SHENYANG, CHINA – Shenyang Baoruitong Automation Equipment Co., Ltd. (BRT) has achieved a significant R&D milestone with the official patent grant for its innovative Window and Door Physical Performance Testing Device (Patent No.: CN202321784206.9, Publication No.: CN220270719U, Patent literature >>>).
Invented by senior BRT engineers Minghui He and Chao Zhang, this patented testing system directly resolves a long-standing issue in the fenestration testing industry: conventional testing setups are restricted to single-parameter evaluations, requiring laboratories to purchase and operate separate machines for air tightness, water tightness, thermal insulation, and acoustic attenuation.
4-in-1 Integrated Physical Performance Diagnostics
BRT’s new patented design integrates four major building physics evaluations into a single, high-precision apparatus:
Air Tightness Testing: Utilizing a sealed chamber with a precision pressure gauge and dual intake/exhaust valve channels, an external vacuum pump generates negative pressure. Real-time pressure differential monitoring accurately quantifies air leakage rates.
Water Tightness Testing: By introducing pressurized water through the inlet valve system, engineers can assess liquid penetration and seal performance under controlled pressure differentials.
Thermal Transmittance ($K$-value / $U$-factor) Evaluation: The system incorporates a dedicated heating assembly inside the top cover plate alongside high-sensitivity temperature sensors. By directly radiating heat onto the specimen, it creates an exact thermal gradient to calculate overall heat transfer coefficients.
Acoustic Insulation Performance Measurement: Featuring internal sound-dampening insulation layers on the chamber walls and floor, noise interference is blocked. An embedded decibel meter measures pure sound transmission loss exclusively through the door or window specimen.
Precision Engineering for Reliable Testing
To guarantee strict test repeatability, the patented apparatus integrates a heavy-duty matrix mounting frame with guided prismatic pillars. Dual rubber seals (an inner rim gasket and top plate rubber plugs) prevent air or water leakage at specimen borders.
“Modern green building standards require comprehensive performance validation for doors, windows, and curtain walls,” stated BRT’s engineering division. “This multi-functional patented apparatus allows testing laboratories and fenestration manufacturers to complete multi-parameter compliance evaluations on one single station, drastically reducing capital expenditure and operational downtime.”
