This 3/4″ Sealed System Safety Group – Expansion Vessel Bracket provides a complete, pre-assembled manifold for connecting an expansion vessel directly to closed-loop heating systems. Specifically, it provides a durable, secure, and highly reliable method of consolidating all essential system safety components into one compact wall-mounted unit. Furthermore, thanks to the integrated automatic air vent, pressure relief valve, and pressure gauge, you significantly speed up installation by eliminating the need to pipe these critical safety fittings separately.
Therefore, this safety Expansion Vessel Bracket works perfectly for domestic sealed central heating systems, unvented hot water setups, and biomass boiler installations. Additionally, it easily handles demanding applications, such as the safe, unrestricted monitoring and automatic pressure regulation of complex thermal networks requiring immediate visual diagnostics.
The assembly features a robust construction with a heavy-duty powder-coated steel bracket and high-quality brass safety components. Moreover, the material is completely corrosion-resistant, structurally reinforced to support the weight of a water-filled expansion vessel, and designed for continuous, leak-free operation. As a result, this solid build makes it fully dependable for long-term residential plant rooms and commercial heating installations.
Key Features & Benefits:
Comprehensive Safety Assembly: The system’s manifold design incorporates a 1/2″ (DN15) pressure relief valve and a top-mounted automatic air vent. Consequently, you achieve maximum system efficiency and maintain optimal pressure without the dangerous air locks or over-pressurization associated with poorly vented pipework.
Clear Visual Monitoring: The kit includes a high-visibility 0-6 bar pressure gauge featuring a clear red indicator for the safety limit. For example, if you are commissioning a newly sealed heating loop or diagnosing a fault, this integrated dial guarantees you can instantly verify system pressure without attaching external testing equipment. Ultimately, this allows you to create fully compliant and easily maintainable setups.
Sturdy Wall-Mounting Bracket: The heavy-duty red steel arm acts as a highly efficient support mechanism for the system’s expansion vessel. Importantly, it securely anchors to the wall via a pre-drilled flanged backplate, holding the heavy vessel firmly in place. Therefore, it guarantees fast and immediate stability even when the vessel bladder is fully loaded with system water.
Durable Brass Components: The high-quality brass construction of the PRV and air vent prevents structural degradation over time. In particular, this solid material also provides excellent temperature resistance, effectively handling constant thermal cycling in hot water applications with total reliability.
Technical Specifications:
Product Type: Sealed System Safety Group / Vessel Fixing Kit
Product Code: ZL-4033-3-4
System Connection: 3/4″ BSP
Vessel Connection: 3/4″ BSP Male
Pressure Relief Valve (PRV): 1/2″ DN15 Brass
Pressure Gauge Range: 0 to 6 Bar (with 3-bar red marker)
Air Vent: Automatic Air Vent (AAV)
Bracket Material: Heavy-duty Powder-Coated Steel (Red)
Component Material: High-quality Brass
Application: Central Heating, Sealed Systems, and Expansion Vessel Mounting