Circulation Pump Xylem ECOCIRC XL 32-40 (DWZ) — inline circulator for heating systems

Xylem ECOCIRC XL 32-40 (DWZ) is an inline circulation pump designed for domestic and light commercial heating and hot water recirculation. The pump fits into closed heating circuits and boiler loops to maintain reliable hydraulic circulation. With a 32 mm connection size and a nominal head class of 40 mm, the unit is intended for compact inline mounting in retrofit projects and new installations where continuous or intermittent water movement is required.

Advantages

The ECOCIRC XL 32-40 (DWZ) offers compact inline construction that simplifies installation in tight pipe runs. Its design provides steady flow performance for circulation of heating water and domestic hot water recirculation, contributing to consistent temperature control. The pump is suitable for systems that require a robust and dependable circulator with straightforward hydraulic characteristics and easy integration into existing pipework.

Suitable for

• Domestic central heating systems
• Hot water recirculation loops (DHW)
• Boiler circulation and boiler loop systems
• Retrofit replacements where inline mounting is required
• Light commercial heating installations

Key specifications

• Connection size: 32 mm
• Nominal head class: 40 mm
• Inline circulator configuration for straight pipe mounting
• Designed for closed heating circuits and domestic hot water recirculation
• Compact dimensions suitable for retrofit and new installations

How to use

Install the ECOCIRC XL 32-40 (DWZ) in-line with the system piping following the flow direction marked on the pump body. Ensure isolation valves and appropriate unions or flanges are fitted to allow service and replacement without draining the entire system. After mechanical installation, purge air from the circuit and verify correct electrical connections and grounding according to local electrical codes. Start the pump and check for correct flow, absence of leaks and stable operation under expected system loads.

Usage recommendations

For reliable operation, follow the manufacturer's guidance on system water quality and temperature limits, and perform periodic checks for air entrapment and bearing noise. Use the pump in systems within its rated hydraulic range and ensure compatibility with piping materials and fittings for a long service life.