We are a specialist manufacturer of corrosion resistant flow switches, level switches, and float switches.

Find the Right Product

Answer a few questions about your application and we’ll recommend the right Kelco product.

The majority of our switches have no metal parts in contact with process fluids, making them ideal for use in corrosive applications.

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

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 Products Ltd

Kelco Products Ltd was established in 2004 to distribute the Kelco range of corrosion resistant level and flow switches in New Zealand and the South Pacific.