Glowworm Flexicom 30 SX Gas Valve – Refurbished | Part No. 0020020735

Ignition failure, unstable flame, or repeated lockout in a Glowworm Flexicom or Ultimate boiler points directly to a deteriorating gas valve. This component controls gas delivery to the burner — when it fails, the boiler can no longer maintain safe, consistent combustion. The Glowworm Flexicom 30 SX Gas Valve (Part No. 0020020735) is the pre-owned direct replacement, restoring reliable gas regulation across the full Flexicom 12–30 range, BG 330+, and Ultimate 24H series.

This pre-owned unit is quality-checked and tested by our engineering team to confirm correct gas flow regulation and safe burner operation before dispatch. Minor cosmetic marks may be present, but all functional performance is verified. Supplied with a 6-month warranty.

Compatible Boiler Models

Tested. Reliable. Warranted.

Every pre-owned Glowworm gas valve we supply is quality-checked and tested by our engineering team to confirm correct gas regulation and safe combustion performance before dispatch. This 0020020735 unit restores reliable burner control across the full Flexicom range and is a cost-effective alternative to a new OEM part. Supplied with a 6-month warranty.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day. Standard and next-day delivery available at checkout. Returns accepted within 30 days in original unused condition.

Note: Please confirm that part number 0020020735 matches your existing gas valve and check your boiler's GC number before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.