AW-Lake variable area flow meters are accurate, dependable flow monitors configurable for numerous applications. These meters use a variable annular orifice with compression spring recoil allowing unrestricted mounting for vertical, horizontal or inverted installation. A rugged, reliable construction is used so these AW-Lake variable area flow meters can withstand outdoor/exposed applications and frequent maintenance wash-downs .

The bodies of the AW-Lake variable area flow meters can be ordered in aluminum, brass, or stainless steel to meet most chemical compatibility and pressure rating needs. These AW-Lake variable area flow meters have a measuring accuracy of ±2.5% of full scale in the center third of the measuring range, and ±4% in upper and lower thirds. AW-Lake variable area flow meters also feature a stainless steel sharp-edged orifice for durability and viscosity stability .

The product line includes several specialized versions: Basic In-Line Liquid Flow Rate Meters for water, case drain flows, and hydraulic circuits; Pneumatic Flow Meters for air compressor outputs, pneumatic tools, and industrial gases; High-Temperature Flow Rate Meters for thermal transfer fluids up to 400°F or 600°F; Flow Rate Alarms / Flow Switches with up to two field-adjustable SPDT switches; Phosphate Ester Flow Rate Meters for aviation lubricants and fire-retardant fluids; Flow Rate Transmitters with analog 4-20mA, 0-5V, 1-5V, and 20-2000Hz square-wave pulse output; and Hydraulic System Test Analyzers with flow meter, pressure gauge, temperature gauge, and precision load valve .