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Clamp On Compressed Air Flow Meter: Non-Invasive Factory CFM Leak Senses
Quick Answer
A clamp-on compressed air flow meter measures flow from outside the pipe. No cutting or welding required. It detects CFM (cubic feet per minute) and identifies leaks fast. This saves energy and cuts costs in factories using compressed air systems.
How the Non-Invasive Clamp-On Meter Works
The meter uses ultrasonic transit-time technology. It clamps onto the outside of a pipe. Transducers send and receive signals through the pipe wall. The meter calculates flow rate by measuring signal time difference. No contact with the gas. No pressure loss. No contamination risk. Silver Instruments clamp-on models work on steel and PVC pipes from DN15 up to DN200.
Silver Instruments Model GA-600 Clamp-On Gas Flow Meter
We recommend the GA-600 for compressed air and nitrogen applications. This model handles pipe diameters from DN25 to DN100. It outputs 4-20 mA HART and Modbus RTU. Accuracy is ±1.5% of reading. Field calibration is possible with a portable ultrasonic thickness gauge. You get real-time CFM, totalized flow, and temperature. The signal processor has a bright LCD. It logs data and can trigger an alarm if flow drops suddenly. That helps you spot leaks instantly.
Leak Detection in Factory Air Systems
In a typical plant, 20 to 30 percent of compressed air is wasted through leaks. Even small leaks add up. A clamp-on meter helps maintenance teams scan headers, branch lines, and point-of-use equipment. A paint factory in Malaysia used our GA-600 and found leaks equivalent to USD 8,000 per year in energy costs. They clamped the meter on a 2-inch schedule 40 pipe. The meter instantly showed a flow spike every time an
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Request a Quote with Your Pipe and Gas Details
Send us your pipe outer diameter (mm), pipe material, gas type, pressure (bar), temperature (°C), and the required flow range. We will recommend the correct clamp-on meter and provide a price. Contact Silver Automation Instruments: Tel: +86-135-1213-1526, Whatsapp: 86-135-12131526, WeChat: +86 13512131526.
Frequently Asked Questions
Q: Can the clamp-on meter measure wet compressed air?
A: The GA-600 works best with dry gas. Small amounts of moisture are acceptable, but heavy condensation weakens the signal. We recommend installing a moisture separator upstream in such cases.
Q: What is the minimum pipe size for the clamp-on sensor?
A: The standard GA-600 fits pipes from DN25 to DN100. For smaller lines down to DN15, we offer a compact sensor pair. Just tell us your pipe outer diameter during inquiry.
Q: Do I need to shut down the compressor to install the meter?
A: No. The clamp-on design means no pipe cutting and no process shutdown. You strap the sensors on while the line is running. Full measurement appears within minutes.
Q: How does pipe wall corrosion affect accuracy?
A: Heavy flaking or deep pits can scatter the ultrasonic signal. In practice, a light surface cleaning and applying couplant gel give you repeatable readings. We also offer a built-in signal quality check on the GA-600 display.
Q: Can this meter be used in ATEX Zone 2 areas?
A: Yes. We supply an ATEX Zone 2 certified version of the GA-600 for gas environments. Make sure to specify the zone classification and gas group when requesting a quote.