Manual Window Controls

Top Hung vents are versatile systems used to operate single or multiple high level windows, using a single remote handle. The chain operator can be fitted to most styles of PVC, aluminium, timber or steel windows and depending on height limitations, vents can be opened to 250mm, 380mm or 500mm to provide a natural ventilation strategy.

Recommended Opening Mechanisms: Chain opener 250mm, 380mm, 500mm


Solitairio 250mm

Bottom hung vents are inward opening and designed for opening sizes where height is restricted. The vent can be operated by either a standard chain mechanism or a locking opener for windows with minimal fixed frame at the head of the window. Bottom hung vents work on all styles of window, including timber, steel and aluminium and can be opened to 250mm, 350mm and 600mm.

Recommended Opening Mechanisms: Chain opener 250mm, 380mm, 600mm with Fall Back Kit


Locking opener

Side hung vents have hinges on the bottom and top of the opener. The window is controlled by tracks and slides and pushes out from the side like a door being opened with the handle at the side of the window. A side hung window friction hinge can improve UPVC, aluminium or timber double glazed windows. Vents can be opened to 250mm, 380mm and 600mm distances to provide natural ventilation.

Recommended Opening Mechanisms: Chain opener 250mm, 380mm, 600mm


Solitairio 250mm

Parallel opening windows can be used to optimise natural ventilation and air exchange without compromising safety and security. Fresh air is drawn in via the bottom and side of the vent while stale air is expelled via the top. Parallel openers are ideal for insertion into curtain wall facades in both low and high rise commercial buildings and can be used as either replacement windows in existing buildings or for installation into new builds.

Recommended Opening Mechanisms: Chain opener 250mm

At LJ Pratley & Partners, we have used the vast knowledge and expertise developed over many years to design our very own bespoke manual sliding sash control system. The design features a track system with flag end cables, which pulls and pushes the window up and down in sync with a turn of a handle and is recognised as one of the leading sliding sash controls available in the marketplace.