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Product 3D Image Get couponsThe Piston Flow Switch contains a precision spring supported magnetic piston that pushes the piston backward, which triggers an external microswitch or reed switch.
All-metal internal construction
-Optional pointer type flow switch
-High reliability and repeatability of the switch.
-Complete isolation of mechanical and electronic parts
-High voltage resistance
-Normally open output
-Large contact capacity
-Viscosity compensation function
Test medium: liquid
Repeatability: ≤±3% range
Pressure resistance: 20obar (stainless steel type) 100bar (brass type)
Output mode: normally open + normally closed
Switch capacity: 24VAC/110VDC,1.5A
Ambient temperature: -20...70℃.
Material: Electronic shell part: engineering plastic
Switch housing: stainless steel/brass nickel plated
The pointer displays the material PC
Spring: stainless steel
Protection grade: IP65
Electrical connection: Hersman connector
hydraulic pressure
lubrication
circulatory system
The location of installation affects the switch value
SN21B | - | 008 | G | D | 1 | A | B | specification | |||
SN21B | - | SN21B series pointer piston type flow switch | |||||||||
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 | ||||||||||
1 | Brass nickel plated housing | ||||||||||
2 | stainless steel housing | ||||||||||
A | Setting range: 0.4--4L/min | ||||||||||
B | Setting range: 1--12L/min | ||||||||||
C | Setting range: 5--40L/min | ||||||||||
D | Setting range: 6--60L/min | ||||||||||
B | Electrical connection Hersman connector | ||||||||||
* 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 * 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. |