07/12/25

Functions of Fittings in PVC Windows

Hardware is a set of mechanisms and components that ensure the proper operation of a PVC window. Its key functions are:

1. Opening/Closing Control
   • Handles operate the window modes (swing, tilt).
   • Hinges allow the sash to move relative to the frame.
   • «Scissors» mechanisms enable the tilt‑ventilation mode.
2. Airtightness and Draft Protection
   • Cams (metal pins) firmly press the sash against the frame.
   • Keepers on the frame engage with the cams to ensure even pressure.
   • Sealing gaskets prevent cold, noise, and dust from entering.
3. Security
   • Anti‑burglary components (mushroom cams, protective plates) deter forced entry.
   • Child safety locks prevent opening from the inside.
   • Wind restrictors stop the sash from swinging open unexpectedly.
4. Ventilation
   • Micro‑ventilation mechanisms create a minimal gap for air exchange.
   • Ventilation stops (keeps) hold the sash in position for controlled airflow.
5. Durability and Maintenance
   • Anti‑corrosion coating protects metal parts from rust.
   • Adjustable mechanisms allow sash alignment.
   • Modular design enables replacing individual parts without changing the entire hardware set.
6. Aesthetics
   • Decorative covers hide hinges and fasteners.
   • A variety of handle designs complement interior styling.

High‑quality hardware ensures smooth window operation, airtightness, security, and long service life — provided it is correctly installed and regularly maintained.