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Piston Type Micro Flow Switch-SN32B

Product introduction

In-line mounted, mechanical flow switches for liquid or gaseous media. Robust plastic, aluminium or stainless steel housing available. Extremely low pressure loss, good repeatability, dirt immunity, complete isolation of the mechanical and electronic parts for economical use with small flow rates. With a switching scale, the user does not have to set it in the field, LED indication of the switching status and a magnetic bead on the panel indicating the flow rate.

Product Application Insertion Fittina Technical Specification Wiring Diagram Dimension Figure Parameter List Selection Table

Pneumatic liquid dual purpose, industrial automation/mechanical equipment/air compression industry/refrigeration and air conditioning.

Hersman type

Setting range: See the parameter table for details
Accuracy: ±5% of total range
HySTERESIS: Depends on switching point, minimum 0.3L/Min
Switch setting scale: it is calibrated in water medium, temperature 20°C, horizontal installation state. The installation location, medium and temperature changes may affect the switch value slightly
LED display: DC power supply LED display switch status, AC without LED display
AC without LED display
Output: Dry reed switch, capacity 24VDC/250VAC,100mA
pressure: 10bar(plastic),
50bar (aluminum type),
100bar (stainless steel)
Average pressure loss: 0.3bar (at 25L/min)
Medium temperature: 100°C Max
Protection grade:IP65
FD20...Material: Shell: POM plastic
Piston :POM plastic
Spring: Stainless steel seal: NBR
FD20... L Material: Shell: anodized alumina
Piston: POM plastic
Spring: Stainless steel seal: NBR
FD20... Material: Shell: stainless steel
Piston: POM plastic
Spring: Stainless steel seal: NBR

Model Pressure
bar
Max. flow rate
L/mi(water)
Adjustable range
L/min(water)
G
mm
L
mm
H
mm
B
mm
X
mm
SN32B-008...2(3)B 50  40  0.6(0.1)  -8(7) G1/4 93  36  30  12 
SN32B-010..2(3)B 50  40  0.6(0.1)  -8(7) G3/8 93  36  30  15 
SN32B-015...2(3)B 50  40  0.6(0.1)  -8(7) G1/2 93  36  30  15 
SN32B-020...2(3)B 50  40  0.6(0.1)  -8(7) G3/4 105  38.5  35  15 
SN32B-025...2(3)B 50  40  0.6(0.1)  -8(7) G1 105  41  40  15 
SN32B-008...2(3)C 50  40  1(0.5)  -15 G1/4 93  36  30  12 
SN32B-010..2(3)C 50  40  1(0.5)  -15 G3/8 93  36  30  15 
SN32B-015...2(3)C 50  40  1(0.5)  -15 G1/2 93  36  30  15 
SN32B-020...2(3)C 50  40  1(0.5)  -15 G3/4 105  38.5  35  15 
SN32B-025...2(3)C 50  40  1(0.5)  -15 G1 105  41  40  15 
SN32B-015...2(3)D 50  40  2(0.8)  -25 G1/2 93  36  30  15 
SN32B-020...2(3)D 50  40  2(0.8)  -25 G3/4 105  36  35  15 
SN32B-025...2(3)D 50  40  2(0.8)  -25 G1 105  36  40  15 
SN32B-020...2(3)F 50  100  27(21)  -70 G3/4 105  38.5  35  15 
SN32B-025...2(3)F 50  100  27(21)  -70 G1 105  41  40  15 
SN32B- 008  G D D A A specification
SN32B-                 SN32B series field display type piston flowswitch
  008                Interface thread G1/4
  010                Interface thread G3/8
  015                Interface thread G1/2
  020                Interface thread G3/4
  025                Interface thread G1
    G             internal thread
      D           DC DC24V±20% power supply
      J           AC AC230V±15% power supply
           D         No LED indicator
           W         LED indicator (for DC24V only)
                plastic casing
                Anodized aluminium shell
                stainless steel housing
            A     setting range:0.3--7L/min
            B     setting range:0.6--8L/min
            C     setting range:   1--15L/min
            D     setting range:   2--25L/min
            E     setting range:   5--40L/min
            F     setting range:27--70L/min
              A   Connector type (standard with 2 meters of wire)
              B   Hersman type
                1 switch point output
 * Customizable thread, H for external thread, G for internal thread
 * Please indicate medium flow direction, medium type, pipe diameter and expected set value when ordering. We can complete the setting
 for you at the factory
 * For gaseous media, please indicate pressure (gauge pressure/absolute pressure), temperature and type of media
 * The selection table is only available for parameter selection, and the corresponding code is delivered.
Shanghai Kayuan Electronic
Technology Co., Ltd.
Shanghai Kayuan Electronic Technology Co., Ltd is an enterprise specializing in the production and R&D of industrial fluid 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, 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 a tea break room, 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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