Collection:Flow meters

Flow meters measure how much liquid or gas flows through a pipe. Depending on the type, they show the flow on a scale or a display, keep a running total, or send a signal to a control system. The subcategories are sorted by measuring principle. Variable area flow meters show the flow of water or oil on a scale and need no power supply; metal versions with viscosity compensation suit oil at high pressure. Bürkert paddle wheel flow meters measure clean, thin liquids such as water, coolant or thin oils. Bürkert magnetic flow meters measure electrically conductive liquids, also with solids or fibers, but not oil or demineralized water.

Paddle wheel meters come as inline meters (a sensor fitting plus a transmitter) or as one-piece insertion meters; magnetic meters as insertion meters.

Hygienic flow meters with a full-bore stainless steel tube suit food-grade liquids and can be cleaned in place. Ultrasonic flow meters measure heating and cooling water in building systems. Calorimetric flow meters measure the flow velocity and temperature of water-based liquids with a heated probe and switch at set limits; they are not for oil.

For compressed air, thermal flow meters measure the air flow in Nl/min (normal liters per minute) and the total consumption, which helps to find leaks. Separate sensor fittings and transmitters for modular Bürkert meters are listed under Bürkert flow meter components, and the variable area meters with switch contact, the calorimetric and the thermal compressed air flow meters also under flow switches.