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LEFOO FS51/52 water flow switch for air condition,freezer freezer compressor system
Get Latest Price
US$ 40
≥5 Pieces
US$ 36
≥50 Pieces
US$ 34
≥500 Pieces
US$ 32
≥1000 Pieces
Quick Details
Media Type:
Liquid
Place of Origin:
Zhejiang, China
Brand Name:
LEFOO
Model Number:
FS5
Product Details
Products Description
FS series
liquid flow switch is designed for managing the flow changes when the liquid flows in the pipe, such as water, ethylene glycol or other non-hazardous liquids. When the liquid flow is higher or lower than the setting value, the single-pole double- throw contacts (SPDT) can get through one circuit and at meantime to break the other circuit. FS series liquid flow switch is commonly used for chain reaction or “no flow” protection.
Features
Max liquid pressure: 1 MPa, can be used in multiple applications. There are 3 stainless steel paddles, can be used in 25 to 75mm diameter pipe. Number of paddles is changeable and length of paddle is trim-able according to customer requirements. With additional 6''paddle, FS series liquid flow switch can be used in 100 to 150mm
diameter pipe. Adjustable flow setting, Users can set the flow value according to their requirements. For user convenience, FS52 flow switch has large room for wiring. FS51/FS52 can also be provided with stainless steel connection, which is suitable for
ammonia and other medium.
Application
The typically application is used to protect the cooling system, when the cooling water is off, FS flow switch can shut off the compressor current efficiently in order to protect the freezer and entire system from being damaged.
Performance Parameter
Electric load: AC250V 10A
Max working pressure: 10.34Bar
Flow temperature: 0-120℃
Environment temperature: 0-60℃
The endurance of bellows: 500000 cycles
Ingress protection: IP53
Specification (FS flow switch)
1. Above flow values are for the reference of choice
2. The figures with “ * ” symbol are for the 4 paddles flow switch. While, the figures without “ * ” symbol are for the 3 paddles (1, 2, 3 ) flow switch.
3. The paddles will be chose according to the flow in the main pipe where the flow switch is installed in.
Installation
1. Pipe connection: FS series flow switch be provided with 1", 1/2", 3/4" NPT connections.
2. The arrow direction in the cover must be as same as the flow direction in the pipe.
3. The flow switch is suggested to be installed on horizontal pipes, if it have to be on vertical pipes, then the direction in the pipe must be upward flow. It is not allowed to be installed on the vertical lines with downward flow.
4. To avoid the paddle damage, flow reversal is not allowed when the flow switch is working.
The paddle trimming figure
The paddle trimming figure
Attention
the paddles with “ * ” symbol are installed in factory
the paddle with “△ ” symbol is the additional paddle.(not installed)
the balance paddles are for trimming
when install the trimmed paddles, the end of paddle should keep 5--10mm distance from the pipe end and no friction with the pipe
the paddle with “△ ” symbol is the additional paddle.(not installed)
the balance paddles are for trimming
when install the trimmed paddles, the end of paddle should keep 5--10mm distance from the pipe end and no friction with the pipe
Order Ref No.
|
Code
|
Connection size
|
Connection Material
|
|
1
|
1"NPT
|
Brass (for water or other liquids
suitable for brass)
|
|
2
|
1/2"NPT
|
Stainless steel (for ammonia and
other liquids suitable for stainless steel)
|
|
3
|
3/4"NPT
|
|
Typical installation drawing
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