STjh DN50 12 m hot-water circulation pump with a medium flanged casing and integrated controls on white.

STJH-HOT-WATER-CIRCULATION-PUMP-DN50-12M

Hot-Water Circulation Pump DN50 12 m

A medium DN50 flanged circulator with electronic speed control and a 12 m head class for controlled-facility heating circuits.

DN50 flanged connection
12 m head class
230-240 V electronic drive

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Introduction de produit

The DN50 model enlarges the hydraulic casing and motor for medium AHU heating and reheat-water circulation. Its 12 m head class, 230-240 V supply and broad fluid-temperature range suit longer branches and larger coils than the compact DN32 pump.

Key Features

Medium heating-loop head

The larger hydraulic overcomes additional pipe, valve and coil resistance in a controlled facility.

Integrated electronic drive

Variable speed maintains the selected pressure or flow response across changing valve positions.

Flanged service connection

DN50 flanges provide a robust removable interface for medium distribution pipework.

Paramètres techniques

Connection Size	DN50
Maximum Head	12 m class
Mains Supply	230-240 V, 50/60 Hz
Fluid Temperature	-10 to 110 C
Maximum Pressure	Up to 16 bar depending on version
Pump Arrangement	Flanged inline circulator
Speed Control	Integrated electronic
Control Functions	Differential-pressure and constant-speed modes
Installation	Supported horizontal or vertical pipework as permitted
Customisation	Hydraulic duty, sensor interface and connection accessories can be configured for the intended application and operating environment.

Applications

Medium AHU heating coils, clean manufacturing reheat loops, laboratory hot-water systems and controlled-space utility heating.

Solutions for Your Application

The DN32 circulator cannot overcome a medium branch's coil and valve pressure loss.Use the DN50 12 m selection after confirming the required operating point.

Flow falls as the network changes between occupied and standby operation.Apply electronic pressure control and place sensors according to the branch layout.

Options disponibles

Pressure sensor, remote setpoint, insulation, check and isolation valves, communication module and alarm output can be selected.

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