Series of flow meters provide versatility and durability in all environments
Aug 05 2019 Read 606 Times
Macnaught, the Australian-owned designer and manufacturer of flow meters and fluid transfer instruments are represented throughout the UK by Bell Flow Systems. With their oval gear technology and revolutionary modular design, Macnaught’s MX Intrinsically Safe Industrial Meters are offering their clients their most advanced positive displacement oval gear flow meters. The MX Ex are ATEX approved, rated Ex ia IIC (Class 1 Zone 0), approved CSA and FM and manufactured from robust stainless steel (316). This allows oval gear technology to be used in applications requiring precise flow measurement in hazardous areas.
Oval gear flow meters measure the volumetric flow rate of a moving fluid, the two rotating oval gears divide the material into fixed, metered volumes. They have been widely recognised as one of the most versatile, accurate flow measurement solutions that are not affected by variations in temperature, viscosity, or pressure. Maintenance on these meters are minimal too because the moving parts inside the meter body are limited to the pair of robust oval gear rotors.
The MX Ex flow meters are ideal for the precise transfer or dispensing of thin or viscous fluids, corrosive chemicals and non-conductive liquids in environments where there is the potential of exposure to flammable gases, or vapours. This operating principle means that the meters do not require flow conditioning or straight pipe runs and can be used in installations where space is limited without a detrimental effect on performance. The MX-Series meters can also be easily and efficiently dismantled, serviced and reassembled whilst still in the line, and without the need for any special tools or training.
The MX Ex series are available in ¼” (8mm) up to 2” (50mm), with flow ranges from 0.13 GPH to 132 GPM and an accuracy of ±0.5%. They are equipped with Macnaught’s versatile M-Lock mounting system, allowing the pulsers and displays to be installed and exchanged in less than 15 seconds. Therefore, these oval gear flow meter displays can be replaced without having to disassemble the meter or remove it from service. A quarter turn is all that would be required to change pulse modules or replace with an LCD Screen.
Macnaught offer two models of pulser approved for use in hazardous areas, the first is the MXD-BS; an intrinsically safe (Ex ia) NPN open collector, ATEX, IECEx, CSA and FM approved with an IP67 rated housing for use with temperatures up to 85˚C. The second pulser is the MXD-CS; a flame-proof (Ex d) NPN open collector, also ATEX, IECEx, CSA and FM approved with an IP67 rated housing for use with temperatures up to 85˚C.
Each meter is individually tested and calibrated before dispatch as well as being able to gain access to a full range of spare parts that are readily available. Finally, all MX-Series meters are backed with a 2 year factory warranty.
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