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Get couponsInline installation, mechanical flow switch for liquid or gas media. Rugged housing available in plastic, aluminum, or stainless steel. Extremely low pressure loss, good repeatability, strong resistance to contamination, and complete isolation between mechanical and electronic components. Designed for small-flow, economical applications. Equipped with a switch point scale — no on-site adjustment required by the user. Flow rate is indicated on the graduated glass tube.
Dual-use for gas and liquid. Industrial automation / Machinery / Air compression industry / Refrigeration / Lubrication systems / Air conditioning.

Setting Range: See parameter details
Accuracy: ±5% of full scale
Hysteresis: Depends on the switching point, minimum 3L/min
Wiring Method: M12 connector / Direct cable output
Output: Reed switch
Pressure Resistance: 10 bar
Medium Temperature: Max 90°C
Protection Class: IP65
Material:
Housing: Aluminum alloy (viewing window in PE material)
Piston: POM plastic
Spring: Stainless steel
| SN31B | - | A | 1 | G | L | 1 | 1 | A | 1 |
Detailed |
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| SN31B | - | SN31B series glass tube flow switch | |||||||||||
| A | Interface thread: G1/2 | ||||||||||||
| B | Interface thread: G3/4 | ||||||||||||
| C | Interface thread: G1" | ||||||||||||
| 1 | DC DC24V±20% power supply | ||||||||||||
| G | internal thread | ||||||||||||
| L | Process connection: aluminum alloy | ||||||||||||
| X | Process connection: stainless steel | ||||||||||||
| 1 | aluminium alloy housing | ||||||||||||
| 1 | Range: 3-30L/min | ||||||||||||
| 2 | Range: 5-50L/min | ||||||||||||
| 3 | Range: 8-80L/min | ||||||||||||
| A | Connector type (standard with 2 | ||||||||||||
| B | Straight out | ||||||||||||
| 1 | 1 switch point output | ||||||||||||
| 2 | 2 switching points output | ||||||||||||
| * Customizable thread, H for external thread, G for internal thread * For selection of electrical accessories and installation accessories, please refer to the appendix page on page - * The selection table is only available for parameter selection, and the corresponding code is delivered。 |
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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. Mechanical glass tube flow switch-SN31B 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 Mechanical glass tube flow switch-SN31B 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 Mechanical glass tube flow switch-SN31B 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.