Company Profile

Magflow Technologies: Full-Bore Electromagnetic Induction Processing Instruments

Quick Answer: Silver Automation Instruments supplies Magflow Technologies full-bore electromagnetic induction processing instruments for conductive liquids from DN15 to DN2000. These instruments suit water, wastewater, chemical, food and beverage, and desalination processes. Send your pipe size, flow range, pressure, and temperature for a firm price quote.

What Are Full-Bore Electromagnetic Induction Processing Instruments?

A full-bore electromagnetic induction processing instrument has a sensor bore that matches the nominal pipe diameter. The measuring section does not reduce the pipe internal diameter. This design avoids pressure loss and lets solids pass without hanging up at a reduced bore.

These instruments measure flow by electromagnetic induction. Two coils create a magnetic field across the liner. Conductive liquid moving through the field generates a small voltage. Two electrodes detect that voltage. The transmitter converts the voltage into flow rate, totalised flow, and velocity.

The Magflow Technologies full-bore electromagnetic induction processing instruments can handle liquids with conductivity as low as 5 µS/cm. This covers potable water, raw water, wastewater, acids, caustics, slurries, pulp stock, and many food products. The full-bore design works well for dirty liquids because the liner and electrode surface stay flush with the pipe wall.

Key Specifications That Affect Your Selection

Silver Instruments orders these instruments from DN15 to DN2000. Standard accuracy is 0.5 percent of reading for velocities above 0.3 m/s. Optional accuracy is 0.2 percent of reading for batch loading and high accuracy batching.

Process connections include DIN PN10 to PN40, ANSI 150 to 300, and JIS 10K to 20K. Flange materials include carbon steel and 304 stainless steel. The measuring tube can be 304 stainless steel with a welded liner. Liner options include hard rubber, soft rubber, PTFE, PFA, and polyurethane. Electrode options include 316L stainless steel, Hastelloy C, titanium, tantalum, and platinum.

Outputs include 4-20 mA HART, pulse, RS485 Modbus RTU, and optional Profibus PA. Power supply is 220 V AC or 24 V DC. Ingress protection is IP67 standard and IP68 for continuous submersion. For hazardous areas, Silver Instruments can supply ATEX Zone 1 and IECEx models with flameproof or intrinsic safety protection.

Liner and Electrode Selection for Common Fluids

Seawater and desalination brine call for titanium or Hastelloy C electrodes with a PTFE or PFA liner. Strong acids and solvents often need PTFE lining. Food and beverage lines usually use PFA or PTFE with 316L electrodes because clean in place cycles involve hot caustic and acid.

Slurries and mining fluids wear soft rubber liners faster than polyurethane or hard rubber. We have seen a titanium dioxide slurry line in Southeast Asia run for more than three years on a polyurethane liner before the first electrode cleaning. A wastewater plant in Australia uses hard rubber liners on raw sewage and flushes the electrodes once per quarter.

These are not universal rules. Send the full fluid composition to Silver Instruments before you lock in a liner. Most engineers skip this part when the fluid looks simple. Trace chemicals and temperature swings change liner life quickly.

Where These Instruments Work Best

The typical customer base covers water treatment plants, desalination projects, chemical dosing systems, food and beverage batching, marine cooling water, and pump stations. A service contractor in Oman installed full-bore electromagnetic meters on seawater intake lines at a desalination plant because the design does not create an extra pressure drop on the intake pumps.

A paint manufacturer in Vietnam replaced turbine meters on solvent batchi