Principle, structure
Plug in installation, mechanical flow switch. Built in micro trigger switch.

characteristic
Capable of measuring bidirectional flow in pipelines, with low pressure loss, good repeatability, and anti fouling ability. The mechanical and electronic parts are safely isolated. There are 5 types of stoppers attached during delivery, which can be flexibly combined and used by users according to the on-site situation when the pipe diameter is large, the flow rate is low, or the pipe is not fully filled. The same switch can be used for multiple pipelines.
function
To open or close a circuit by detecting the presence or absence of flow in the pipeline. It is usually used in heating, air conditioning, refrigeration, water treatment, pressurized water supply, industrial additives and other systems. Through it, the following equipment can be controlled: water pump, burner, compressor, chiller, electric valve, alarm device, industrial additive equipment, etc. In the heating system, its role is particularly important. When the return water flow of the boiler system is too low or there is no flow, it can quickly shut down the burner to prevent dry burning and overheating of the boiler system, and avoid frequent intervention of other temperature control components.
Technical Parameter
Repeatability: | ± 2.5% total range | Medium temperature: | 0~90℃ (-30~350℃) | |||
Wiring method: | Terminal wiring | Interface method: | NPT1″ | |||
Output: | Mechanical switch normally open | Protection level: | IP67 | |||
Voltage resistance: | 16 bar (40 bar optional) | |||||
Average pressure loss: | 0.08 bar (at maximum flow rate) | Medium temperature: | Main body: 316L stainless steel | |||
Environmental temperature: | -25…80℃ | texture of material: | Normally Open (N.O.) |
Applicable Medium

dimension

Model Selection Table
FB33- | Bidirectional block type flow switch | ||||
Thread Details | |||||
Threaded interface: NPT1″ | |||||
Connection method | |||||
External thread | |||||
Material Description | |||||
Brass alloy structure UNI EN 12165 CW617N | |||||
Stainless steel 1.4435 (316L) | |||||
(Special alternative) VARIO | |||||
High pressure resistance of 40bar | |||||
The above selection table does not include selection codes. If you need selection codes, please contact us or fill in your information |
Welding optional accessories
K30 | explain | |
NPT1 "base | ||
Heterogeneous connection |