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FB35 baffle flow switch
The principle is that the structural flow switch includes a blade system (1) connected to a permanent magnet (2) at its other end, and above this magn
Product details
Principle, structure
The flow switch includes a blade system (1) connected to a permanent magnet (2) at its other end, and above this magnet is a reed contactor (3) placed outside the liquid. In addition, there is a magnet (4) with the same magnetic pole as the previous magnet, which generates a certain force to reset the switch to the no flow position. When the liquid rushes towards the stopper, the stopper swings, changing the relative position between the magnet (2) and the spring contactor (3), triggering the contactor. Once the liquid flow is interrupted, the blade returns to the starting position, triggering the contactor again. The mutual repulsion between the two magnets creates the force required for the magnet to reset. Replace general spring components with magnetic force to achieve stable and durable use, as well as insensitivity to pressure peaks.
main features
Low pressure drop switch point measurable
● Instant response withstand voltage of 250bar
Opening and closing depend only on flow rate and are not related to temperature or pressure
The reed contactor, as an induction element, is composed of two magnetic plates and placed in a glass tube filled with inert gas. This method eliminates the losses caused by contact combustion.
● Measurable switch points
● Pressure resistance of 250bar
Optional special function set points
The plug is equipped with an LED to display the flow rate
Optional pressure resistance of 250bar
The high-performance reed contactor has the function of closing the reed when the flow is interrupted and opening the reed when the flow is interrupted. Customers can change these settings according to their actual needs, or set the switch point on site within the flow.
Optional Features
Special set points
The plug is equipped with an LED to display the flow rate
Optional pressure resistance of 250bar
High switching performance reed contactor
function
When there is flow, the reed closes, and when the flow is interrupted, the reed opens. These settings can be changed by customers according to their actual needs, or switch points can be set on-site within the flow.
Pressure drop bar
Technical Parameter
| Bellows lifespan: | 100000000 times | ||
| Repeatability: | ± 2.5% total range | ||
| Delay: | Depending on the switch point, the minimum is 0.5L/min | ||
| Wiring method: | Terminal wiring | ||
| Voltage resistance: | 16 bar (250 bar optional) | ||
| Medium temperature: | 0…90℃(-30…50℃) | ||
| Environmental temperature: | -25…80℃ | ||
| Maximum switch current: | 1A | ||
| Maximum switch voltage: | 230VAC，48VD | ||
| Maximum capacity: | 26VA,20W | ||
| Protection level: | IP57 | ||
| texture of material: | |||||||||||
| Subject: | Electrical main body: | Plastic NORYL PPO GFN3 | |||||||||
| Process connection: | Bronze Gold/Stainless Steel 1.4301 (304) | ||||||||||
| /Stainless steel 1.4435 (316L) | |||||||||||
| Connecting rod: | Bronze Gold/Stainless Steel 1.4301 (304) | ||||||||||
| /Stainless steel 1.4435 (316L) | |||||||||||
| Block: | 316L stainless steel/plastic | ||||||||||
| Process pipe joint: | Bronze alloy | ||||||||||
| Stainless Steel 1.4301 (304)/Stainless Steel 1.4435 (316L) | |||||||||||
| Copper welding joint | |||||||||||
| PVC adhesive joint | |||||||||||
FB35-F online installation series schematic diagram
Parameter Table
| Model Type | Installation pipe diameter | thread specification | Adjustable range | Maximum throughput | size | ||||||||||||||||||
| d1 | Thread size | ||||||||||||||||||||||
| DN | L/min (increasing flow rate) | L/min (gradually decreasing flow rate) | L/min | copper | steel | ||||||||||||||||||
| FB35-F08(M) | 8 | G1/4 | 2.1…2.7 | 1.8…2.4 | 45 | 11 | 27 | 27 | |||||||||||||||
| FB35-F010(M) | 10 | G3/8 | 2.5…3.2 | 2.2…2.9 | 60 | 11 | 19 | 27 | |||||||||||||||
| FB35-F15(M) | 15 | G1/2 | 3.4…4.2 | 3…3.8 | 67 | 11 | 19 | 27 | |||||||||||||||
| FB35-F20(M) | 20 | G3/4 | 7.0…9.1 | 6.4…8.2 | 120 | 15 | 27 | 32 | |||||||||||||||
| FB35-F25(M) | 25 | G1 | 13.5…17 | 12…15.5 | 195 | 15 | 32 | 41 | |||||||||||||||
| FB35-F32(M) | 32 | G1-1/4 | 15.5…2.5 | 14.5…19 | 240 | 15 | 46 | 46 | |||||||||||||||
| FB35-F40(M) | 40 | G1-1/2 | 26.5…34.5 | 25.5…32.5 | 400 | 15 | 55 | 55 | |||||||||||||||
| FB35-F50(M) | 50 | G2 | 39.5…51 | 39…5. | 400 | 15 | 70 | 70 | |||||||||||||||
Note: The material options are in parentheses
M brass material
P plastic material
K1 stainless steel 1.4301 (304)
K2 stainless steel 1.435 (316L)
FB35-M plug-in dimension diagram
FB35-M Plug in Installation Options and Parameters Table
| Model Type | thread specification | Insert pipe diameter | Adjustable range | Maximum throughput | Insertion depth L3 | ||||||||||||||
| M ³/h (increasing flow rate) | M ³/h (gradually decreasing flow) | m³/h | mm | ||||||||||||||||
| FB35-M1（M） | G1/2 | DN50 | 1.9…2.7 | 1.8…2.6 | 30 | 51±1 | |||||||||||||
| DN80 | 5.0…8.0 | 4.9…7.9 | 80 | ||||||||||||||||
| DN100 | 8.3..12.5 | 8.2…12.4 | 150 | ||||||||||||||||
| DN150 | 17.5…25 | 17.4…24.9 | 200 | ||||||||||||||||
| FB35-M2（M） | DN100 | 5.7…6.3 | 5.6…6.2 | 100 | 111±1 | ||||||||||||||
| DN150 | 11…13 | 10.9…12.9 | 150 | ||||||||||||||||
| DN200 | 25…27 | 24.9…26.9 | 200 | ||||||||||||||||
| FB35-M3（M） | Welding head | DN50 | 3.8…4.9 | 3.7…4.8 | 30 | 24±1 | |||||||||||||
| DN80 | 9…14.3 | 8.9…14.2 | 100 | ||||||||||||||||
| DN100 | 13…18.8 | 12.7…18.4 | 150 | ||||||||||||||||
| DN150 | 33…46 | 32.9…45.9 | 200 | ||||||||||||||||
Note: The material options are in parentheses
M brass material
P plastic material
K1 stainless steel 1.4301 (304)
K2 stainless steel 1.435 (316L)
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