DexPro 2L Expansion Vessel with Pressure Valve

Dexpro Expansion Vessel with Check & Pressure Reducing Valve — Unvented Water Heater Accessory Kit

The Dexpro Expansion Vessel with Check & Pressure Reducing Valve is a complete safety and control solution designed for use with unvented water heater systems. Supplied as a combined kit, it helps manage thermal expansion, regulate incoming water pressure and protect unvented hot water installations from excessive pressure build-up.

This assembly is ideal for installers working on domestic and light commercial unvented systems where compliance, reliability and ease of installation are essential.

Designed for Unvented Water Heating Systems

When water is heated in a sealed system, pressure naturally increases. The expansion vessel safely absorbs this expansion, while the pressure reducing valve ensures incoming mains pressure is kept within safe operating limits. An integrated check valve prevents backflow, helping maintain system integrity and performance.

This makes the kit suitable for use with compatible Dexpro unvented water heaters and other unvented hot water cylinders where an expansion vessel is required.

Installer-Friendly, Pre-Matched Components

By combining the expansion vessel, check valve and pressure reducing valve into one matched assembly, Dexpro simplifies installation and reduces the need to source separate components. This helps save time on site while ensuring all parts are correctly specified for unvented applications.

Reliable Safety And Compliance Support

Designed to support safe system operation, this expansion vessel kit plays a key role in meeting unvented system requirements. Its robust construction ensures long service life, while the pressure control components help protect heaters, pipework and fittings from unnecessary strain.

Key Features of the Dexpro Expansion Vessel with Check & Pressure Reducing Valve Include:

• Expansion Vessel Designed For Unvented Water Heater Systems
• Supplied With Integrated Check Valve And Pressure Reducing Valve
• Controls Thermal Expansion And Regulates Mains Water Pressure
• Helps Protect Pipework And Water Heaters From Excess Pressure
• Pre-Matched Components For Faster, Easier Installation
• Suitable For Domestic And Light Commercial Applications
• Ideal Accessory For Dexpro Unvented Water Heaters
• Supports Safe And Compliant Unvented Installations

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