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SYA-86 Insulated Glass Steady-State U-value Heat Transfer Coefficient Tester

The U‑value (thermal transmittance) of insulated glass units is primarily determined using the guarded hot plate method. The U‑value objectively indicates the energy‑saving performance of insulated glass; installing windows and doors equipped with insulated glass having a lower U‑value can significantly enhance the overall energy efficiency of a building.

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Building Energy-Efficient Material Testing Equipment

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lbt@lbt.ltd

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SYA-86 Insulated Glass Steady-State U-value Heat Transfer Coefficient Tester

Description

Product Introduction:

Product Features:

The dual-specimen design incorporates a heating unit sandwiched between two specimens, with a cooling unit positioned on each outer side of the specimen. The specimens are mounted vertically to minimize the influence of convection between the hot and cold plates on the test results. Additionally, the left–right movement of the cold plate helps reduce the impact of convective heat transfer on the thermal conductivity coefficient.

2. Excellent temperature stability: The protective shield in the test apparatus effectively prevents heat loss from the hot plate and promptly replenishes energy, providing one-dimensional thermal insulation and significantly enhancing the temperature stability of the specimen.

3. The lower-level controller of the control system employs an integrated design that combines an imported PLC with a temperature expansion module.

4. Online dual‑point calibration: Our company employs online calibration of temperature and system error, ensuring accuracy, speed, and convenience.

5. High safety performance: The independent design of the electrical circuitry and the refrigeration cycle ensures that the electrical components are unaffected by the water system, thereby guaranteeing the stability of both the electrical equipment and data acquisition.

Technical Specifications:

Parameter Category	Parameter content
Specimen dimensions	800mmx800mmxH(10~70) mm
Heat transfer coefficient measurement range	(0.25–4.5) W/m²K
Heat transfer coefficient measurement accuracy	±3%
Repeatability of thermal conductivity measurement	±1%
Cold plate temperature measurement range	(-5 to 50)°C
Hot plate temperature measurement range	(10–80)°C
Temperature measurement value of the heat transfer coefficient tester: cold plate temperature	2.5°C
Hot plate temperature	17.5°C
Temperature resolution	0.01°C
Laboratory temperature	(23±2)°C
Laboratory humidity	(40-60)%RH
Power supply voltage	220V, 2kW
Number of specimens	2 pieces
Test equipment footprint: Length × Width × Height	1580mmx1000mmx1900mm

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FAQs

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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SYA-86 Insulated Glass Steady-State U-value Heat Transfer Coefficient Tester

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