Description

Glowworm 0020020744 Expansion Vessel | Compatible with Flexicom, Micron, Ultracom, CXI & SXI Boilers

The Glowworm 0020020744 Expansion Vessel is a spare part designed to absorb pressure fluctuations within your heating system. Replacing a faulty expansion vessel helps prevent leaks, frequent pressure loss, and boiler lockouts.

This expansion vessel is compatible with multiple Glowworm boiler series, including Flexicom, Micron, Ultracom, CXI and SXI.

Compatible Glowworm Boilers & GC Numbers

Flexicom Series:

• Flexicom 18 HX – GC No. 41-315-42

• Flexicom 18 SX – GC No. 41-315-72

• Flexicom 24 CX – GC No. 47-047-33

• Flexicom 30 CX – GC No. 47-047-34

• Flexicom 30 SX – GC No. 41-047-76

• Flexicom 35 CX – GC No. 47-047-35

Glowworm CXI Series:

• Glowworm 24 CXI – GC No. 47-047-23

• Glowworm 30 CXI – GC No. 47-047-24

• Glowworm 38 CXI – GC No. 47-047-27

Glowworm SXI Series:

• Glowworm 18 SXI – GC No. 41-047-72

• Glowworm 30 SXI – GC No. 41-047-62

Micron Series:

• Micron 30 FF – GC No. 41-047-16

• Micron 30FF Early – GC No. 41-047-46

• Micron 40 FF – GC No. 41-047-17

• Micron 40FF Early – GC No. 41-047-47

• Micron 50 FF – GC No. 41-047-18

• Micron 50FF Early – GC No. 41-047-48

• Micron 60 FF – GC No. 41-047-19

• Micron 60FF Early – GC No. 41-047-49

Ultracom Series:

• Ultracom 24 CX – GC No. 47-019-06

• Ultracom 30 CX – GC No. 47-019-07

• Ultracom 24 CXI – GC No. 47-019-01

• Ultracom 30 CXI – GC No. 47-019-02

• Ultracom 38 CXI – GC No. 47-019-03

• Ultracom 18 SXI – GC No. 41-019-07

• Ultracom 30 SXI – GC No. 41-019-08

FAQs

Q: What does the Glowworm 0020020744 Expansion Vessel do?
It absorbs pressure changes inside the heating system, preventing frequent pressure drops and boiler shutdowns.

Q: How do I know if my expansion vessel is faulty?
Signs include constant boiler pressure loss, dripping from the pressure relief valve, or the need to frequently top up your system.

Delivery and Return

Place orders before 1 PM for same-day dispatch via reliable couriers. Choose from standard or next-day delivery options. Returns are accepted within 30 days if the part is unused and in original packaging. Always use a Gas Safe registered engineer for correct installation and compliance.