MWA Technology
MWA Technology Limited, Offices & Workshop,
2 Wharton Street Ind. Est., Birmingham, West Midlands, B7 5TR

+44 (0) 121 327 7771


Nixon Turbine Gas Meter

NT3 - NT150
Nixon Turbine Gas Meter available at MWA Technology
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Nixon Turbine Gas Meter

NT3 - NT150
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The Nixon range of turbine flow meters offers high accuracy and high reliability. Available in a wide variety of body sizes and styles, all NT flow meters possess an electrical pulse output directly proportional to flow rate, based upon the operating principle described in this publication. Remote flow rate indication, alarms, totalising and batch control functions are available utilising our wide range of secondary electronic instruments.

Standard end connections are screwed BSP parallel thread with included 30 degree internal cones to BS5200, but Ermeto threads are also available. Flanged meters are normally to ANSI 150 or BS4504 (DIN) standards, but older type flanges to BS10 tables D-H may also be fitted. A unique feature of the design is the use of helically milled rotors cut from solid in sizes up to 65mm.

Bearing bushes are of PTFE/Carbon HY49 or similar, or tungsten carbide depending upon the nature of the metered fluid. In all cases, the spindle is of tungsten carbide with Cobalt binder, and thrust balls of tungsten carbide. Stainless steel ball races are used in the smaller sizes. The electrical signal is a sinusoidal pulse of minimum height 50mV peak at lowest flow rate, rising to 800mV peak at max flow rate. For normal transmission distances pre-amplifiers are not essential since pulse shaping and conditioning are carried out in the appropriate electronic readout unit.

In cases where heavy electrical noise is present or where transmission distances are over 500 metres, pre-amplifiers of standard or intrinsically safe design are available as head mounted weatherproof units and loop powered.

NT Industrial Flow Meters

  • Temperature range -30°C to 150°C (400°C special design)
  • Horizontal or vertical mounting
  • Upto 500m transmission without pre-amplifiers
MWA Code Fitting Minlts/min Maxlts/min
NT3 ⅜” Screwed 0.5 5
NT5 ½” Screwed 1.2 10
NT7 ½” Screwed 2 20
NT11 ½” Screwed 5 50
NT13 ¾” Screwed 8 80
NT19 1” Screwed 15 150
NT24 1” Screwed 25 250
NT32 1¼” Screwed 45 450
NT38 1½” Screwed 65 650
NT48 2” Screwed 110 1100
NT65 3” Screwed 200 2000
NT80 3” Flanged 300 3000
NT100 4” Flanged 500 5000
NT150 6” Flanged 1000 10000

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