V&G Part L 15mm Compression Straight Filling Loop

The V&G Part L 15mm Compression Straight Filling Loop is a high-quality, reliable solution for topping up sealed central heating systems. Manufactured by Valogin, this filling loop is designed to meet the latest Part L Building Regulations, helping ensure energy-efficient and compliant installation in domestic heating systems. This straight filling loop features a flexible braided hose that makes installation easier—even in tighter spaces—while providing long-lasting durability. It comes pre-fitted with a chrome-plated (CP) isolating valve and a CP isolating double check valve, giving you full control and backflow protection during the filling process. These components are essential for preventing contamination of the mains water supply, maintaining both system safety and hygiene. Ideal for combination boilers that do not include a built-in filling loop, this product allows you to safely connect the mains cold water to the sealed heating circuit. It’s an essential piece of kit for topping up system pressure when required, such as after bleeding radiators or performing maintenance.

Frequently Asked Questions

What does "Part L compliant" mean?

Part L compliance means the filling loop meets current UK Building Regulations related to the conservation of fuel and power. It ensures the component supports energy-efficient operation and system integrity.

Why do I need a double check valve on a filling loop?

A double check valve prevents water from the heating system flowing back into the mains supply. This protects your drinking water from potential contamination and is a legal requirement in many systems.

Can I use this with any combi boiler?

Yes, this filling loop is compatible with most combi boilers that do not have an integrated filling loop. Just make sure your system uses 15mm compression fittings for proper installation.

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