Heatrae Sadia 95607030 Complete 6 Bar Expansion Valve for Premier Plus & Unvented Cylinders

Genuine Heatrae Sadia 95607030 Complete 6 Bar Expansion Valve

The genuine Heatrae Sadia 95607030 Complete 6 Bar Expansion Valve is a replacement pressure-relief and expansion-control valve designed for selected unvented hot water cylinder systems.

This genuine replacement valve helps regulate system expansion pressure and protect the hot water cylinder from excessive pressure build-up during normal operation. Maintaining a correctly functioning expansion valve is essential for safe system performance and ongoing compliance within unvented hot water installations.

Manufactured to original Heatrae Sadia specifications, this complete valve assembly is designed for dependable compatibility and long-term reliability.

Compatible Models

Compatible with selected:

Santon Premier Plus

• 100B Indirect
• 100E Direct
• 120B Indirect
• 150B Indirect
• 150E Direct
• 170B Indirect
• 170E Direct
• 210B Indirect
• 210E Direct
• 250B Indirect
• 250E Direct
• 300B Indirect
• 300E Direct

Santon Premier Plus Solar

• PP170E Solar
• PP210B Solar
• PP210E Solar
• PP250B Solar
• PP300B Solar
• PP300E Solar

Main Unvented Cylinders

• Main Unvented 120L Indirect
• Main Unvented 150L Indirect
• Main Unvented 170L Indirect
• Main Unvented 210L Indirect
• Main Unvented 250L Indirect
• Main Unvented 300L Indirect

Elson Zircon & Elson Cylinder

• Elson Zircon Direct 120L
• Elson Zircon Direct 150L
• Elson Zircon Direct 170L
• Elson Zircon Direct 210L
• Elson Zircon Indirect 210L
• Elson Zircon Indirect 250L
• Elson Zircon Indirect 300L
• Elson Cylinder 120D

William Wilson Express

• 120L Direct
• 150L Direct
• 150L Indirect
• 170L Direct
• 170L Indirect
• 190L Solar Indirect

Additional Compatible Systems

• Pullin Evolution
• Baxi Megalife Premier Plus Solar

Always verify the appliance model and existing part number before ordering.

What Does an Expansion Valve Do?

Within an unvented hot water cylinder system, the expansion valve helps:

• relieve excess pressure caused by water expansion
• Protect the cylinder and associated components
• support safe system operation
• maintain stable operating pressure
• assist compliance with unvented cylinder safety requirements

A faulty expansion valve can lead to:

• discharge pipe dripping
• excessive system pressure
• pressure fluctuations
• nuisance valve activation
• reduced system efficiency

Replacing worn or damaged valves with genuine manufacturer-approved parts helps maintain safe and reliable operation.

6 Bar vs 8 Bar Expansion Valves

This product is the genuine 6-bar expansion valve version used on selected unvented cylinder systems.

Some Heatrae Sadia and compatible cylinders instead use an 8 bar expansion valve, depending on the appliance design and system specification.

If you require the 8-bar version, see the genuine Heatrae Sadia 95607028 Complete 8 Bar Expansion Valve.

Always confirm the existing valve rating and appliance model before ordering.

Product Features

• Genuine Heatrae Sadia spare part
• Complete 6-bar expansion valve assembly
• Designed for unvented hot water cylinders
• Suitable for direct, indirect, and solar systems
• Helps protect against excessive system pressure
• Manufactured for correct fit and compatibility

Why Choose Genuine Heatrae Sadia Spare Parts?

Using genuine manufacturer-approved spare parts helps maintain the original safety, efficiency, and operational standards of your hot water system. Genuine Heatrae Sadia components are designed specifically for compatible cylinders to ensure dependable performance and reliable compatibility.

At Heatraq, we supply genuine Heatrae Sadia and Baxi spare parts trusted by installers, engineers, and maintenance professionals throughout the UK.

Browse our wider range of Safety & Relief Valves and Water Control & Regulation Valves for additional genuine replacement components.