The Potterton 402906 Gas Valve (SIT Nova) is a genuine replacement gas control valve designed to regulate and deliver the correct gas flow to the burner in compatible Potterton boilers. This valve ensures safe ignition, stable combustion, and efficient boiler performance by precisely controlling gas pressure and flow.

A faulty gas valve can cause ignition failure, fluctuating flame, poor heating performance, or boiler lockouts. Replacing it with this genuine SIT Nova valve restores accurate gas regulation and reliable system operation.

Key Features

• Genuine Potterton SIT Nova gas valve

• Provides precise gas flow control for safe ignition and combustion

• Helps resolve ignition faults, flame instability, and lockout issues

• Robust, high-quality construction

• Direct-fit replacement for reliable installation

Compatible With

Suitable for selected Potterton boilers requiring gas valve 402906 (SIT Nova).

Please verify the part number with your boiler manual or existing valve to ensure correct compatibility.