Gx Turbine Flowmeters
The Gx range of Turbine Flowmeters are suitable for the measurement of dry gases (inert and flammable) and are designed to operate at line pressures down to 15 mbar.
They 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 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“ Totalisers, 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.
GENERAL SPECIFICATIONS
Materials
| Body : | 316 Stainless Steel |
| Rotor Support : | 316 Stainless Steel |
| Ball Race Bearings: | 440C Stainless Steel |
| Rotor : | ANC1A Stainless Steel |
| Rotor Shaft : | 316 Stainless Steel |
Performance
| Linearity: | +/- 2.0% (better than 0.5% when used with "101" Totaliser) |
| Repeatability: | +/- 0.2% |
| Temperature: | -30°C to +120°C |
| Pressure Drop: | 12 mbar at maximum quoted Flow rate (based on test pressure 1 bar) |
Style
| BSP : | BSPP male Threaded | NPT : | NPT male Threaded |
| FL1 : | ANSI 150 Flanged | FL2 : | ANSI 300 Flanged |
| FL3 : | BS 4504 (DIN) PN16 | FL4 : | BS 4504 (DIN) PN25 |
| WAF : | Wafer |
Options
| IS: | Intrinsically Safe Pick Up. |
Gx Turbines fitted with the intrinsically safe pick up (IS option) are suitable for Hazardous Installations (Eex ia IIC T4)
Ordering
Order code: Gx / Style /Size / (Option)
e.g. Gx / NPT / 3/4 / IS
Internal Kits (calibrated) can be supplied. These are very easy to retrofit into an existing Body on location (eliminating the need to return to the Turbine).
Gx Internal Kit Order code: Gx / Style /Size
e.g. Gx / FL1 / 3
