Company Profile

Flexim Flow Meters: High-Temperature External Clamp-On Permanent Network Monitors

Quick Answer: Flexim high-temperature external clamp-on flow meters measure flow on hot pipes up to 600°C without cutting the line or stopping the process. Silver Automation Instruments supplies similar clamp-on ultrasonic meters for permanent network monitoring in oil and gas, chemical, marine, and utility plants. Send us your pipe size (DN), fluid temperature (°C), pressure (bar), and flow range for a quotation.

Most engineers who manage hot process lines know the problem. Cutting a pipe for a flow meter costs time, requires shutdown, and adds leak points. External clamp-on meters avoid that work. Flexim has built a strong name in this niche because its high-temperature transducers can handle steam condensate, hot oil, and superheated water lines. In practice, we see these meters installed on heat transfer systems, boiler feed lines, and refinery product pipes across Southeast Asia, the Middle East, and Latin America.

Where Flexim High-Temperature External Clamp-On Meters Fit

Flexim models such as the FLUXUS G and F series use transit-time ultrasonic technology. The transducers clamp on the outside of the pipe. They do not contact the fluid. This matters for corrosive liquids, high pressure, or pipes that cannot be tapped. High-temperature versions use special mounting fixtures and coupling foils. These fixtures keep the transducers aligned and protect them from heat. The meters then send data over 4-20 mA HART, Modbus RTU, or Ethernet to a plant network.

Permanent network monitoring means the flow meter stays on the pipe for years. It sends real-time flow rate, total flow, and diagnostics to a PLC or SCADA system. This is common in district heating, chemical batch processes, and offshore platform water injection lines. A customer in Vietnam asked us last year for a retrofit on a hot oil line at a paint plant. The pipe was DN80, the oil ran at 220°C, and the plant did not want to stop production. An external clamp-on meter solved that.

Silver Instruments Alternative for High-Temperature Clamp-On Monitoring

Silver Automation Instruments supplies clamp-on ultrasonic flow meters for permanent network monitoring. Our standard clamp-on transducers handle fluid temperatures from -30°C to 160°C. For hotter lines, we offer high-temperature brackets and coupling pads rated for continuous use up to 350°C. This covers many hot water, thermal oil, and condensate return systems. We do not claim to replace every Flexim model. But for pipes from DN15 to DN600, our meters provide a lower cost second source. Outputs include 4-20 mA, pulse, RS485 Modbus, and HART. Accuracy is typically 1 percent of reading for clean liquids.

For plants that currently use Flexim FLUXUS G or F series high-temperature meters, Silver Instruments can supply a second source with similar signal output and mounting style. We configure the transducer frequency to match the pipe size and wall thickness. Our technical team asks for the existing meter settings or a photo of the installation. That helps us propose the right transducer pair and bracket.

Here is the thing. Many plants need a permanent flow meter that works, not a long brand approval process. We have seen this on customer sites many times. A procurement team in the UAE needed a clamp-on meter for a seawater cooling line. They compared Flexim and Silver Instruments. The Flexim offer was strong, but the delivery time was long. Our unit shipped in 10 days and the software was easy to set up. That matters when a plant has a shutdown window.

Key Parameters You Need to Specify

If you request a quote, send us these details. Pipe outside diameter and wall thickness matter more than nominal bore. Fluid type, temperature, pressure, and flow range decide the transducer frequency and mounti