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This is a robust, electronically controlled variable‑speed circulator engineered for commercial hot‑water heating, air‑conditioning and ventilation systems. As part of the Stuart Pulse range, this cast‑iron single‑head circulator constantly monitors and regulates pressure and flow, then automatically adjusts its operating mode to maintain hydraulic efficiency and energy‑compliant performance in demanding plant environments.
Adaptive variable speed control, including automatic, proportional pressure, constant pressure and constant speed operating modes.
Automatic night mode to reduce energy consumption during periods of low demand.
ECM permanent magnet technology enhances energy efficiency and supports ErP compliance.
Automatic venting cycle to minimise trapped air and improve system reliability.
Robust cast iron housing with carbon bearings designed for commercial plant‑room conditions.
Continuous duty (S1) rating for sustained operation under varying loads.
LED display control panel for straightforward configuration and status feedback.
Built‑in protections against over‑current, over‑temperature and over‑voltage events.
ErP compliant to align with modern energy‑efficiency regulations.
Two‑year manufacturer’s warranty for quality assurance.
The Pulse 32/120‑180 is engineered to deliver dependable circulation performance suited to professional hydronic installations:
Maximum head (closed valve): up to approximately 12 metres.
Fitting length: 180 mm standard inline dimension, facilitating integration into existing systems.
Pump connections: G 2 union connections for secure plumbing installation.
Maximum working pressure: up to 10 bar, suitable for commercial hot‑water circuits.
These performance attributes support efficient fluid circulation in medium‑ to large‑scale hydronic heating and HVAC networks where dynamic control and energy efficiency are essential.
Power supply: 230 V AC, single phase, 50 Hz (typical configuration in commercial systems).
Duty rating: Continuous (S1) for reliable, all‑day operation.
Pump body material: Cast iron with carbon bearings for durability and service life.
Fitted length: 180 mm to align with common commercial pump dimensions.
Connection size: G 2 union connections for secure plumbing integration.
Enclosure protection: Suitable for typical indoor plant‑room environments.
Operating temperature range: Designed to handle hot‑water system temperatures (commonly up to 110 °C).
Stuart Turner Pulse 32/120‑180 Commercial Circulator Pump
Installation and user manual
Union fitting accessories
The Stuart Turner Pulse 32/120‑180 Commercial Circulator Pump provides adaptable, energy‑efficient circulation performance for commercial hydronic heating and HVAC applications. Its advanced variable speed control, automatic features and robust cast‑iron construction make it a dependable choice for building services engineers and installers specifying high‑performance circulators for demanding environments.
