PWTC66 series energy-saving exterior casement （hanging） window system is a high-end energy-saving exterior casement window system developed by our company based on European advanced technology and design concepts in response to the needs of the Chinese door and window market. It does not occupy indoor space, and does not affect the indoor aesthetics and excellent physical properties when opened. It has been recognized by users.

　　The system can be made into two kinds of external casement windows and external hanging windows, which can better meet different functional needs. Generally, casement windows are used for various functional rooms indoors, and hanging windows are used for public places and bathrooms.

　　系统 The system has a scientific and reasonable cross-section structure, standardized supporting hardware accessories, mature and standardized processing and construction technology, which can well guarantee the quality and performance of the product.

　　Features

　　1. Insulation performance: Insulating glass is configured as standard （6 + 12A + 6Low-E）, and the overall insulation performance can reach level 6, that is, 2.5> K≥2.0W / （m2? K）, and the configuration can be adjusted to 6 by adjusting Above.

　　2. Wind pressure resistance: rigid design meets different load requirements. The wind pressure resistance can reach more than 9 （P≥5.0KPa）.

　　3. Water-tight performance: a reasonable drainage water channel is provided, which is combined with dredging and blocking. Watertight performance can reach level 5 （500≤ △ P ＜ 700Pa）.

　　4. Air-tight performance: Reasonable structural design and high-quality sealing materials ensure the integrity of the seal. The air-tight performance can reach level 7 （the index value of unit seam grading index 1.0≥q1 ＞ 0.5 m3 / （m? H） or Area classification index value 3.0≥q2 ＞ 1.5m3 / （m2? H））.

　　5. Sound insulation performance: up to level 3 （30≤Rw + Ctr ＜ 35dB）.

　　6. Hardware accessories: adopt standard European standard hardware notches, which can be matched with many brand hardware.

　　7. Profile: The design wall thickness of all the main members is 1.8mm.