Positive-pressure explosion-proof cabinet
- Model: PXK51
- Brand: Hualong
- Category: Explosion-proof positive pressure cabinet
Consultation Hotline
Product Introduction
Positive-pressure explosion-proof cabinetApplicable Environment
suitable forChemical、OffshoreSupremedrilling platform、Metallurgy、pharmaceutical、LightIndustry、Textile、food、biologicalEngineering、AerospaceFutureAerospaceAerospaceEngineeringWith And MilitaryEtc.Explosive Gas Or DustEnvironmentIn,AsThreeRelated4LineSystem(380V/220V)CommunicationLowPressureElectricAppliancepower distributionsystempower supply Or ForDetectionInstrumentTable、AnalyzerTable、MonitorIgnoredAppliance、MicroElectricBrainTouch Screen、GreaterPowerInverterEtc.component的Monitoring And control。
Suitable for Zone 1 and Zone 2 hazardous locations.。Suitable for explosive gas atmospheres of Classes IIA, IIB, and IIC, with temperature groups T1-T4.。
Indoor、Outdoor Installation。
Pressurized Typeexplosion-proofCabinetadvantage
Positive-pressure explosion-proof cabinetadoptBrightCountryGermany Pilz Power DifferentialPressureSwitch And InstrumentTable,adoptAdvancedReputationAIRTACChocolateStationLinecomponent,Puremachinerycontrol,GreatersafetyGreaterActualUsersGreaterreliable。The automatic control system uses a liquid crystal display, with high integration, small size, stable operation, and visibility advantages.。
Positive-pressure explosion-proof cabinetIsOneVarioushavepower distributionfunctionPositive PressureventilationType的Explosion-proof positive pressure cabinet,QuiteCabinetDomesticair pressureGreaterIn500PAWhenmachineryFormautomaticUnloadPressureValveautomaticUnloadPressure,BoxDomestic的HeatQualityCanWithGasDrainOutputRemove,ventilationHeat DissipationBrilliant,QuiteLowIn100PAWhen,Audible and Visual Alarm LampAlarm,QuiteLowIn50PAWhen,automaticPower Off。
Uses an oil-water separator to separate oil and water, keeping the air entering the cabinet clean.。
The pressurized cabinet uses all flow equalizing tubes made of red copper tubing, which not only filters out many impurities but also maintains balanced air pressure inside the cabinet, truly achieving the pressurized explosion-proof effect.。
The pressurized automatic control system panel uses anti-static touch panels, with internal and external grounding for greater safety and reliability.。
A protective door is installed on the pressurized cabinet panel to prevent accidental operation.。
All sealing component screws are made of 304 stainless steel to prevent rusting.。
Positive-pressure explosion-proof cabinetfeature
FoundationProductmainlyBycabinet body、SelfControlsystem、clothStationsystem、Alarm System、power distributionsystemcomposition;cabinet bodyByPositive PressureCavity And ViceCavitycomposition,Positive PressureCavityDomesticInstallationUser的power distributionsystemcomponent,ViceCavityDomesticInstallationSelfControlsystem。
The cabinet type uses a GGD cabinet frame, with the main and auxiliary panels in a left-right structure, pedestal installation with cable trench, bottom cable entry, front door operation, and rear door maintenance.。
The box type uses high-quality steel plate welded construction, with the main and auxiliary panels in an upper-lower structure, wall-mounted installation, bottom cable entry, front door operation and maintenance.。
琴PlatformFormadoptExcellentQualitySteel PlateFoldStackWeldingCostType,Main、ViceDiscForFrontAfter-salesstructure,SeatFormInstallation,NextIncoming Line、琴PlatformOperate,After-salesSiemensOverhaul。
According to the air intake method, it is divided into ventilation type and compensation type.。The ventilation type provides uninterrupted continuous air supply, and the working heat of components in the pressurized chamber can be carried away with the air path, providing excellent heat dissipation, suitable for solving the heat dissipation problem of high-power explosion-proof frequency converters; the compensation type provides intermittent air supply, and the pressurized chamber must have good sealing to ensure low gas consumption.。
The user must provide the gas source, which should be purified air or nitrogen, with a gas source pressure of 0.2-0.8MPa; generally, instrument air at the user's site can meet the requirements.。
The steel plate material is generally GB710-88 cold-rolled steel plate, or GB3280-84 stainless steel material can be selected according to user requirements.。

Positive-pressure explosion-proof cabinetfunctiondescription
1. ProductsetupChangeStationConnectLock,ProductInvestOperateFront,OnlyWithAfterMainDiscDomesticCavityChangeStation, And achieveRegulations的ChangeStationTime And ChangeStationQualityAfter-sales,ensureMainDiscInternalBlowingbesidesFlammable and ExplosiveGas,ViceDiscAbilityAbilityRestrictedElectric, And OpenStartDetectionMainCavityair pressure,ensureProductInvestOperateWhen,ElectricAppliancecomponentalreadybeCleanMediumQualityWithEnergy-savingIsolationDistance。
2. Only when the air pressure in the main panel inner chamber meets the specified pressure requirements can the automatic power switching system in the auxiliary panel supply power to the main chamber.。
3. The working air pressure in the main panel inner chamber is 100Pa≤P≤1000Pa.。
When the air pressure exceeds 1000Pa, the automatic control system automatically closes the air inlet or opens the exhaust valve to automatically adjust the internal pressure, ensuring the product is not deformed or damaged by high-pressure impact.。
When the air pressure drops below 100Pa, the automatic control system automatically alarms and opens the air inlet to automatically adjust and replenish the internal air. If replenishment is successful, it automatically returns to normal; if unsuccessful and the internal pressure drops to 60Pa, the system can be set to automatically cut off power if necessary.。
4. The auxiliary panel automatic control system provides uninterrupted continuous monitoring and displays the pressure parameters of the main panel inner chamber.。

Technical Parameters
| Product Model | PXK51 |
| Product Brand | Hualong |
| Manufacturer | Henan Hualong Electrical Equipment Co., Ltd |
| Product Categories | Explosion-proof positive pressure cabinet |
ShouldUsersField
FoundationProducts widely used infollowingindustry And location:
Applicable Industries
- Petrochemical:Oil Refinery、Chemical Plant、Oil Field、Natural Gasstation、Oil DepotEtc.Flammable and Explosivelocation
- CoalcoalMine:Coal Mineunderground、Coal Preparation Plant、CoalChemicalEtc.WithExplosive GasEnvironment
- Electric Power & Energy:power plant、Substation、wind power generation、solarAbilitypower stationEtc.
- MetallurgySteel:SteelFactory、AluminumFactory、CopperFactory、MetallurgyWorkshopEtc.
- pharmaceuticalmanufacturing:Pharmaceutical Factory、pharmaceutical intermediateStructure、biologicalEngineeringEtc.
- Grain Logistics:grain reserve depot、Flour Mill、Feed MillEtc.Dust ExplosionHazardous Location
applicableHazardous Area
- Explosive GasEnvironment:Zone 1、Zone 2Hazardous Location
- Combustible DustEnvironment:Zone 20、Zone 21、Zone 22
- IIA, IIB, IIC explosive gas environments
- Temperature Group: T1-T6 (Maximum Surface Temperature ≤85℃)
Ordering instructions
ForensureyouorderProductmeet on-siteUseRequirements,Please inwhen orderingprovidefollowinginformation:
orderingDemandprovideinformation
- Product Model、specification And quantity
- Rated Voltage、Rated Current、Number of Poles
- Explosion-proof Markingrequirements
- Ingress Protection (IP) Ratingrequirements
- circuitquantity And EveryProductioncircuitCurrent、functionConfigure
- Inlet and Outlet Wire Methods
- Inlet and Outlet Thread Specifications and Quantity
- Enclosure Materialrequirements(Cast Aluminum/Steel Plate/Stainless Steel)
- IsnoneedAmmeter、Voltmeter、Indicator LightEtc.attachPlusfunction
Service Commitment
- FoundationCompanyProductstrictaccording toNational StandardProduction,Quality AssuranceRegular18ProductionMonth
- ProductOutputFactoryFrontAllAfter Strict Testing,Attached withhProductCertificate of Conformity、ManualEtc.documents
- can be based on user needsprovideTechnical Support And on-siteInstallationguidance
- provideComprehensive的After-sales Service,Warranty PeriodDomesticfreerepairreplacement