WILO pump accessory set 15: Z-NOVA A,C,T coupling and half-union components

The WILO pump accessory set 15: Z-NOVA A,C,T coupling and half-union components is an accessory kit designed for connecting and servicing WILO Z‑NOVA A, C and T series circulation pumps. The set includes coupling and half-union (half-screw) parts that are intended to restore or maintain hydraulic tightness between the pump housing and the piping system. It is suitable for installation, repair or replacement work on heating, ventilation and hot-water circulation systems where compatible Z‑NOVA pumps are used.

Advantages

This accessory set provides precisely fitted coupling and half-union components made to match the geometry of Z‑NOVA A, C and T pump series, enabling reliable mechanical connection and sealing. Using original-matching parts helps reduce leak risk and simplifies maintenance procedures by avoiding ad hoc modifications. The components are compact and intended for straightforward integration into existing pump connections, supporting efficient field replacement and reduced downtime.

Suitable for

• Installation of Z‑NOVA A, C, T series circulation pumps
• Repair or replacement of damaged coupling or half-union fittings
• Maintenance work on heating, ventilation and domestic hot-water circulation systems
• Field servicing where restoring hydraulic tightness is required

Key specifications

• Compatibility: components shaped for Z‑NOVA A, C and T series pump connections
• Included parts: coupling element and half-union (half-screw) components for pump-to-pipe connection
• Function: mechanical connection and hydraulic sealing between pump and pipework
• Application area: circulation pumps in heating, ventilation and domestic hot-water systems

How to use

Shut down the pump and isolate the relevant section of the piping system before beginning work. Drain the section if necessary and remove the existing coupling or half-union fittings. Fit the supplied coupling and half-union components to the pump shaft and pipe connection following the pump manufacturer’s recommended orientation. Tighten connections to the torque and sequence appropriate for the installation to ensure correct sealing. After installation, refill and repressurize the system, then check for leaks and proper pump operation.

Usage recommendations

Use this accessory set with the compatible Z‑NOVA pump series and inspect sealing surfaces for damage before installation. Replace any worn or corroded mating parts to ensure reliable hydraulic tightness. If uncertain about installation procedures or torque settings, consult the pump technical documentation or a qualified technician.