Function

To prevent backflow or the return of water into the mains supply line or original source of supply
Non Return Valve

Operation

The non-return function is controlled by a spring loaded check valve

Application

Installations of pressurised water heaters and thermostatic mixing valves

Installation

The water flow direction is indicated by the arrow engraved on the valve body. It must be fitted downstream from the isolating valve. It is suitable for vertical or horizontal installation (NR100 must be horizontal only.

Specifications and Dimensions
Model
DN Size
Inlet / Outlet BSP
Length
NR50
15
15 91/2") F.I.
67mm

Dimensions (mm)

NR50 Dimensions

Available Models
Model
Description
Product Code
NR50
15 (1/2") Non return check valve
NR50