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CKD Flow Meter Sourcing: Pneumatic Airflow Digital Display Controllers
Quick Answer: If you are sourcing a CKD flow meter for a pneumatic line with digital display, first confirm tube size, flow range, output signal, and supply voltage. Silver Automation Instruments supplies compatible digital airflow controllers and thermal mass flow meters for compressed air, nitrogen, and clean gas lines. Send us your air pressure in bar, pipe size in DN or inches, and full scale flow in L/min or m3/h to get a specific quote.
What a CKD Digital Airflow Controller Does
A CKD digital airflow controller measures air flow rate in a pneumatic circuit. The unit has a local digital display so technicians can read L/min or m3/h directly at the panel or on the pipe. Many units include a 4-20 mA analogue output plus switch outputs for alarms. These devices are common on compressed air lines in food plants, packaging machines, and CNC tool shops.
In practice, many engineers ask for a CKD flow meter by brand because it is installed on an existing Japanese machine. The original controller may be obsolete or has a long lead time. We see this often on customer sites in Vietnam and Malaysia where packaging lines run 24 hours.
Key Specifications to Confirm Before Sourcing
Do not skip this part. A flow meter for a 6 mm pneumatic tube will not fit a 1 inch BSP pipe. You need four data points.
First, confirm the pipe or tubing size. Common sizes are 6 mm, 8 mm, 10 mm, 1/4 inch, 1/2 inch, and DN15. Second, define the flow range. Compressed air controllers often work from 0.5 L/min to 200 L/min or from 2 m3/h to 100 m3/h. Third, note the output. Many CKD digital airflow controllers have a 4-20 mA analogue output plus two switch outputs. Some use NPN or PNP transistors. Fourth, check supply voltage. Most industrial panels use 24 VDC.
Other details matter too. Process connection may be NPT, BSPP, or push in tube fitting. Accuracy is usually around plus or minus 3 percent of full scale for air flow switches and around plus or minus 0.5 percent for thermal mass flow meters. If the air line has oil mist, confirm the sensor is oil tolerant.
Silver Instruments Alternative for Pneumatic Airflow Measurement
Silver Automation Instruments supplies digital airflow controllers and thermal mass flow meters for compressed air and nitrogen. A common replacement for a CKD flow meter is a thermal mass flow meter with a digital display, 4-20 mA output, and a local totalizer. These units work on DN15 to DN50 pipes and handle flow ranges from 0.5 to 200 Nm3/h.
For small tube sizes, we offer inline airflow sensors with 6 mm and 8 mm push in fittings. They output 4-20 mA and have a small LCD display. The accuracy is around plus or minus 2 percent of full scale. These are cost effective for packaging machines and leak testing stations.
Here is the thing. A direct CKD replacement may not always be necessary. If the old flow controller only sends an alarm signal when flow drops, a digital flow switch from Silver Instruments can do the
Industries and Country Examples
We ship to Southeast Asia, Oceania, Latin America, Africa, and the Middle East. Last year a customer in Ho Chi Minh City replaced a CKD air flow switch on a filling machine. He sent us a photo of the nameplate and the tube diameter. We supplied a 24 VDC inline flow meter with a 4-20 mA output and a local display within six days.
A beverage plant in Peru needed compressed air monitoring on a DN25 header. They sent pressure of 7 bar, temperature of 25 °C, pipe size DN25, and flow range 5 to 80 Nm3/h. We quoted a thermal mass flow meter with a digital display and a 4-20 mA HART output. The unit was installed in a non Ex area, but we can quote ATEX Zone 1 versions if needed.
How to Send an Inquiry Without Long Emails
Most engineers skip this part and then wait longer for a quote. Send us these five values in the first message.
Air or gas type, pressure in bar, temperature in °C, pipe size in DN or inches, and full flow range in L/min or Nm3/h. Also tell us if you need a local display, 4-20 mA output, pulse output, or a flow switch with an alarm.
Contact Silver Automation Instruments at Tel: +86-135-1213-1526, Whatsapp: 86-135-12131526, or WeChat: +86 13512131526. You can also visit flow-meter.com.au to check product pages for thermal mass flow meters and digital airflow controllers.
FAQ: Five Questions Buyers Ask Before Sourcing
Can Silver Instruments supply an exact CKD flow meter model?
We do not sell CKD branded units. We supply compatible digital airflow controllers and thermal mass flow meters. If you send the original model number and pipe size, we can recommend a replacement.
What is the typical lead time for a pneumatic airflow controller?
Regular inline airflow switches and small thermal mass flow meters are often in stock or ready in 5 to 7 working days. Custom process connections or ATEX certification may add 2 to 3 weeks.
Do your airflow meters work with oil mist in compressed air?
Some sensors are oil tolerant. Tell us the oil concentration and we can choose a suitable sensor type. For high oil carryover, a thermal mass flow meter with a bypass design may be more reliable.
Do you offer a digital display with a 4-20 mA output?
Yes. Most of our compressed air flow meters include a local LCD display and a 4-20 mA output. Some models also include a pulse output or two switch outputs for alarms.
Can you quote an ATEX Zone 1 airflow meter for a chemical plant?
Yes. We supply ATEX approved thermal mass flow meters for Zone 1 and Zone 2. Send your gas type, pressure, temperature, and pipe size. We will quote the correct Ex certification.
Send us your pressure in bar, temperature in °C, pipe size in DN, and flow range to get a specific quote. A short message with these four values is enough for our engineers to recommend a model and price.
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