Square backplate with straight fitting

The Square Backplate with Straight Fitting by Sistem Air is an essential component for connecting vacuum inlets to the main pipe network in central vacuum systems. Proper mounting of the backplate is crucial to ensure a secure, airtight connection and maintain the vacuum efficiency and performance of the entire system.

The straight fitting configuration is particularly suitable for renovations, partition walls, or mobile wall structures. Its versatile design allows quick, stable installation even in non-standard wall constructions, making it an excellent choice for modern building layouts.

Backplate Mounting

Installing the backplate requires precision to avoid misalignment during the mounting of the vacuum inlet. The backplate must always be positioned flush with the wall surface to ensure a perfect seal and proper alignment. Designed for easy installation on both masonry and plasterboard walls, it includes dedicated fixing holes for secure fastening.

Wall and Plasterboard Installation

The backplate can be installed on traditional brick walls or plasterboard panels. Below are the recommended installation methods:

Wall Installation	Plasterboard Installation
Precise positioning is required to ensure that the sealing elements fit perfectly when the vacuum inlet is later installed. The backplate housing must always be aligned flush with the finished wall.	Using the fixing holes on the mounting frame, the backplate can be easily secured to plasterboard walls. As with solid walls, it should be mounted flush with the surface.

Solutions for Wall Surface Irregularities

In some cases, the wall surface may have irregularities that prevent a perfect fit of the backplate. Extension sleeves can be used to correct alignment issues without the need to redo the wall finish.

Recess up to 7 mm	Recess up to 12 mm	Recess over 12 mm
When the backplate is recessed up to 7 mm from the wall surface, no correction is required.	For recesses up to 12 mm: shorten the vacuum inlet, move the O-ring inward, and use the extension Art. 1457.1.	For recesses over 12 mm: use the Art. 1457.1 inlet extension and trim it as needed.

The Square Backplate with Straight Fitting by Sistem Air is the ideal solution for creating a reliable and efficient central vacuum system. Thanks to its innovative design, easy installation, and compatibility with various wall types, it ensures professional performance and long-lasting results. Whether for residential or commercial applications, this backplate guarantees airtight connections and dependable functionality.