Glow-worm Flexicom 18SX & 30SX Pressure Relief Valve (PRV) 2000801904 / 0020014173

Product Overview

The Glow-worm Flexicom Pressure Relief Valve (PRV) is a replacement safety component designed for use within selected Glow-worm Flexicom boiler systems.

The pressure relief valve helps protect the sealed central heating system against excessive water pressure by releasing water when the pressure exceeds the valve's specified operating limit. It plays an important role in maintaining safe system operation and protecting compatible boiler components from excessive pressure.

This component is associated with part numbers 2000801904 and 0020014173 and is intended for compatible boiler installations where the existing pressure relief valve requires replacement.

ℹ️ Product Condition Options

This part may be available in New, Refurbished, or Compatible conditions. Please select your desired option from the dropdown menu above. All refurbished parts are professionally tested to ensure reliability.

Technical Insight & Common Failure Symptoms

The pressure relief valve (PRV) is an essential safety component within a sealed central heating system. It is designed to release excess water pressure when the system reaches the valve's specified pressure limit.

Over time, the valve may deteriorate, become contaminated, or fail to reseal correctly after activation.

Typical symptoms associated with a faulty pressure relief valve include:

• Water dripping or leaking from the pressure relief discharge pipe
• Continuous water discharge from the valve
• Repeated loss of pressure within the central heating system
• The valve failing to reseal after releasing excess pressure
• Visible signs of leakage or deterioration around the valve
• The need for replacement following boiler servicing or repair

A faulty PRV may also be a symptom of another heating system issue, such as an expansion vessel problem or excessive system pressure. Replacing the valve alone may not resolve the underlying cause.

Replacing a defective pressure relief valve with the correct compatible component may help restore the intended pressure protection and sealing function.

Compatibility

This pressure relief valve is intended for use within selected Glow-worm Flexicom boiler systems.

Compatible models for this listing include:

• Glow-worm Flexicom 18SX
• Glow-worm Flexicom 30SX

Associated Part Numbers:

• 2000801904
• 0020014173

The part number and valve configuration should be checked against the original component and the boiler manufacturer's technical documentation before ordering.

Please verify the boiler model, GC number, part number, and existing valve configuration against your boiler's technical manual or exploded parts diagram to ensure correct fitment.

Safety Advice

Pressure relief valves are safety-critical components within sealed heating systems and must only be inspected, installed, or replaced by a suitably qualified and competent heating engineer.

Always follow the boiler manufacturer's servicing and installation instructions. After replacement, the system should be checked for correct operation, leaks, and appropriate pressure conditions before being returned to service.

Never block, cap, or restrict the pressure relief discharge pipe, as this can compromise the safety of the heating system.