SongXin HVAC Solutions

Engineering Climate Control for Critical Infrastructure

Precision environmental management for 24/7 mission-critical facilities—airports, hospitals, metro systems, and transportation hubs. Delivering unwavering reliability, safety compliance, and operational excellence where failure is not an option.

99.7%
System Uptime
25-35%
Energy Savings
24/7
Continuous Operation
ISO
Certified Compliance

Explore Our Infrastructure Application Solutions

Comprehensive HVAC systems engineered for the world's most demanding public and industrial facilities—delivering precision climate control, energy efficiency, and mission-critical reliability across diverse infrastructure environments.

Airport HVAC Systems Climate control solutions for airport terminals and aviation facilities

Airport Facilities

Climate Excellence for Global Aviation Hubs

Airports represent one of the most complex HVAC challenges: enormous terminals with 10-30 meter ceiling heights, dramatic occupancy fluctuations, and absolute 24/7 operational demands with zero tolerance for downtime.

  • Long-throw jet diffuser technology for 20-30m ceilings
  • Stratified airflow achieving 25% energy savings
  • Smart zoning for terminals, hangars, and control towers
  • Noise levels below 58 dB for acoustic comfort
  • Energy recovery reclaiming up to 60% exhaust heat
  • All-weather reliability from coastal to frost conditions
Ideal For: Passenger terminals, baggage handling areas, aircraft hangars, control towers, VIP lounges, cargo facilities
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Healthcare HVAC Systems Medical-grade air management for hospitals and healthcare facilities

Healthcare Facilities

Medical-Grade Air Management for Patient Safety

Healthcare environments demand absolute precision where air quality directly influences patient outcomes, infection prevention, and medical procedure success—maintaining sterile operating theaters and isolation rooms continuously.

  • ISO Class 5-7 cleanroom standards with H14 HEPA filtration
  • Automated pressure control (±5 Pa) for sterile zones
  • Temperature stability within ±1°C and ±5% RH
  • Multi-stage filtration with antibacterial coatings
  • Noise levels below 55 dB for patient rest
  • Energy recovery achieving 35% operational savings
Ideal For: Operating rooms, intensive care units, patient wards, laboratories, pharmacies, isolation rooms, administrative offices
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Rail Transit HVAC Systems Underground climate control and emergency safety for metro systems

Rail Transit Systems

Underground Climate Control and Emergency Safety

Metro and urban rail networks present unique challenges: confined underground spaces, massive air volume requirements, continuous 24/7 operation, and stringent fire safety standards requiring integrated smoke extraction capabilities.

  • EN 12101-3 certified fire safety and smoke extraction
  • Bidirectional jet fan ventilation for emergencies
  • N+1 redundancy ensuring 99.7% system uptime
  • Precision cooling (±1°C) for control room electronics
  • Noise levels below 60 dB in passenger areas
  • Energy recovery reducing consumption by 30%
Ideal For: Station halls, platforms, tunnel sections, control rooms, signal rooms, vehicle depots, ticketing zones
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Integrated Infrastructure HVAC Unified climate management for multi-function facilities

Integrated Infrastructure

Unified Climate Management Across Multi-Function Facilities

Complex infrastructure developments combining transportation terminals, administrative facilities, commercial spaces, and technical support zones require adaptive HVAC architectures under intelligent centralized management.

  • Comprehensive product portfolio for all zones
  • Modular design enabling custom configurations
  • Energy optimization achieving 30% reduction
  • Explosion-proof configurations with ATEX certification
  • Unified BMS platforms for single-interface control
  • 24/7 operation with predictive maintenance
Ideal For: Multi-modal transportation hubs, energy generation facilities, mixed-use complexes, utility buildings, control centers
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Why Choose SongXin for Critical Infrastructure?

Decades of proven performance in environments where system failure directly impacts public safety, operational continuity, and service delivery—backed by comprehensive engineering expertise and global compliance standards.

Mission-Critical Reliability 99.7%+ uptime for continuous infrastructure operation

Mission-Critical Reliability

Decades of proven performance in environments where system failure directly impacts public safety, operational continuity, and service delivery—documented 99.7%+ uptime across demanding installations.

Infrastructure-Specific Engineering

Deep understanding of unique operational challenges including variable occupancy loads, confined installation spaces, fire safety integration, emergency response requirements, and continuous operation demands.

Infrastructure-Specific Engineering Custom engineering for unique infrastructure challenges
Comprehensive Safety Compliance Complete certification portfolio including EN, ISO, ASHRAE standards

Comprehensive Safety Compliance

Complete certification portfolio including EN 12101-3 (smoke/heat control), ISO 13485 (medical devices), ASHRAE 170 (healthcare ventilation), ISO 14644 (cleanrooms), and explosion-proof ATEX standards.

Advanced Fire Safety Integration

Dedicated smoke extraction systems, fire-resistant construction, automatic alarm linkage with building fire control, and emergency mode validation ensuring life safety protection.

Advanced Fire Safety Integration Emergency smoke extraction and fire safety systems
Intelligent Automation Unified BMS platforms with AI-powered monitoring and control

Intelligent Automation

Unified BMS platforms providing real-time monitoring, predictive fault detection, remote diagnostics, energy analytics, and automated emergency response across all facility zones.

Energy Efficiency Leadership

Heat recovery systems, variable-speed drives, stratified airflow management, and intelligent load optimization delivering 25-35% energy savings without compromising performance or safety.

Energy Efficiency Leadership 25-35% energy savings through advanced optimization
Turnkey Project Delivery End-to-end responsibility from design to lifecycle maintenance

Turnkey Project Delivery

End-to-end responsibility spanning conceptual design, CFD airflow simulation, equipment manufacturing, installation supervision, commissioning, operator training, and lifecycle maintenance support.

Core Technologies Across Infrastructure Applications

Advanced engineering solutions delivering precision climate control, energy efficiency, and safety compliance across the world's most demanding infrastructure environments.

Long-Throw Jet Diffuser Systems Effective airflow across 20-30 meter ceiling heights

Long-Throw Jet Diffuser Systems

Custom-engineered aerodynamic diffusers delivering conditioned air effectively across 20-30 meter ceiling heights in airport terminals and station halls—achieving uniform temperature distribution while minimizing energy waste.

Stratified Airflow Management 25% energy reduction through targeted occupied-zone cooling

Stratified Airflow Management

Advanced control strategies focusing cooling and heating only where people are present rather than conditioning entire space volumes—reducing energy consumption by 25% in large-volume environments.

Emergency Smoke Extraction EN 12101-3 certified rapid smoke removal systems

Emergency Smoke Extraction

EN 12101-3 certified systems providing rapid smoke removal and heat control during fire emergencies—featuring fire-resistant construction, high-temperature operation capability, and automatic activation through fire alarm integration.

Pressure Cascade Control ±5 Pa differential pressure management for cleanrooms

Pressure Cascade Control

Intelligent differential pressure management maintaining positive pressure in sterile zones and negative pressure in containment areas—automatically adjusting airflow to sustain specified pressure differentials within ±5 Pa.

Medical-Grade Filtration 99.97% particle removal with H13/H14 HEPA filters

Medical-Grade Filtration

Multi-stage purification architectures (G4 + F7 + H13/H14 HEPA) with antibacterial coatings removing 99.97% of particles ≥0.3μm—achieving ISO Class 5-7 cleanroom standards for healthcare and pharmaceutical applications.

Energy Recovery Ventilation 60-70% exhaust thermal energy reclamation

Energy Recovery Ventilation

High-efficiency heat exchangers reclaiming 60-70% of exhaust thermal energy for incoming air conditioning—dramatically reducing primary heating/cooling loads while maintaining required air change rates and indoor air quality.

Acoustic Optimization Noise levels below 55-60 dB in public environments

Acoustic Optimization

Multi-layer noise control through aerodynamic fan blade design, vibration isolation, acoustic insulation, and precision balancing—maintaining operational noise below 55-60 dB in passenger environments and even lower in clinical settings.

N+1 Redundancy Architecture Automatic failover ensuring continuous operation

N+1 Redundancy Architecture

Mission-critical reliability through backup equipment configurations ensuring continuous operation during maintenance or component failure—automatic failover maintaining environmental stability without manual intervention.

Technical Specifications Across Applications

Comprehensive performance parameters demonstrating our engineering capabilities across diverse infrastructure environments—from extreme temperature ranges to precision humidity control and acoustic optimization.

Specification Category Airport Facilities Healthcare Facilities Rail Transit Systems Integrated Infrastructure
Temperature Range 18-26°C (terminal areas)
10-35°C (hangars)
20-24°C (patient areas)
18-22°C (operating rooms)
18-28°C (stations)
15-30°C (tunnels)
16-28°C (offices)
10-40°C (technical zones)
Humidity Control 40-60% RH
±10% tolerance
30-60% RH
±5% precision control
40-70% RH
±15% tolerance
30-70% RH
Variable by zone
Air Change Rate 6-12 ACH (terminals)
4-8 ACH (offices)
15-25 ACH (operating rooms)
6-12 ACH (patient wards)
10-20 ACH (platforms)
6-15 ACH (control rooms)
4-20 ACH
Application-dependent
Airflow Velocity 0.15-0.25 m/s (occupied zones)
0.5-1.0 m/s (jet diffusers)
0.12-0.18 m/s (patient areas)
0.25-0.35 m/s (laminar flow)
0.2-0.5 m/s (platforms)
3-8 m/s (emergency extraction)
0.15-0.3 m/s (offices)
0.5-2.0 m/s (industrial)
Filtration Standards G4 + F7 (pre + medium)
Optional F9 for VIP areas
G4 + F7 + H13/H14 HEPA
ISO Class 5-7 cleanrooms
G4 + F7 (standard)
F9 for control rooms
G4 to H14
Application-specific
Noise Levels ≤58 dB(A) (public areas)
≤50 dB(A) (VIP lounges)
≤55 dB(A) (patient wards)
≤48 dB(A) (operating rooms)
≤60 dB(A) (platforms)
≤55 dB(A) (control rooms)
≤60 dB(A) (offices)
≤75 dB(A) (industrial)
Pressure Control Neutral to slight positive
±2 Pa tolerance
+5 to +15 Pa (sterile zones)
-5 to -15 Pa (isolation rooms)
Neutral (stations)
Negative (tunnels)
Zone-dependent
±5 Pa precision
Energy Recovery 50-60% thermal efficiency
Plate/rotary heat exchangers
60-70% thermal efficiency
Run-around coil systems
45-55% thermal efficiency
Heat pipe technology
50-70% thermal efficiency
Multiple technologies
Fire Safety EN 12101-3 smoke extraction
Fire dampers at penetrations
Fire-rated ductwork
Automatic shutdown sequences
EN 12101-3 certified
Bidirectional jet fans
Application-specific
Full compliance portfolio
System Redundancy N+1 for critical zones
Automatic failover
N+1 minimum (operating rooms)
2N for critical care
N+1 for all systems
Manual override capability
N to 2N
Risk-based design
Control Systems BACnet/Modbus integration
Centralized BMS monitoring
Medical-grade BMS
Pressure/temp alarms
SCADA integration
Real-time monitoring
Unified BMS platform
Multi-protocol support
Maintenance Access 24/7 scheduled maintenance
Modular component design
Hot-swappable filters
Minimal disruption protocols
Night maintenance windows
Redundant operation during service
Flexible scheduling
Predictive maintenance
Scroll horizontally to view all specifications

Global Project Excellence

Proven performance across the world's most demanding infrastructure projects—delivering mission-critical reliability, energy efficiency, and operational excellence in diverse climatic and regulatory environments.

Beijing, China
Beijing Daxing International Airport HVAC Project World's largest single-terminal airport climate control system

Beijing Daxing International Airport

Aviation Infrastructure | Terminal HVAC

World's largest single-terminal airport featuring 700,000 m² of conditioned space with 25-meter ceiling heights. Our long-throw jet diffuser systems and stratified airflow management deliver uniform comfort across massive public areas while achieving 28% energy savings compared to conventional designs.

700,000 m²
Conditioned Area
28%
Energy Savings
99.8%
System Uptime
Long-Throw Diffusers Stratified Airflow Energy Recovery BMS Integration
Shanghai, China
Shanghai Proton Heavy Ion Center HVAC Project Medical-grade cleanroom climate control for cancer treatment facility

Shanghai Proton and Heavy Ion Center

Healthcare Facility | Medical Cleanroom

China's first proton therapy cancer treatment center requiring ISO Class 6 cleanroom standards with ±1°C temperature stability. Multi-stage H14 HEPA filtration and automated pressure cascade control ensure sterile treatment environments while maintaining 99.97% particle removal efficiency.

ISO 6
Cleanroom Class
±1°C
Temp Precision
99.97%
Filtration Efficiency
H14 HEPA Filtration Pressure Cascade Precision Control Medical BMS
Shenzhen, China
Shenzhen Metro Line 6 HVAC Project Underground rail transit ventilation and emergency smoke extraction

Shenzhen Metro Line 6

Rail Transit | Underground Ventilation

37-kilometer underground metro line with 20 stations requiring comprehensive tunnel ventilation and emergency smoke extraction. EN 12101-3 certified bidirectional jet fans and N+1 redundancy ensure passenger safety during emergencies while maintaining comfortable platform temperatures year-round.

37 km
Line Length
20
Stations Equipped
99.7%
System Reliability
Jet Fan Ventilation Smoke Extraction N+1 Redundancy SCADA Control
Dubai, UAE
Dubai International Airport Terminal 3 HVAC Project Extreme climate HVAC solution for world's busiest international airport

Dubai International Airport Terminal 3

Aviation Infrastructure | Extreme Climate

World's busiest international airport terminal operating in extreme desert conditions (50°C+ ambient). Advanced thermal insulation, high-efficiency chillers, and intelligent load management maintain comfortable 22-24°C interiors while achieving 32% energy reduction through heat recovery and variable-speed optimization.

1.7M m²
Terminal Area
32%
Energy Reduction
50°C+
Ambient Temp
High-Efficiency Chillers Thermal Insulation Load Management VFD Optimization