『Kobold Ultrasonic Flow Meter Setup: Permanent Inline Transit-Time Systems for Pure Condensate Water』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Kobold Ultrasonic Flow Meter Setup: Permanent Inline Transit-Time Systems for Pure Condensate Water
Quick Answer: For pure condensate water, a permanent inline transit-time ultrasonic flow meter works well because it needs no conductivity and can handle temperatures up to 150 C. Silver Automation Instruments supplies DN15 to DN300 inline transit-time meters with 4-20 mA HART, RS485 Modbus, and PT100 input. Send us your pipe size in DN, pressure in bar, temperature in C, and flow range in kg/h to get a price quote.
Why Pure Condensate Water Needs a Different Flow Meter
Pure condensate water has very low conductivity. A value below 5 microsiemens per centimeter is common. Magnetic flow meters need a minimum conductivity to operate. This is a known limitation in power plants and steam systems. For this reason, many engineers search for a Kobold ultrasonic flow meter setup as a reference. Silver Instruments offers an alternative inline transit-time system that measures flow without liquid conductivity.
How a Permanent Inline Transit-Time Meter Works
Transit-time ultrasonic meters use two transducers. One transducer sends an acoustic signal downstream. The other sends a signal upstream. The flow changes the travel time of each signal. The meter calculates the time difference and then calculates flow velocity. No moving parts are used. No pressure drop is added to the line. This design fits pure condensate, demineralized water, and boiler feedwater lines.
Installation Rules for Condensate Service
In practice, most engineers skip the clamp-on meter for permanent condensate service. A permanent inline meter works best with a full pipe. Install the meter with 10D of straight pipe upstream and 5D downstream. The letter D stands for pipe diameter. Avoid locations right after a steam trap. Flash steam can cause unstable readings. If possible, place the meter after a condensate receiver or downstream of a cooling section. For horizontal lines, mount the meter in a lower section of the pipe run to keep the transducers immersed.
Model and Output Options
Silver Instruments model SUL-300 covers DN15 to DN300. Accuracy is plus or minus 1.0 percent of rate for flow velocity above 0.3 m/s. Repeatability is plus or minus 0.2 percent. The body is available in SS304 or SS316L. The process temperature rating is 150 C. Pressure rating is PN40. Standard outputs are 4-20 mA HART, pulse, and RS485 Modbus RTU. A PT
Comparing a Kobold Setup with a Silver Instruments Meter
We have quoted replacements for customers in Nigeria, Vietnam, and Chile who had a Kobold ultrasonic flow meter specification. Our application team can match flange standards, face to face dimensions, and output signals. This reduces startup time and avoids piping changes. Send us the existing tag data or a photo of the old nameplate. We will confirm the correct size and configuration.
How to Request a Quote
Send us your pressure in bar, temperature in C, pipe size in DN, and flow range in kg/h or m3/h. We will return a price and a setup drawing within 24 hours. Contact Silver Automation Instruments at +86-25-68650347. WhatsApp number is +86-25-52155837. WeChat ID is +86 15365082610. Mention the word condensate in your message for faster routing.
Frequently Asked Questions for Pure Condensate Flow Measurement
Can a transit-time ultrasonic meter measure pure condensate water? Yes. The meter does not need liquid conductivity. It measures the time difference of acoustic signals. The pipe must stay full. Gas bubbles and solid particles should be avoided for stable readings.
What is the minimum pipe size for an inline permanent meter? We offer DN15 to DN300. Below DN15, flow velocities are often too low for reliable transit-time measurement. A bypass arrangement may work for small lines. Provide the outer diameter and wall thickness if you use a tube instead of a pipe.
What outputs are available for boiler control or energy monitoring? Standard options include 4-20 mA HART, pulse output, and RS485 Modbus RTU. You can add PT100 input for temperature compensation and heat calculation. HART allows remote setup and diagnostic checks.
How much straight pipe run does the meter need? We recommend 10D upstream and 5D downstream. If a pump or a partially open valve is closer than 10D, use a flow straightener. For steam condensate, avoid mounting directly after a steam trap. Flash steam will disturb the acoustic signal.
What details do you need for a fast quote? Send pressure in bar, temperature in C, pipe size in DN, flow range in kg/h, and pipe material. Confirm if the installation is in a hazardous area that needs ATEX or IECEx certification. We respond with a price, lead time, and an outline drawing.
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