The valve uses a Smooth-Flo design which optimises water flow out of the valve, reducing turbulence, minimising float bounce, cutting water spray, and saving your pump. Patent protected Opti-Flo technology prevents blockages & improves performance in dirty water.  The Soft-Close design prevents water-hammer and ensures reliable shut-off.

This valve provides flows up to 847 L/min and prevents pump short cycling, saving your pump and energy.

Float Valve Features

Easy to adjust ball float angle using a Phillips screw.

Easy to disassemble by removing the R-pins.

String and tube components included for converting to an underwater trough valve. The R-pin pulls out to allow the arm to be rotated to face upwards.

The twist lock body holds the assembly in place..

What makes OptiPHIL superior

Watch to find out what makes our new valve superior when it comes to full-flow trough valves. Learn about Philmac’s innovation and patented technology in action.

What's inside the box.

1. Trough valve main body and arm.
2. Hi-Vis ball float for easy visibility.
3. Adaptor for 3/4″ connection.
4. Adaptor for 1″ connection.
5. Extender tube for below water use.
6. String for below water use.


2 minutes 11 seconds

OptiPHIL - How to install OptiPHIL above water

3 minutes 54 seconds

OptiPHIL - How to install OptiPHIL below water

1 minutes 52 seconds

OptiPHIL - New Float Valve from Philmac



OptiPHIL New Philmac Float valve

pdf 0.74 MB

Technical Manual

High Performance Valve for large and medium troughs

pdf 4.61 MB

Installation Guide

OptiPHIL user guide

pdf 2.17 MB

Buy or enquire about our products

You can find our range of products at leading rural suppliers throughout New Zealand, or if you want to know more about a product, our expert team is always happy to help.