A low cost, 'entry level' sight flow indicator with a high sensitivity spinner operating from 0.5 l/min (water). The nitrile seals and nylon spinner give excellent chemical resistance which is further enhanced in the stainless steel version by the use of borosilicate glass as standard.
These self-cleaning indicators are used extensively in plant protection apllications to detect the loss of coolant or lubricant supply to pumps, compressors and engines.
As an added advantage the 400's can be used in any orientation.
