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Get couponsPrinciple and Features
The SN52H Series Impeller Flow Sensor is a compact, intelligent flow and temperature switch. It integrates flow and temperature sensing with smart features such as small size and easy setup. With a built-in intelligent circuit, it allows users to freely set upper and lower alarm limits for both flow and temperature, and supports remote monitoring of real-time flow and temperature conditions. All parameters can be set on site. The impeller measures the medium’s flow, while temperature data is processed via the sensor’s intelligent circuitry and allows for custom programming.
Key Features:
Hall-effect pulse output, open-collector PNP/NPN, strong driving capability
Excellent chemical corrosion resistance
IP65 protection level, suitable for harsh environments
Easy to install with insertion design
Good stability and strong anti-interference capability
High reliability and maintenance-free


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Flow Velocity Range |
0.15~6m/s |
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Pipe Diameter Range |
DN15–DN600 (½" – 24") |
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Power Supply Voltage |
DC 5~24V |
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Repeatability/Linearity |
±1.5% of Full Scale |
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Wetted Parts |
Sensor Body |
304 Stainless Steel |
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O-Ring |
FPM/EPDM |
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Impeller |
630 Stainless Steel |
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Shaft/Bearing |
irconia (ZrO₂) Ceramic |
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SN52H- |
P |
25 |
A |
1 |
A |
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T |
Detailed |
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SN52H- |
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SN52H Series Insertion Type Impeller Flow and Temperature Sensor |
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P |
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PNP output |
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N |
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NPN output |
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M |
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Pulse output |
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25 |
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Pipe diameter: DN25 |
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32 |
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Pipe diameter: DN32 |
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40 |
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Pipe diameter: DN40 |
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DN... |
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Specify the exact pipe diameter when ordering (DN15–DN600) |
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B |
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Impeller material: 630 stainless steel |
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1 |
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Body material: 304 stainless steel |
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A |
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Shaft: ZrO₂ |
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1 |
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2 flow switch outputs |
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2 |
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2 temperature switch outputs + 1 temperature 4–20 mA output |
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3 |
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2 flow switch outputs + 1 flow 4–20 mA output |
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4 |
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1 temperature 4–20 mA output |
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5 |
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1 flow 4–20 mA output |
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6 |
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2 analog 4–20 mA outputs (temperature, flow) |
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7 |
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4 switch outputs (temperature, flow) |
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8 |
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RS485 |
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T |
Default temperature range: 0–100°C |
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T... |
Customized temperature range |
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The selection table is for parameter selection only. Final product will be manufactured based on corresponding code. |
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Shanghai Kayuan Electronic Technology Co.,Ltd is an enterprise specializing in the production and R & D of industrial sensors and controllers. Its main products include switches and sensors for flow, pressure, temperature, and liquid level. Insert impeller flow temperature sensor-SN52H Suppliers in China.
In 2008, our assembly plant was established in Shanghai China,PAKU INTELLIGENT EQUIPMENT(SHANGHAI)CO.,LTD a subsidiary of Kayuan to produce the PAKU series of products. As Insert impeller flow temperature sensor-SN52H Factory, PAKU products are now widely used in different industries, including automation complete sets of equipment, petroleum equipment, chemical equipment, power equipment, welding equipment, steel equipment, metallurgical equipment, automobiles, and water treatment. We adopt advanced technology and manufacturing processes across the board. With our professional design and production technology, comprehensive product lines, excellent quality, and sales network services, we can not only provide users with timely and professional technical support but also offer high - quality one - stop services.
We have served many customers at home and abroad, and offer Insert impeller flow temperature sensor-SN52H Wholesale, our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia. We welcome extensive cooperation with OEM and ODM customers.