Alde 22 mm Flow-Pipe Assembly – Automatic Air Bleed / Non-Return Valve

Alde 22 mm Flow-Pipe Assembly – Automatic Air Bleed / Non-Return Valve

The Alde 22 mm Flow-Pipe Assembly Complete is a genuine connection assembly used within Alde hydronic central heating systems to connect the boiler flow outlet to the wider heating circuit pipework in caravans and motorhomes. It features a rubber-connector assembly that includes an integral automatic air-bleed valve — to help remove trapped air in the heating loop — and a non-return valve to prevent unwanted backflow or auto-circulation when the system is not running.

This assembly helps ensure your boiler’s flow line maintains correct directional circulation and stable performance, especially after filling or bleeding operations.

Why Choose This Flow-Pipe Assembly?

• 🔁 Automatic Air-Bleed Valve — Releases trapped air from high points in the flow line for quieter, more efficient heating.

• 🔒 Non-Return Valve Included — Prevents retrograde fluid flow and auto-circulation within the loop when the pump isn’t operating.

• 🔄 Direct Boiler Flow Connection — Designed to fit the 22 mm output of Alde Compact and similar heaters.

• 🛠 OEM-Quality Part — Genuine Alde assembly made for reliable long-term performance in caravan/motorhome heating circuits.

Key Features & Specifications

What’s Included

• 1 × Alde 22 mm Flow-Pipe Assembly Complete – rubber connector body with integrated air-bleed valve and non-return valve.

How It Works

1. Install the assembly at the boiler’s 22 mm flow outlet (often the boiler’s designated flow port).

2. Secure to 22 mm pipework in your hydronic heating loop — ensuring a tight connection.

3. During filling and bleeding, the automatic bleed valve will release trapped air from the line, reducing noise and cold spots.

4. The non-return valve prevents fluid recirculation when the heating pump is stopped, ensuring correct flow direction and efficient operation.

By combining these features into a single assembly, you simplify installation and maintenance of the flow line in hydronic systems configured around Alde boilers.

Who It’s For

• Caravan and motorhome owners with Alde Compact series hydronic heating

• Technicians servicing or rebuilding boiler flow lines

• DIY installers ensuring proper connector and bleed points in heating circuits

Why Buy This Part?

Getting airflow out of a hydronic system’s flow line and preventing unwanted circulation are key to quiet, efficient heat distribution and reliable performance. This Alde 22 mm Flow-Pipe Assembly combines both functions and integrates smoothly with existing Alde boiler flow connections — making it ideal for service, replacement or upgrade of worn original parts