Welcome to Controls Traders, located in Adelaide, South Australia. We are a supplier of quality building automation controls and peripheral products for the HVAC industry. We stock a full range of controllers, sensors, valves and actuators, damper actuators and accessories to suit any application. Our aim is to provide our customers with the highest level of service, from sales to delivery and after sales support. With our extensive in-house knowledge and expertise in the industry, we can advise you on selection and application of our wide range of controls products.
Backed by 40 years industry experience. When you just need to be sure.
No, we’re serious. Anywhere. Anytime.
We stock all major global brands. And if we don’t have it, we’ll find it.
We warehouse the stock so you don’t have to wait.
$150.00 ex GST
For Australian HVAC installers and facility managers, Belimo is synonymous with reliability. Whether you are fitting out a new commercial tower in Sydney or retrofitting a hospital plant room in Adelaide, you know that a Belimo orange actuator simply works.
However, the Belimo range is vast. Beyond the standard damper actuators, there are high-tech valves and safety solutions that can drastically reduce commissioning time and energy usage.
At Controls Traders, we warehouse a massive range of Belimo stock in South Australia, ready for fast delivery nationwide. Drawing on our 40 years of industry experience, here are the Top 5 Belimo products that every Australian installer should know about.
Safety is non-negotiable in Australian building codes. The Belimo LF Series is a staple for critical applications where a fail-safe position is required during a power outage.
When you need precise modulation for standard air handling, the NR Series is the industry workhorse. It is robust, easy to mount, and integrates seamlessly with almost any BMS.
This is the future of hydronic control. The Energy Valve is not just a valve; it is a 5-in-1 device combining a valve, actuator, flow sensor, and two temperature sensors.
In variable flow systems, pressure fluctuations can cause "ghost flows" and hunting. The Belimo PICV combines a differential pressure regulator with a control valve to maintain constant flow regardless of pressure changes.
Standard ball valves often have poor flow characteristics (a small opening lets through too much water). Belimo CCVs feature a specialized disc inside the ball port that ensures an "equal percentage" flow curve.
Whether you need the basic reliability of an NR24A-SR damper actuator or the advanced data analytics of an Energy Valve, choosing Belimo ensures you aren't returning to the site to replace failed gear in six months.
At Controls Traders, we are an Australian-owned business with deep stock levels of Belimo Actuators and valves in our Adelaide warehouse. We understand the local market and can help you cross-reference old part numbers to find the modern Belimo equivalent.
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For HVAC installers and commissioning technicians, the differential pressure (DP) sensor is a critical component. Whether you are proving flow on a chiller or maintaining static pressure in a duct, you cannot commission a building without accurate pressure readings.
Finding these sensors in stock locally, however, can be a challenge. Waiting three weeks for a sensor to arrive from overseas often isn't an option when you have a handover deadline looming.
At Controls Traders, we warehouse a comprehensive range of [Differential Pressure Sensors] in Adelaide, ready for immediate dispatch across Australia. Here is what you need to know before you buy.
A differential pressure sensor measures the difference in pressure between two points in a system—the high side and the low side. It converts this mechanical difference into an electrical signal (typically 0-10V or 4-20mA) that your Building Management System (BMS) can read and act upon.
In modern HVAC, these sensors are the "eyes" of the system, allowing the BMS to modulate fans and pumps to match actual building demand rather than guessing.
When sourcing a sensor, you generally need to choose between two main categories:
We stock brands like Dwyer, BAPI, ACI, and Siemens that offer field-selectable ranges. This means you can buy one sensor and configure it for 0-250Pa or 0-500Pa on-site, saving you from carrying multiple part numbers in your van.
You will typically install these sensors for three main applications:
Before placing an order, check these three specs:
Supply chain delays are the enemy of profitable projects. Many suppliers list items online that are actually drop-shipped from Europe or the US, leading to unexpected delays.
At Controls Traders, we warehouse our stock locally in South Australia. This "convenience factor" means you don't have to wait for international freight. If a sensor fails on a critical site, you need a replacement in days, not weeks.
You can purchase high-quality sensors directly from Controls Traders. We are an Australian-owned business based in Stepney, South Australia.
Don't let a missing sensor hold up practical completion. Whether you need a simple switch for a filter or a high-precision transducer for a lab, buying from a local supplier ensures you get the right part, right now.
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For HVAC consultants and commissioning engineers, hydraulic instability is the enemy of efficiency. In a traditional variable volume system, pressure fluctuations caused by opening and closing valves elsewhere in the loop can cause "ghost flows" and overflow conditions.
The solution to this hydraulic cross-talk is the Pressure-Independent Control Valve (PICV).
At Controls Traders, we have over 40 years of industry experience supplying high-performance valves to the Australian market. We see PICVs as the standard for modern energy-efficient design, replacing the traditional "control valve plus balancing valve" setup.
A PICV is a single valve body that combines three functions:
Unlike a standard control valve, where flow is a function of both opening area and differential pressure ($Q = Kv \times \sqrt{\Delta P}$), a PICV maintains a constant flow rate regardless of pressure changes in the branch line.
In a large chilled water system, when a valve closes on the ground floor, the pump pressure (head) increases for the rest of the building. In a standard system, this pressure spike forces more water through open valves on the top floor, leading to overflow and Low $\Delta T$ Syndrome.
A PICV prevents this using an internal mechanical regulator (often a diaphragm and spring).
This ensures that the control valve cone (the part the actuator moves) always sees a constant differential pressure, making the flow dependent only on the actuator position, not the pump speed.
When specifying or installing a PICV, you are dealing with three distinct elements:
Why are consultants specifying PICVs for hospitals and Green Star buildings?
Advanced Tech: For the ultimate in visibility, the Belimo Energy Valve combines a PICV with flow sensors and temperature sensors to measure energy consumption ($kWh$) and self-optimize based on real-time coil performance.
PICVs are the "go-to" solution for variable flow systems where efficiency is critical.
Scenario: A 10-story office building in Adelaide. The Problem: When the morning warmup sequence ends and VAV boxes throttle down, the pressure in the riser spikes. The PICV Solution: Instead of installing a 2-way ball valve and a manual balancing valve at every FCU, the installer fits a single Pressure Independent Control Valve.
The Pressure-Independent Control Valve is not just a valve; it is a hydraulic stabiliser. It decouples the control loop from the hydraulic loop, allowing your BMS to control temperature without fighting system pressure.
At Controls Traders, we stock a wide range of PICVs and matching actuators from brands like Belimo and Siemens. Whether you are retrofitting a plant room or designing a new build, getting the valve selection right is the first step to a high-efficiency building.
Read the full guide on our website for flow diagrams and actuator pairing charts.
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In Building Management Systems (BMS), the controller is the brain, but the sensors are the nervous system. No matter how advanced your iSMA or Siemens Controller is, it cannot maintain occupant comfort or energy efficiency if it is receiving inaccurate data.
For mechanical engineers and installers, selecting the "right" sensor isn't just about picking a catalogue number. It requires matching the physical form factor to the medium (air or water) and the electrical characteristics to the controller’s input card.
At Controls Traders, we stock the full spectrum of Sensors & Transducers from trusted brands like BAPI, ACI, and Siemens. Here is a technical breakdown of how to choose the right temperature sensor for your application.
A temperature sensor is the primary variable for 90% of HVAC control loops.
We categorise sensors based on where they live and what they measure.
Once you have the physical type, you must select the sensing element. This creates the most confusion for junior technicians.
Based on our experience supplying the Australian market, here are common pairings:
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Even the best sensor fails if placed poorly.
Selecting the right temperature sensor ensures your BMS operates efficiently and your tenants stay comfortable. Whether you need a simple strap-on sensor for a retrofit or a high-precision immersion sensor for a hospital chiller, the details matter.
At Controls Traders, we warehouse a massive range of sensors from BAPI, ACI, and Siemens, ready for fast delivery across Australia.
Need to check a resistance curve or find a compatible thermowell? Read the full guide on our website for selection charts and technical specs.
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