DN125 Heat Meters (5”) – Flanged

DN125 is the intermediate size between DN100 and DN150; in heating plants with pipework of this size, it allows metering without reducing the pipe diameter.

DN125 Heat Meter Dimensions

DN125 corresponds to a 5-inch pipe size. The manufacturer ZENNER states that it offers the IUF ultrasonic flow sensor series without gaps from DN50 to DN300, including the intermediate size DN125. For DN125, its data sheet gives a nominal flow rate (qp) of 100 m³/h, a maximum flow rate of 200 m³/h, a minimum flow rate of 1 m³/h, a body length of 250 mm or 350 mm and pressure class PN16; the unpacked weight is approximately 22–28 kg depending on the body length. DN125 is the first size in which the pulse value of the flow sensor rises to 250 liters; the calculator unit is set accordingly. Our site offers the Minol Zenner IUF model in this size; as its product page has no technical table, we confirm the length and flange details with you before ordering.

Model in This Size

• Minol Zenner IUF DN125 – flanged ultrasonic

Other sizes: DN50 · DN65 · DN80 · DN100 · DN150 · DN200 · DN250 · DN300 · Threaded models (DN20–DN40)

Frequently Asked Questions

How many inches is a DN125 heat meter?

DN125 corresponds to a 5-inch pipe size.

What is the nominal flow rate of a DN125 heat meter?

The manufacturer ZENNER’s data sheet for the IUF flow sensor gives a nominal flow rate (qp) of 100 m³/h and a maximum flow rate of 200 m³/h for DN125.