The Stuart Turner ST 15/60 B-130 (47074) is a bronze-bodied circulator designed to constantly circulate hot water within an open system, making it suited to domestic hot water recirculation as well as heating. It has an EEI of 0.18 and delivers up to 5.8 m head and 3.3 m³/h.
The robust bronze pump housing resists corrosion in oxygenated water, and proportional-pressure control adapts performance to demand. Retailers list it as a replacement for the Grundfos UPS 15/50 N and ALPHA 15/50 N, the Wilo SB30 and similar pumps.
EEI 0.18
Energy efficiency
130 mm
Port-to-port length
Built for hot water recirculation
Bronze construction makes the ST 15/60 B the right Stuart Turner circulator for open systems and hot water loops, where a cast iron pump would corrode.
Check before you order
Match the 130 mm port-to-port length and 1½ in. connection to your existing pump. This model carries a 3-year warranty, while the cast iron models carry 5 years.
Safety
Isolate the electrical supply before any work. The motor casing and pump body get very hot in normal use. Installation must be carried out by a qualified person, with the pump earthed via its supply cord, and a 30 mA RCD is recommended in the supply circuit. Never run the pump dry.
Key features
High-efficiency ECM motor
Permanent magnet ECM technology with an EEI of 0.18 keeps running costs low and complies with EuP/ErP requirements.
Proportional pressure control
Choose from three preset proportional-pressure curves or three constant-power curves. The system-pressure control adapts pump performance to demand.
One-button settings
A single illuminated button on the terminal box cover selects the setting: blue for lowest, green for medium and yellow for highest.
Automatic venting cycle
An automatic venting cycle helps clear trapped air at start-up. Any remaining air can be cleared by stopping and restarting the pump.
Reliable construction
Canned-rotor design with ceramic bearings, a Noryl impeller and continuous (S1) duty rating for long service.
Bronze pump housing
The bronze body is built for open systems and hot water circulation, where corrosion resistance matters.
Specification
General
Model
ST 15/60 B (130) Circulator
Manufacturer part number
47074
Application
Open-system hot water circulation and heating
Hydraulic
Port-to-port length
130 mm
Maximum head (closed valve)
5.8 m
Water temperature
-10 to +110 °C
Maximum working pressure
10 bar
Electrical
Supply
230 V, single phase, 50 Hz
Enclosure protection
IP44
Construction and operation
Pump type
Centrifugal, canned rotor
Duty rating
Continuous (S1)
Maximum ambient air temperature
40 °C
Frequently asked questions
Is it suitable for domestic hot water recirculation?
Yes. The ST 15/60 B is designed to constantly circulate hot water within an open system and has a bronze pump body.
Which way up can it be fitted?
The motor shaft must be horizontal. The flow through the inlet and outlet can be vertical or horizontal, and the terminal box can be repositioned if access is limited.
How do I change the pump setting?
Press the button on the terminal box cover to step through the three curves: blue is lowest, green is medium and yellow is highest. Hold it for over 5 seconds to switch between proportional-pressure and constant-power modes.
What fluid can it pump?
Clean water, or clean water mixed with antifreeze suitable for central heating systems. The liquid must not contain aggressive or explosive additives, mineral oils or solid or long-fibre content.
What is the difference between the ST 15/60 and ST 15/60 B?
The B model has a bronze body for open systems and hot water recirculation. The ST 15/60 has a cast iron body for closed heating loops. Performance is otherwise the same.
