Vertical Fire Resistance Test Furnace for Building Elements，ISO 834 wall fire resistance testing furnace system

The Vertical Fire Resistance Test Furnace for Building Elements is designed for fire resistance testing of vertical building components, including non-loadbearing vertical partitions, fire doors, and fire shutters. The furnace is manufactured in accordance with the technical requirements of GB/T 9978. integrating the furnace body, furnace roof, steel test platform, exhaust and air supply system, combustion and gas supply system, and a comprehensive test control system.

With built-in calibration capability, the system ensures that furnace temperature, pressure values, and distribution meet standard requirements, making it suitable for standardized fire resistance testing and performance evaluation of vertical building elements.

Application

Vertical Building Elements

Fire resistance testing of non-loadbearing vertical partitions, walls, and separation elements.

Fire Doors and Fire Shutters

Performance evaluation of doors, rolling shutters, and related assemblies under standard fire exposure.

Building Fire Safety Evaluation

Verification of fire resistance performance for construction materials and assemblies used in buildings.

Fire Testing Laboratories and Certification Bodies

Standardized testing for product certification, compliance verification, and research applications.

Standards

The equipment complies with the following standards:

(1) GB/T 9978.4-2008 – Fire Resistance Tests — Elements of Building Construction — Part 4: Specific Requirements for Loadbearing Vertical Separating Elements

(2) GB/T 9978.8-2008 – Fire Resistance Tests — Elements of Building Construction — Part 8: Specific Requirements for Non-loadbearing Vertical Separating Elements

(3) GB/T 7633-2008 – Fire Resistance Test Methods for Doors and Shutters

(4) ISO 834 – Fire Resistance Tests — Elements of Building Construction

(5) EN 1363 – Fire Resistance Tests for Building Elements

Parameters

Item	Specification
Number of Burners	12 proportional flat-flame burners (6 on each side, 5 m furnace length)
Operating Temperature	Maximum test temperature 1250 °C
Design Temperature	1350 °C
Combustion Mode	Low-speed proportional flat-flame diffusion combustion
Gas & Air Pressure	≤ 4000 Pa
Flame Length	≤ 500 mm
Furnace Temperature Measurement Points	9 points
Thermocouple Sleeve Extension	≥ 25 mm
Temperature Accuracy	< ±15 °C
Fuel Gas	Liquefied petroleum gas
Equipment Dimensions	3 m (W) × 3 m (L) × 1.25 m (H)
Power Supply	AC 380 V, 70 kW
Equipment Weight	Approx. 5 t

Features

Stable Furnace Structure

Frame-type furnace body with refractory bricks and high-temperature insulation fiber ensures thermal stability while minimizing heat loss to the surrounding environment.

Safe and Practical Platform Design

Steel platforms are installed around the furnace to facilitate operator movement and on-site inspection.

Automatic Flame-Out Protection

If a burner extinguishes unexpectedly, the control system immediately triggers visual and audible alarms and automatically cuts off the LPG supply to the affected burner while allowing other burners to operate normally.

Comprehensive Gas Supply Control

Equipped with gas solenoid valves, proportional valves, ball valves, and gas transmitters to ensure accurate gas flow control and operational safety.

Optimized Combustion Air Control

Combustion air is supplied by a dedicated blower with frequency control to maintain an appropriate air–fuel ratio.

Independent Control System

Dedicated control components are used to manage combustion processes and accurately simulate standard fire curves.

Automatic Temperature Curve Correction

The actual furnace temperature curve is continuously compared with the preset curve, and deviations are automatically corrected through burner output adjustment.

Complete Data Storage

All automatic control and test data are stored in the computer system for traceability and accuracy verification.

Accessories

(1) Proportional flat-flame burners

(2) Gas solenoid valves and proportional valves

(3) Combustion air blower with frequency inverter

(4) Gas pressure regulators and filters

(5) Exhaust duct with refractory brick structure

(6) High-temperature exhaust fan with inverter

(7) PLC-based control system

(8) Computerized data acquisition and monitoring system

Test Procedures

Install the vertical test specimen securely on the steel test platform according to the relevant standard.

Set test parameters through the control system, including fire curve and test duration.

Start the combustion and air supply systems and initiate the fire resistance test.

Monitor furnace temperature, pressure, and combustion status in real time.

The control system automatically adjusts burner output to maintain the specified fire curve.

After completion of the test, shut down the gas supply and allow the furnace to cool before specimen removal.

Maintenance Information

Regularly inspect burners, gas pipelines, valves, and sensors to ensure safe operation.

Verify calibration of temperature and pressure measurement systems periodically.

Clean exhaust ducts and combustion components to prevent residue accumulation.

Ensure proper operation of the exhaust fan and combustion air blower.

Back up test data to maintain long-term traceability and compliance records.

Conclusion

The Vertical Fire Resistance Test Furnace for Building Elements provides a reliable and standardized solution for evaluating the fire resistance performance of vertical building components, doors, and shutters. With accurate temperature control, comprehensive safety protection, and automated data acquisition, the system supports compliance testing, fire safety research, and product certification in accordance with national and international standards.

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