Accurate Flow Control for Heat Pumps
Air source heat pumps need the correct water flow to operate efficiently.
Therefore, installers need a reliable way to measure and balance circulation through the system.
This 1″ male flow setter provides an adjustable range from 5 to 42 litres per minute. As a result, it suits many domestic and light commercial heat pump applications.
Built-In Flow Indicator
The integrated indicator displays the circulating flow rate.
Therefore, engineers can see the actual flow while adjusting the valve.
This makes commissioning quicker and more accurate. In addition, it provides a useful visual check during future maintenance.
Radiant Control states that the reading is taken from the lower part of the moving indicator.
Adjustable 5-42 L/min Flow Range
This model covers a 5-42 L/min flow range.
Therefore, it offers plenty of adjustment for compatible heat pump and heating circuits.
The system designer should determine the required flow rate. Then the installer can adjust the flow setter to match that target.
Always follow the heat pump manufacturer’s commissioning requirements.
1″ Male BSP Connection
This version uses a 1″ male BSP connection with a DN20 bore.
Therefore, it suits compatible threaded heating and heat pump pipework.
Always check the adjoining fittings before ordering. Also, confirm the system flow requirement rather than choosing the valve by thread size alone.
Ideal for Air Source Heat Pumps
Heat pumps often operate with higher water flow rates than traditional boiler systems.
Therefore, correct hydraulic balancing becomes particularly important.
An incorrectly balanced system may struggle to transfer heat effectively. In contrast, a correctly set circuit helps maintain the required water flow.
A flow setter provides a simple way to check and adjust this during commissioning.
Suitable for Flow and Return Circuits
The valve can form part of a suitable primary heating circuit.
For example, installers may position it where the system flow can be checked easily.
Radiant Control states that the flow regulator can operate horizontally or vertically. It can also work with either direction of flow.
Flexible Installation Position
The flow setter does not need one fixed mounting orientation.
Therefore, installers gain more flexibility when planning compact plant rooms or heat pump pipework.
For the most stable reading, Radiant Control recommends a straight pipe length of at least five times the pipe diameter.
Useful During Commissioning
Correct commissioning plays an important role in heat pump performance.
The installer can use the flow setter to:
- Check circulating flow
- Adjust system flow
- Balance the heating circuit
- Confirm commissioning settings
- Check flow during servicing
- Diagnose circulation problems
- Verify changes after component replacement
Therefore, the valve remains useful throughout the life of the system.
Heat Pump Replacement and Servicing
Flow setters may eventually need replacement.
For example, the indicator may become damaged or difficult to read. Alternatively, the adjustment mechanism may become stiff or faulty.
A replacement flow setter can restore easy flow measurement where the system specification matches.
Always compare the existing connection and flow range before ordering.
Suitable Applications
The 1″ Male Flow Setter can suit compatible:
- Air source heat pump systems
- Monobloc heat pumps
- Ground source heat pumps
- Low-temperature heating systems
- Water underfloor heating
- Central heating systems
- Plant rooms
- Multi-zone heating systems
- Heat pump replacement work
- Heating-system commissioning
Technical Specifications
| Specification | Details |
|---|---|
| Product | Flow Setter |
| Connection | 1″ Male BSP |
| Nominal Bore | DN20 |
| Flow Range | 5-42 L/min |
| Pressure Rating | PN10 |
| Maximum Continuous Temperature | 120°C |
| Kvs | 2 |
| Installation Position | Horizontal or vertical |
| Flow Direction | Either direction |
| Application | Compatible heat pump and heating systems |
The published 1″ heat pump flow setter specification includes PN10, a maximum continuous temperature of 120°C and Kvs 2.
Why Is Correct Heat Pump Flow Important?
A heat pump needs enough circulating water to transfer energy into the heating system.
Therefore, low flow can affect performance.
Excessive flow can also create unnecessary pumping demand.
A flow setter helps the installer find the required operating point. As a result, the system can run closer to its intended design conditions.
Flow Setter vs Flow Balancing Valve
Both products help control water flow.
However, some balancing valves include additional isolation, fill or flush functions.
A standard flow setter focuses on measuring and regulating flow.
Therefore, always choose the product that matches the system design.
Flow Setter vs Flow Meter
A basic flow meter mainly displays flow.
By contrast, a flow setter also allows the installer to regulate it.
Therefore, the installer can measure and adjust the circuit from the same component.
Choosing the Correct Flow Setter
First, check the required flow range.
Next, confirm the pipe connection.
This version provides 1″ male BSP connections and covers 5-42 L/min.
Finally, check the heat pump manufacturer’s design flow.
Do not choose a flow setter from pipe size alone.
Why Buy From Kudos Trading?
Kudos Trading supplies heating, plumbing and renewable heating components throughout the UK.
We are expanding our range of air source heat pump installation, service and replacement parts.
Therefore, installers can source flow control, frost protection, filtration and circulation products from one supplier.
In addition, we have supplied underfloor heating products to the UK since 2001.
Frequently Asked Questions
What Does a Flow Setter Do?
A flow setter measures and regulates water flow through a heating circuit.
Therefore, installers can balance the system to the required flow rate.
What Flow Range Does This Model Cover?
This version covers 5 to 42 litres per minute.
What Connection Does It Have?
This version uses a 1″ male BSP connection with a DN20 bore.
Is It Suitable for an Air Source Heat Pump?
Yes, where the connection and required flow range match the system design.
Always follow the heat pump manufacturer’s commissioning requirements.
Can I Install It Horizontally?
Yes.
The flow setter can operate horizontally or vertically.
Does Flow Direction Matter?
The published installation guidance allows flow in either direction.
What Is the Maximum Operating Temperature?
The published maximum continuous operating temperature is 120°C.
What Is the Pressure Rating?
The published pressure rating is PN10.
Can I Use It with Underfloor Heating?
Yes, where the required flow falls within the valve’s operating range.
However, always size the component against the complete hydraulic design.
Can I Use It as a Replacement Flow Setter?
Yes, provided the thread size, flow range and system requirements match.
Always compare the original component before ordering.
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Orders travel using our tracked DPD delivery service.
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