3.2mm 4mm Solar Tempered Glass for Solar Water Heater Collector with High Light Transmittance

3.2mm 4mm Solar Tempered Glass for Solar Water Heater Collector with High Light Transmittance

Product introduction 

  3.2mm/4mm Solar Tempered Glass for Solar Water Heater Collectors (High Light Transmittance) is a scenario-specific safety glass tailored for the cover of solar water heater collectors (flat-plate/vacuum tube), optimized for 3.2mm and 4mm thicknesses to balance light transmission, strength, and thermal performance.

Specification

Feature 

1.Weather Durability: Resists UV radiation, extreme temperatures (-40℃ to 300℃), humidity, and corrosion, ensuring 10+ years of service life without yellowing or performance degradation.
2.Heat Loss Reduction: The tempered glass cover minimizes convective/radiative heat loss from the collector, enhancing the solar water heater’s overall thermal efficiency.

3. Optimal Thickness Design: 3.2mm (lighter, cost-effective for small/mid-size collectors) and 4mm (higher load-bearing, more durable for harsh outdoor conditions) meet different collector structure requirements.

4.Super High Light Transmittance: Typically ≥91% (for clear tempered glass) or ≥88% (for low-iron options), maximizing sunlight penetration to boost the collector’s heat-gathering efficiency (critical for solar water heating).
5.Tempered Safety Performance: 3-5 times stronger than ordinary glass; breaks into blunt, small fragments to avoid injury—essential for outdoor installation exposed to wind, hail, or falling debris.

Application

The 3.2mm/4mm High-Light-Transmittance Solar Tempered Glass is exclusively designed for solar water heater collectors (the core component of solar water heating systems), with applications focusing on matching different collector types, installation scenarios, and usage demands. Here are its key application scenarios