Specification
Product Overview
The Piston Flow Switch NK80C is a mechanical flow monitoring device designed for reliable flow detection in hydraulic and lubrication systems. It incorporates a precision spring-loaded magnetic piston that moves in response to fluid flow, actuating an external micro switch or reed switch to generate a switching signal.
Optional configurations include a pointer-type flow indicator for displaying instantaneous flow and a digital flow display for real-time flow indication. Depending on application requirements, the device can provide switch output or analog output.
The NK80C features an all-metal internal structure, providing stable operation, high repeatability, and complete isolation between the mechanical sensing components and electrical output components.
Why Choose the Piston Flow Switch NK80C?
The NK80C Series is designed for industrial applications requiring dependable mechanical flow monitoring.
Key Advantages
- Precision magnetic piston sensing technology
- Robust all-metal internal construction
- No complex electronic sensing components
- High switching reliability and repeatability
- Complete isolation between mechanical and electrical components
- Optional pointer flow indicator
- Optional digital flow display
- Supports switch or analog output options
- High pressure resistance for demanding industrial systems
- Temperature and pressure compensation design
Working Principle
The NK80C operates using a spring-loaded magnetic piston inside the flow chamber.
As fluid flows through the device, hydraulic force pushes the magnetic piston against the precision spring. When the flow reaches the preset switching point, the piston actuates an external micro switch or reed switch, generating the corresponding output signal.
When the flow decreases below the switching threshold, the spring returns the piston to its original position, resetting the switch.
Optional pointer and digital display versions provide real-time indication of the instantaneous flow rate.
Product Features
- Precision spring-loaded magnetic piston
- All-metal internal construction
- High switching reliability
- Excellent repeatability
- Complete isolation between mechanical and electrical components
- Optional pointer-type flow indicator
- Optional digital flow display
- Switch or analog output available
- High pressure resistance
- Temperature and pressure compensation
- Suitable for continuous industrial operation
Product Applications
The NK80C Series is suitable for flow monitoring in:
- Hydraulic systems
- Lubrication circulation systems
- Industrial machinery
- Cooling circuits
- Equipment protection systems
- Water circulation systems
- Oil circulation systems
Applicable Media
- Water
- Oil
Typical Application Example
Hydraulic Lubrication System Flow Monitoring
Hydraulic lubrication systems require continuous flow monitoring to ensure sufficient lubrication of pumps, bearings, and moving mechanical components.
The Piston Flow Switch NK80C can be installed directly in the lubrication pipeline to detect flow conditions. When the flow reaches the preset value, the reed switch outputs a control signal for system monitoring or equipment protection. Optional flow indication allows operators to observe instantaneous flow conditions during routine inspections.
Technical Specifications
| Parameter | Specification |
|---|---|
| Setting Range | Refer to parameter table |
| Repeatability | ±3% of Full Scale |
| Hysteresis | Minimum 0.5 L/min (depending on switching point) |
| Switch Setting Calibration | Based on water at 20°C with horizontal installation. Medium, installation position, and temperature may slightly affect switching value. |
| Electrical Connection | Hirschmann Connector |
| Output | Reed Switch |
| Contact Rating | 24VDC / 250VAC, 1.5A |
| Pressure Rating | 100 bar (Brass Version) 200 bar (Stainless Steel Version) |
| Average Pressure Loss | 0.3 bar (at 25 L/min) |
| Medium Temperature | Maximum 90°C |
| Protection Rating | IP65 |
Size Chart (mm)
Parameter table
Parameter Table
Frequently Asked Questions (FAQ)
What media is the NK80C suitable for?
The NK80C is designed for water and oil flow monitoring applications.
What switching technology does the NK80C use?
The device uses a precision spring-loaded magnetic piston to actuate an external reed switch or micro switch.
Can the flow be displayed locally?
Yes. Optional versions are available with either a pointer-type flow indicator or a digital flow display for instantaneous flow indication.
Is the NK80C suitable for high-pressure systems?
Yes. The pressure rating is 100 bar for the brass version and 200 bar for the stainless steel version.
Does installation affect the switching value?
Yes. The switch setting is calibrated using water at 20°C with horizontal installation. Changes in installation position, medium, or temperature may slightly affect the switching value.
Table of Contents
Talk With Us
- [email protected]
- +86 180 5512 0225
- +86(0551)-65501008
- Address: 206, Block B, No. 2 Tianda Road, High-tech Zone, Hefei City, Anhui Province, China
- We will respond to you within five minutes.
