NRG ZONE 4, 5 & 6 – 32/32/28


The New NRG ZONE 32/32/28 patented manifold is used at the centre of any central heating system and allows for rapid system construction, total flexibility, complete reliability and ultimate cost-effectiveness in both system running costs and installation in any new-build or retrofit central heating project.

SKU: N/A Category:


The NRG ZONE 32/32/28 provides all the same benefits as the NRG ZONE. The only difference is that the 3 sockets on each side are 1¼” (32mm) female iron fittings instead of 1″ (28mm).

By increasing these sockets from 1″ to 1¼” the flow through these sockets can be increased by 56.25% per socket. This means that the 32/32/28 manifolds are able to handle systems with substantially higher heating outputs.

Additional information


NRG ZONE 6 32/32/28, NRG ZONE 4 32/32/28, NRG ZONE 5 32/32/28


  NRG Zone 4 32/32/28 NRG Zone 5 32/32/28
Length [mm] 375 525
Width [mm] 150 150
Height [mm] 320 320
Material Mild Steel Mild Steel
Number of direct zones 2 3
Connections 3×1″ female iron fittings
6x 1¼” female iron fittings
4x 1″ male iron fittings
3x 1″ female iron fittings
6x 1¼” female iron fittings
6x 1″ male iron fittings
Threads BSP BSP
Operating temperature 5°C to 95°C 5°C to 95°C
Maximum Pressure Tested to 5 Bar Tested to 5 Bar

Technical Documents

NRG Zone Training and Installation Manual