ZWRY-LZ series metal tube rotor flowmeter is a variable area flowmeter based on fluid position measurement. It adopts all-metal structure and modular conceptual design. Because of its features such as small volume, small pressure loss, large range ratio (10:1), easy installation and maintenance, it is widely used in flow measurement and remote control of small flow, low flow rate and various harsh medium conditions in complex and harsh environments of various industries.

ZWZDH-100H series ultrasonic flowmeter is an instrument for measuring liquid flow in circular pipe based on the principle of velocity difference method. The instrument adopts digital analysis and error correction technology, which makes it more suitable for the harsh environment of industrial field, and it supports accurate and reliable measurement.