DEREX has over 43 years experience working with process equipment related to piping systems. We have rented and furnished Ultrasonic Flow Meters for hundreds of liquid flow applications. They strap to the outside of the pipe, requiring nothing to be inserted into the pipe. The advantage is obvious.

Rental and Sales
Portable Flow Meters for Rental are normally in stock available for immediate shipment. Custom built Flow Meters for Sales can normally be delivered within a few weeks. TFXP Transit Time Flow Meter is best for cleaner liquids and liquids with moderate amount of suspended solids. This is our most popular meter. For heavy sludge's and slurries use the Portable Doppler Series 902 Flow Meter below. Let us know your process conditions. We will then send you a quotation for your application. Flow Meters ship complete, with modified factory manual, to make them easy to operate.

This is our Doppler Portable Flow Meter. Very easy to operate. Mount the transducers on the pipe, punch in the ID of the pipe, turn the sensitivity knob until the light shows green and observe flow rate and total on the indicator.

(Available for Rent or Purchase. Click here for more information.)

UFX Hand Held Flow Meter, does not require any hardware or mechanical apparatus inside the pipe at all. Apply silicone grease to the transducer, hold it to the pipe and observe flow rate on the indicator.

(Available for Rent or Purchase. Click here for more information)


TFXP Transit Time Ultrasonic Flow Meter by Dynasonics

This is our TFXP Transit Time Portable Flow Meter by Dynasonics. There is nothing inside the pipe. Two transducers clamp to the outside of the pipe. Pipe and media data is chosen from the basic menu via the keypad. Display shows spacing distance for the transducers, than shows rate and total.


(Available for Rent or Purchase. Click here for more information)