Product Overview

Core Product Competitive Advantages

1. Robust Flame‑Resistant Enclosure with Visual Observation Capability
   Main test compartment is built from stainless‑steel alloy, lined with non‑combustible high‑temperature‑resistant inner lining. Large transparent viewing window allows continuous visual tracking of flame movement and sample degradation without opening chamber doors. Tubular air‑intake assembly comes with built‑in filter unit, effectively blocking ambient airborne contaminants from interfering internal test atmosphere.
2. Precision‑Controlled Thermal‑Radiation Source System
   500 W‑rated Epiradiator‑type radiant‑heating unit stably generates standard‑specified 30 kW/m² heat‑flux output. Power‑controller modulates radiant‑energy magnitude; real‑time operating‑power read‑out minimises frequent recurring calibration workloads. 45‑degree inclined specimen‑bracket is fitted with stainless‑steel graduated ruler for straightforward flame‑spread‑distance measurementMade-in-Ch….
3. Dual‑Burner Ignition Assembly with Fine‑Tunable Flame Geometry
   Upper‑and‑lower independent stainless‑steel burners ignite volatilised flammable gases released from thermally stressed specimens. High‑precision needle‑valve hardware modulates gas‑supply to adjust flame height, paired with dedicated flame‑height reference gauge. Persistent pilot‑flame unit simplifies pre‑test burner ignition; quarter‑turn shut‑off tap enables fast gas‑circuit cut‑off for enhanced operational‑safety.
4. Multi‑Point Thermal‑Monitoring & Intelligent PLC Touch‑Screen Control
   Platinum‑resistance thermocouples are arranged at air‑inlet and exhaust‑outlet zones to record real‑time temperature‑difference data inside the cabinet. 7‑inch bilingual colour touch‑screen working under PLC logic supports freely‑configurable timing range from 0‑9999 seconds. Built‑in algorithm automatically computes core evaluation‑parameters: average‑flame‑height index, maximum‑flame‑index and combustion‑heat‑index. Test logs can be exported and printed directly for formal lab‑report‑archiving.
5. Complete Safety‑Oriented Mechanical Layout
   All gas‑circuit components work below 0.1 MPa working‑pressure limit. Main‑frame is assembled on heavy‑duty mobile casters for convenient workshop relocation. Host‑unit and specimen‑support‑table adopt split‑type construction for flexible‑on‑site installation and routine‑maintenance access.

Complete Technical Parameter Table

Compliance Standards: NF P92‑501, TB/T 2639.1

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation
   Position split‑type main‑unit and specimen‑table on level fire‑safe lab‑floor; lock mobile casters. Complete gas‑circuit‑connection and protective‑grounding. Power‑on PLC touch‑screen system. Inspect burner, pilot‑flame device, thermocouple sensors and filter‑element integrity. Prepare flat‑conditioned test‑specimen; configure target test‑duration via touch‑screen interface.
2. Specimen Mounting
   Secure flat sample firmly onto the 45‑degree inclined stainless‑steel test‑bracket. Verify alignment against measuring‑ruler scale. Close test‑chamber observation‑door. Activate pilot‑flame to pre‑ignite upper‑lower burners, adjust needle‑valve to set proper flame‑height according‑to‑standard‑requirements.
3. Thermal‑Radiation Exposure & Flame‑Propagation Test
   Start formal test‑sequence. Radiator outputs stable 30 kW/m² thermal‑radiant‑flux onto specimen surface. Sample gradually releases flammable volatile components which are ignited by burners. System continuously monitors temperature‑difference signal, meanwhile operators observe flame‑spread behaviour via viewing‑window.
4. Data‑Calculation & Test Termination

   When preset test‑time expires, equipment cuts‑off radiator and burner gas‑supply automatically. Built‑in software computes flame‑index, average‑flame‑height index, peak‑flame‑index and combustion‑heat‑index. Export or print test‑report files for record‑keeping.
5. Post‑Test Tidying
   Wait until chamber interior and hardware components fully cool‑down to safe‑ambient‑temperature. Open cabinet door and remove post‑combustion sample. Clear combustion‑residues inside chamber; inspect filter, thermocouples and burner‑nozzle for carbon‑deposit. Close gas‑source valve and shut‑off main‑power‑supply. Conduct periodic calibration for radiator and measuring‑sensors.

Wide Industrial Application Scenarios

Railway‑Vehicle Interior‑Material Manufacturers

Building‑Material & Construction‑Product Enterprises

Polymer‑Material R&D Departments

University Fire‑Safety‑Science & Material‑Research‑Laboratories

Third‑Party Accredited‑Fire‑Safety‑Testing‑Organizations

Standard Factory‑Full‑Delivery Kit

1. KR‑746 thermal‑radiation flame‑propagation‑tester main‑host unit
2. 45‑degree inclined specimen‑support‑table assembly with stainless‑steel measuring‑ruler
3. 500 W rated thermal‑radiation radiator assembly
4. Upper‑lower dual‑stainless‑steel burner set, pilot‑ignition and gas‑regulating‑valve hardware
5. Multi‑point thermocouple temperature‑monitoring module
6. PLC‑7‑inch bilingual touch‑screen control system with data‑export & print‑function
7. Power‑supply connecting‑cable
8. Multilingual printed‑operation‑manual complying with NF P92‑501, TB/T 2639.1
9. Factory‑issued performance‑inspection‑certificate

Optional spare‑parts: replacement air‑intake filter‑elements, burner‑nozzle accessories, additional thermocouple probes.

Global Distributor & After‑Sales‑Support

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