Get a Fast Quote
🛠️ Need the Right HVAC Tool for the Job?
Whether you're quoting a bulk order or chasing hard-to-find tools, we’re here to help.
Get a fast, personalised quote—no pressure, no spam!
Fill out the form below and we’ll get back to you ASAP.
📩 Request a Quote
Description
This Bonaire Diaflow Control Valve is built to manage water flow in your evaporative cooler, ensuring your Bonaire or Celair unit runs right. It's a critical component for maintaining efficient water distribution and bleed systems, especially important during a hot Aussie summer when your cooler works overtime.
Keeping your evaporative cooler's water flow spot on helps prevent scale buildup and ensures consistent cooling, something every tech knows is key for client comfort.
Best For
- Bonaire and Celair evaporative cooler owners
- HVAC technicians maintaining residential evaporative cooling systems
- Refrigeration apprentices learning water control systems
Compatibility
Designed specifically for Bonaire and Celair evaporative cooling units that use a bleed system. This valve is also suitable for any evaporative cooler setup with 19mm water distribution hoses. If you're running a different model, check fittings and specs before ordering.
Features
- Direct replacement for Bonaire PN 6050904SP, ensuring a perfect fit and function.
- Optimised for Bonaire and Celair evaporative coolers with bleed systems, maintaining correct water levels and preventing excessive mineral buildup.
- Universal fit for systems using 19mm water distribution hoses, offering flexibility for various cooler brands.
- Durable construction designed to withstand continuous water flow and typical evaporative cooler operating conditions.
Technical Specifications
| Specification | Detail |
|---|---|
| Hose Compatibility | 19mm (3/4") water distribution hoses |
| Manufacturer Part Number | Bonaire PN 6050904SP |
What's in the Box
- One Bonaire Diaflow Control Valve (CTSPS6050904SP)
Using It on the Job
- Isolate power and water supply to the evaporative cooler before starting any work. This is non-negotiable for safety.
- Drain the cooler's sump completely to prevent spills and give you a clear work area.
- Carefully disconnect the existing control valve from the 19mm water distribution hoses. Be ready for any residual water.
- Install the new Bonaire Diaflow Control Valve, ensuring all hose clamps are secured tightly to prevent leaks.
- Restore water and power, then check for proper operation and any leaks at the connection points.
- Test the bleed system to confirm correct water level management and efficient operation.
Limitations & Safety Notes
- Always isolate power and water supply before attempting installation or maintenance on an evaporative cooler.
- This valve is for evaporative cooler water systems only; it is not designed for pressurised refrigerant circuits or potable water lines.
- Ensure 19mm hose compatibility before installation to prevent leaks or improper function.
- Follow manufacturer's guidelines for Bonaire and Celair units during installation and operation.
Tradie Pro Tip
Before you torque down those hose clamps, make sure the hose is properly seated on the valve barb. A slight twist and push can prevent a slow drip that'll show up later, especially in humid conditions.
Pair With
Pair with new evaporative cooler filter pads and a quality pump for a complete evaporative cooler service, ensuring your unit is ready for the next heatwave.
Common Questions for Bonaire Diaflow Control Valve
Any question?
If we still haven't answered your question, you can contact us below and we will get back to you as soon as possible.

















