V&G Std 15mm Compression Straight Filling Loop

The V&G Standard 15mm Compression Straight Filling Loop is an essential component for maintaining sealed central heating systems. Manufactured by Valogin, this high-quality braided filling loop is designed to allow safe and convenient topping up of a sealed heating circuit directly from the mains water supply. This straight filling loop is ideal for systems where the boiler does not have an integrated filling loop—particularly common with combination (combi) boilers. It's an important accessory that ensures your heating system maintains the correct pressure, helping to prevent performance issues or faults caused by low water pressure. Constructed with durable braided hose and fitted with reliable compression ends, the loop offers a secure and easy connection between your central heating and cold water supply. It’s simple to install and is suitable for both professional heating engineers and competent DIY users working on their own sealed system.

Frequently Asked Questions

What does a filling loop actually do?

A filling loop connects the mains water supply to your heating system to allow you to manually top up the pressure when it drops below recommended levels. This is essential for sealed systems to keep them running efficiently.

Is this filling loop compatible with all boilers?

This filling loop is compatible with most sealed system and combi boilers that use 15mm compression fittings and don’t have a built-in loop. Always check your boiler manufacturer’s instructions to confirm compatibility.

Can I install this filling loop myself?

If you’re confident in basic plumbing tasks, you may be able to fit it yourself. However, because this involves connecting to the mains water supply and a sealed heating system, it’s always best to consult or hire a qualified heating engineer to ensure it's fitted safely and in compliance with regulations.

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