ST/GX Gas Turbine Meters - ATEX Certified

ST/GX Gas Turbine Meters – ATEX Certified

Turbine Gas Meters for Air Measurement Suitable for Hazardous Area Applications

The ST/GX range of turbine gas meters are suitable for the measurement of dry gases both inert and flammable and are designed to operate at line pressures down to 15 mbar.

ST/GX gas meters comprise of one cartridge assembly, fitted inside a stainless steel body (locked with an internal circlip), which has a magnetic pick up fitted and come in a range of threaded, flanged or wafer (designed for between flange installations) styles.

The Rotor fitted with low inertia , precision bearings is turned by the kinetic energy of the flowing gas at an angular velocity , which in the linear range of the flowmeter is proportional to the mean axial velocity of the gas.

The ST/GX Rotor blades sweep out the full bore of the meter except for a small tip clearance space . As the blade tips pass the magnetic pick up they initiate a pulse . Flow rate is determined by the frequency of the pulses and Totalised Flow is obtained by summing the pulses .

“101“ Totalizers, which sum the pulses automatically and display Flow Rate and Total Flow instantly on the readout can be mounted on the Turbine or fitted remotely.

ST/GX gas turbine meters fitted with the intrinsically safe pick up (IS option) are suitable for Hazardous Installations (Eex ia IIC T4).

ST/GX Gas Turbine Meters Main Features

  • Stainless Steel 316 Construction
  • Linearity +/- 2% (+/- 0.5% with 101 Totalizer)
  • Repeatability +/- 0.2%
  • Temperature Range -30ºC to +120ºC
  • Pressure Drop 12 mbar at Qmax
  • Selection of End Connections
  • Choice of Totaliser Options
  • Flanged Pressure Ratings to 29Bar / 300lb
  • Custom Build Options Available
ST/GX Gas Turbine Meter Product Range
Part Ref Size

Flow Range

m³/hr

Connection

(Options)

Length

(mm)

ST/GX 010 3/8" 0.4-4.2 1/2" BSP or NPT 70mm
ST/GX 012 1/2" 0.5-7 1/2" BSP or NPT 70mm
ST/GX 016 5/8" 1-14 3/4" BSP or NPT 75mm
ST/GX 020 3/4" 2.5-35

3/4" BSP or NPT

3/4" FL1, FL2, FL3 or FL4

43mm RF Dia Wafer

75mm

140mm

50mm

ST/GX 025 1" 5-70 1" BSP or NPT
1" FL1, FL2, FL3 or FL4
52mm RF Dia Wafer

88mm

152mm

50mm

ST/GX 038 1 1/2" 10-140 1 1/2" BSP or NPT
1 1/2" FL1, FL2, FL3 or FL4
73mm RF Dia Wafer

114mm

155mm

64mm

ST/GX 050 2" 18-252 2" BSP or NPT
2" FL1, FL2, FL3 or FL4
92mm RF Dia Wafer

133mm

165mm

76mm

ST/GX 080 3" 35-490 3" FL1, FL2, FL3 or FL4
127mm RF Dia Wafer

165mm

100mm

ST/GX 100 4" 70-980 4" FL1, FL2, FL3 or FL4 210mm
ST/GX 150 6" 140-1960 6" FL1, FL2, FL3 or FL4 240mm
Maximum Pressure BSP & NPT Style 250 bar
FL1 Style 19 bar
FL2 Style 29 bar
FL3 Style 16 bar
FL4 Style 25 bar
WAF Style 100 bar

 

ST/GX Gas Turbine Meters - ATEX Certified
ST/GX Gas Turbine Meters - ATEX Certified
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ST/GX Gas Turbine Meters - ATEX Certified
ST/GX Gas Turbine Meters - ATEX Certified

Heat Tracing - Thorne & Derrick