
Find the Right Product
Answer a few questions about your application and we’ll recommend the right Kelco product.
What do you need to do?

Paddle Flow Switches
For pipe sizes 1" and above. Stainless steel or PVC fittings. Reed switch or microswitch outputs.
View Range →
Float Switches
Submersible float switches for tanks, wells, and sumps. Single and multi-level configurations.
View Range →
Level Switches
Side-entry and top-entry level switches for process tanks and vessels in chemical and water industries.
View Range →
Trailing Wire Flow Switch
Flexible trailing wire switches for high-flow and debris-laden applications in larger pipework.
View Range →Product Selection Guide
Selecting the right Kelco switch depends on your application. Consider: flow rate, flow material, pipe material, pipe size, liquid temperature, maximum pressure, whether there are any solids in the pipe, and mounting orientation. All Kelco switches are suitable for clean water — for other fluids, check the chemical compatibility of the wetted materials.
Flow Switches
Flow rate less than 30 L/min
Small inline switches for low-flow applications
Flow rate less than 100 L/min
Medium-flow inline switches
Metal pipework
Switches with stainless steel process connection
Solids in the pipe or high flow rate
Trailing wire switches that flex with debris
Pipework 1" (25mm) or larger
Paddle and trailing wire switches for larger pipes
Flow Switches & Pump Control
Time delay flow switch
Start-up delay and run-on timer
Time delay with advanced functions
Programmable flow switch with multiple timers
Flow and pressure pump controller
Dual-sensor pump protection
Pressure switch
Digital pressure monitoring and switching
Intelligent pump protection
Self-learning pressure monitoring for dairy & irrigation
About Kelco Engineering
Kelco Engineering Pty Ltd has been designing and manufacturing fluid control products in Australia since 1979. Our products are used across water treatment, mining, chemical processing, HVAC, fire protection, dairy, irrigation, and marine industries in over 40 countries worldwide.
Learn More About Us