Philmac StockPHIL
Philmac’s unique and compact StockPHIL float valve has been designed specifically for stock troughs. The valve hugs the trough wall and has no long lever arm, virtually eliminating the risk of damage caused by stock.
Two models are available: The Plastic body and plunger are manufactured from engineering grade thermoplastic. This provides a high level of wear, UV and corrosion protection.
The brass body is manufactured from quality dezincification brass. This ensures it is resistant to the loss of zinc which would otherwise cause leakage and premature failure.
The arm is located so it operates over the body thus ensuring a compact size valve and minimising stock damage.
The float has been designed to hug the wall of the trough and minimise stock tampering with them. They also have built-in protective buffer strips to protect should they rub on the wall of the trough.

StockPHIL TROUGH VALVE (includes Float) Plastic
| Product Number | Size |
|---|---|
| AQ400P | 3/4” |
| AQ500P | 1” |
| AQ600P | 11/4” |
| AQ900 | Float & Poly Tube Only |
StockPHIL TROUGH VALVE (includes Float) Brass
| Product Number | Size |
|---|---|
| AQ100B | 3/4” |
| AQ200B | 1” |
| AQ300B | 1-1/4” |
StockPHIL Float Valve Plunger Assembly Spare Part
| Product Number | Size |
|---|---|
| AQ815 | 3/4″ Brass valve only – inc. spool & washer |
| AQ825 | 3/4″ Plastic, 1″ Plastic & Brass valves – inc. spool & washer |
| AQ845 | 1-1/4″ Plastic & Brass valves – inc. spool & washer |
| AQ945 |
StockPHIL Float Valve Cord and Ferrule Spare Part
| Product Number | Size |
|---|---|
| AQ960 | Pack of 5 |
StockPHIL Float Valve Float Tube Spare Part
| Product Number | Size |
|---|---|
| AQ020 | 250mm – (Pack of 10) |
StockPHIL Float Valve Lever Spare Part
| Product Number | Size |
|---|---|
| AQ935 | For 1-1/4″ Poly & Brass Valves |
StockPHIL Float Valve Pivot Pin Spare Part
| Product Number | Size |
|---|---|
| AQ905 | S/P Pin suits StockPHIL 3/4″ & 1″ |
| AQ803 | S/P Pin suits StockPHIL 1-1/4″ |
Overview / Why Choose This Product
Philmac StockPHIL® is designed for automatic water level control in livestock troughs, ensuring a consistent supply for stock watering systems. Built tough for Australian conditions, StockPHIL® combines a robust body with corrosion-resistant internals for long-term reliability. Australian Made quality guarantees confidence for farmers and rural asset owners.
Key Features
Automatic water level control – maintains trough levels without manual intervention
Durable construction – UV-stabilised polypropylene body
Corrosion-resistant internals – brass or stainless steel for longevity
Easy installation – simple threaded connection
Applications & Benefits
Applications
- Livestock watering troughs
- Rural water systems
- Agricultural installations
Benefits
- Consistent water supply – reduces manual monitoring
- Reliable performance – engineered for harsh conditions
- Long service life – withstands UV exposure and rough handling
Technical Specifications
- Size Range: ½” – 1″ BSP inlet
- Connection Type: BSP threaded ends
- Pressure Rating: Up to PN16
- Material: UV-stabilised polypropylene body with brass or stainless steel components
Note: Always confirm size, pressure class, and compliance requirements against the official datasheet and local standards.
Installation Guide
- Attach valve to trough inlet using BSP threaded connection.
- Connect float arm and adjust position for desired water level.
- Pressurise and test the system for correct operation.
- Fine-tune settings as required.
For detailed diagrams and adjustment tips,view the Philmac installation guide online.
FAQs
What is StockPHIL® used for?
StockPHIL® is designed for automatic water level control in livestock troughs.
What sizes are available?
Common inlet sizes include ½”, ¾”, and 1″ BSP.
Do I need special tools for installation?
No. Installation is simple with standard plumbing tools.





