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Glass tube flow switch-SN31

Product introduction

Inline installation, mechanical flow switch for liquid or gas media. Rugged housing available in plastic, aluminum, or stainless steel. Features extremely low pressure loss, good repeatability, strong resistance to contamination, and complete isolation between mechanical and electronic parts. Suitable for small flow, economical applications. Comes with a switch point scale — no on-site setting required by the user. LED display indicates switch status.

Technical Specification Hersman Type Selection Table Product Application

Setting range: See detailed parameters
Accuracy: ±5% of full scale
Hysteresis: Switching point: 1L/min
LED Display: LED indicates switching status (DC power only; no LED for AC)
Wiring Method: M12 Connector / Hirschmann Connector
Output: Reed switch
Pressure Resistance: 10 bar (Brass)
Medium Temperature: Max 90℃

Protection Class: IP65 / IP67
Material:
Housing: Aluminum alloy
Connection Material: Brass
Viewing Window: PE
Piston: Aluminum
Spring: Stainless steel
Seal: NBR

SN31- D A A

Detailed

SN31-                 SN31 series glass tube flow switch
                Interface thread G1/4
                Interface thread G1/2
                DC DC24V±20% power supply
                AC AC230V ± 15% power supply
      D           LED indicator (24V power supply
      W           No LED indicator
        A         internal thread
                aluminium alloy housing
                The action point 0.5 1.5 L/min
              A   Connector type (standard with 2
              B   Hersman type
                1 switch point 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.

Dual-use for gas and liquid. Industrial automation / Machinery / Air compression industry / Refrigeration and air conditioning.

Shanghai Kayuan Electronic
Technology Co., Ltd.

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.

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. 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.

The company has set up various departments such as the purchasing department, R & D department, quality management department, finance department, sales department, after - sales department, general office, laboratory, archive room, calibration workshop, production workshop, inspection area, storage area, shipping area, and tea break rooms, aiming to provide products of excellent quality and sincere services.

We adhere to the customer - centric concept of creating value for customers. According to the industry needs of customers, we continuously update technology and optimize services, aiming to become a leader in the field of process automation.

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 have served many customers at home and abroad, and our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia.

In the increasingly competitive global market in the future, PAKU will, as always, serve a wide range of domestic and foreign customers with excellent quality, reasonable and competitive prices, on-time delivery, and perfect after-sales service. We welcome extensive cooperation with OEM and ODM customers.

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