Thermal mass flow meter Installation position and requirement for pipeline
1.The installation of instrument should be far away from the elbow, obstacles, reducer, valves,
in order to assure a stable flow field, typically.Have a long straight pipe up and down, straight
long before more than 10 d, straight after long is greater than 5 d.
Often met in the figure below shows several ways of straight pipe required.
NO. | Pipeline In front of the pipe section | The back pipe section | |
(1) | straight pipe | 10 D | 5 D |
(2) | bent pipe | 10 D | 5 D |
(3) | flared tube | 15 D | 5 D |
(4) | downstream of the valve | 20 D | 5 D |
(5) | shrink tube | 20 D | 5 D |
(6) | Under the pump | 30 D | 5 D |