New ultrasonic flowmeter for superheated steam.

A dedicated ultrasonic flowmeter, OPTISONIC 8300,  for the measurement of superheated steam is presented by Krohne. The 2-beam flowmeter stands out with a measuring accuracy of 1 %, high repeatability, and a large dynamic measuring range. Typical applications include boiler and plant efficiency monitoring in (power) plants, energy balancing or inter-company steam billing.

As downtime of steam pipes is very costly and must be avoided, the unit was build for long term use: it features a full bore flow sensor without moving parts or obstructions, and an overall sturdy and robust construction with no cables or sensitive parts exposed. Therefore, it can uphold its measuring accuracy without maintenance or subsequent calibration for up to 20 years, while keeping operating costs at a minimum. If verification of the measuring accuracy should become necessary, it can be provided by using the flowmeter diagnostics, without removing the flowmeter.

With nominal sizes ranging from DN 100...1000 / 4…40", OPTISONIC 8300 is particularly suited to high flow rates. Pressure rating up to 200 bar / 3625 psi and temperature rating up to 540 °C / 1004 °F are available, higher requirements on request. With temperature and pressure sensors connected to the device, the integrated flow computer can calculate steam mass flow.

OThis instrument adds to Krohne's portfolio of ultrasonic process and custody transfer meters for liquids and gases, ranging from compressed air to liquid natural gas (LNG).

• Krohne products are marketed by DWN Instrumentation in Ireland.