demanding environments found in the oil and gas or petrochemical industries. These products can also be used in areas where hygiene rules apply and for applications where seawater is used.

All stainless steel pressure gauges with or without liquid filling, nominal
diameters 40, 50, 63, 100, 160, 200, 250 mm.
Ranges from vacuum to 30,000 psi (-1 to 2000 bar).

Monel wetted parts available. DIN style gauges available.
Compound Gauges (Combined vacuum and pressure gauge) available on request.

View our Stainless Steel Pressure Gauges catalogue on the online shop.

Glycerine Filled pressure Gauges

6103 MGS10 EVOFor applications where heavy vibration and pulsation are present choose a liquid filled gauge. An extensive range of glycerine filled, stainless steel cased, (brass bourdon tube). (silicone oil available on request).

Nominal diameters 40, 50, 63, 80, 100, 160 mm.
Ranges from vacuum to 20,000 psi (-1 to 1600 bar).
Choice of dampening fluids available with a choice of wetted parts. Compound Gauges (Combined vacuum and pressure gauge) available on request.

Standard Pressure Gauges shop page

Heavy Duty Pressure Gauges shop page

Pneumatic/Standard Pressure Gauges

Pneumatic/Standard Pressure GaugesStandard bourdon tube pressure gauges with brass connection, nominal diameters 40, 50, 60, 63, 80, 100, 160, 250, 300 mm.
Square and Rectangular sizes 72 x72 mm, 96 x 96 mm, 144 x 144 mm, 48 x 48 mm, 144 x 72 mm.
Ranges from vacuum to 15,000 psi(-1 to 1000 bar).
Duplex versions available in selected dial sizes.

Pneumatic/Standard Pressure Gauge Data Sheet

Customer Specials

Customer SpecialsBespoke instruments for specialist applications with a choice of mountings, process connections and customised dials. Our experience in manufacturing gauges includes:

  • Fire pumps
  • Compressors
  • Medical equipment
  • Diaphragm seals
  • Food and drink processing

Refrigeration Pressure Gauges

ROSSO CompThese gauges are designed for the pressure measurement of refrigeration systems, ventilation and air conditioning applications (HVACR) dials are furnished with corresponding temperature scales for the various refrigerants. The steel case is varnished in different colours depending on intended use.

Differential Pressure Gauges

Differential GaugeDifferential pressure gauges with bourdon tube, capsule, bellow or diaphragm sensing element.

Differential Pressure Gauge data sheet


Low Pressure Gauges

Low Pressure

Capsule Pressure Gauges

  • Nominal Diameters 63, 100,150 mm
  • Ranges 0/6 ÷ 0/600 mbar pressure
  • -6/0 ÷ 600/0 mbar vacuum
  • Choice of wetted parts

Differential Pressure Gauge

 Bellow Gauges

  • Nominal Diameters 100,150 mm
  • Ranges 0/6 ÷ 0/600 mbar pressure
  • -6/0 ÷ 600/0 mbar vacuum
  • Choice of wetted parts

Ring Balance Pressure Gauges

Rectangular sizes:

  • 305 x 132 mm
  • 305 x 195 mm
  • 305 x 295 mm

Safety Pattern Pressure Gauges


Full safety pattern Solid Front pressure gauges, nominal diameters 63, 100, 150 mm.
Ranges from vacuum to 60,000 psi
(-1 to 4000 bar).
Available with or without liquid filling.

Bourbon Tube Safety Pattern Pressure Gauge data sheet

Bourdon MEP5 100mm


Phenolic Case Pressure Gauges

Phenolic CasePhenolic case 125 mm diameter.
Pressure gauges with or without liquid filling, choice of wetted parts, stainless steel, monel or brass connection.
Available with standard case or full safety pattern Solid Front case.
Ranges from vacuum to 30,000 psi (-1 to 2000 bar).

Phenolic Case Pressure Gauges data sheet

Test Gauges

Test GaugesWorkshop Test Gauges
Nominal diameter 150 mm Accuracy
Class 0.5%
Precision Test Gauges nominal diameters 100, 150, 200, 250 mm
Accuracy Class 0.25%.
Laboratory Test Gauges nominal diameter 250mm. Accuracy Class 0.1 %

Test Gauge data sheet

Diaphragm & Schaffer Gauges

Diaphragm & Schaffer Gauge


  • Nominal Diameters 100, 150mm
  • Ranges 0/25 ÷ 0/400 mbar pressure
  • -25/0 ÷ 400/0 mbar vacuum
  • 0/0.6 ÷ 0/25 bar
  • Choice of wetted parts


  • Nominal Diameters 63, 100, 150mm
  • Ranges vacuum to 600 bar
  • Chemical and Hygienic
  • Choice of connections and flanges
  • Choice of wetted parts

Absolute Pressure Gauges nominal diameters 100.150 mm, available with a choice of wetted parts and ranges.

Diaphragm Gauge (threaded connection) data sheet

Diaphragm Gauge (flanged connection) data sheet

Schaffer Gauge data sheet

Homogenizer Gauges

HomogenizerHomogensizer gauges are designed for homogenizer machines designed to assure the best hygiene.

Built to standard n.74-02 of 3-A organisation (Sanitary Symbol Administrative Council)
Dial Size: 100mm
Ranges 2000 psi 160 bar to 15000 psi 1600 bar
Dry or Liquid Filled
Process diaphragm seal integrally built with the pressure gauge.

Homogenizer Gauge data sheet

Diaphragm Seals

A complete range of diaphragm seals is available with a choice of materials of construction. Specifically for corrosive and difficult process fluids plus hygienic applications.



Diaphragm Seals



Chemical Diaphragm Seal

  • Mini
  • Threaded
  • Flanged
  • Wafer
  • PTFE
  • Variety of materials of construction for corrosive medium

Diaphragm Seals shop page


Pressure GaugeThe diaphragm seals may be fitted to pressure gauges, pressure transducers or with remote capillary to pressure switches or pressure transmitters including differential pressure.

The EVO workshops offer a complete diaphragm seal fitting and filling facility achieved with a purpose built filling rig operated under the strictest quality control condition.

Hygienic seals are filled with a priority food quality oil to the respective pressure instruments, for which full certification can be given.


Accessories Available

  • Cocks and Valves
  • Pigtails and Syphons
  • Pressure Snubbers and Overload Protection Device
  • Rubber Covers

Full details available on request.