Details
Introduction
The Vacuum Test Rig is a precision-engineered testing platform designed for simulating high-altitude conditions in controlled environments. Developed specifically for the aerospace sector, it replicates atmospheric pressures corresponding to altitudes up to 60,000 feet (18.2 km), enabling the rigorous evaluation of aerospace valves and components. It supports critical test procedures such as leakage detection, pressure response verification, and real-time flow rate analysis. Its robust construction,
integrated safety systems, and optional automation make it an indispensable tool for aerospace OEMs, MROs, and test labs.
Key Features
• Altitude Simulation: Accurately replicates conditions from sea level to 60,000 feet, covering the entire operational envelope of commercial and defence aircraft.
• Dual-Chamber Design: Includes independent cabin and altitude chambers to simulate realistic inter-compartment pressure differentials.
• Adjustable Flow Control: Delivers flow rates from 0.3 to 20 kg/min, ideal for both low-leakage and high-throughput applications.
• High-Precision Instrumentation: Integrated pressure transmitters, differential sensors, and digital mass flow meters from reputed brands like WIKA, Bronkhorst, and Siemens.
• Advanced Safety Mechanisms: Equipped with pressure relief valves, interlocks, and emergency shutdown features.
• User-Centric Interface: Digital control panel with manual overrides for intuitive operation and full process visibility.
Applications
• Aerospace Valve Testing: Cabin pressure regulators, ECS valves, safety relief valves, and fuel system components.
• Leakage Detection: Identify micro-leaks under altitude-induced pressure differentials.
• Flow & Pressure Characterization: Analyze behavior under dynamic flow conditions and verify regulatory compliance.
• Component Qualification: Supports endurance, response, and environmental testing for
OEM validation.
System Components & Technical Specifications
Chambers
Feature |
Specification |
Cabin Pressure Chamber |
Simulates pressurized internal aircraft conditions |
Altitude Chamber |
Mimics external atmospheric conditions |
Construction |
SS304-grade stainless steel |
Volume |
~0.55 ± 0.1 m³ each |
Vacuum Generation
Component |
Details |
Vacuum Pump |
High-capacity system capable of achieving 72 mBar absolute pressure |
Motor |
30 HP, 3-phase squirrel cage induction, 415V, 50Hz |
VFD |
Enables precise pump control and altitude profiling |
Flow & Pressure Control
• Modulating Valves: Electro-pneumatically actuated for smooth flow adjustments.
• Manual Valves: For isolation and safety control.
• Buffer Tank: 1 ± 0.2 m3 vacuum accumulator for stable pressure control.
Instrumentation
• Pressure Transmitters: 0–4 Bar (abs), 0–16 Bar (gauge)
• Differential Pressure Sensors: Up to 500 mBar
• Manometers: Water-filled and mercury-filled
• Flow Meters: Digital, real-time measurement devices
Control & Monitoring
• Digital Displays: Real-time pressure, flow, and vacuum readings
• Manual Controls: For on-the-fly adjustments
• Safety Interlocks: System disables if unsafe conditions are detected
Safety Features
• Pressure Relief Valves: Auto-activation to prevent overpressure conditions.
• Emergency Stop: Quick system shutdown in critical situations.
• Interlock Systems: Ensure safe operation and prevent unauthorized testing.
Compliance & Certifications
• Design Compliance: ANSI B16.5 Class #150 piping and fittings
• Valve Integrity: ANSI/FCI Class IV leakage standards
• Quality Assurance: Manufactured in ISO 9001, ISO 14001, ISO 45001-certified facilities
Utility Requirements
• Compressed Air: 12 kg/cm2 clean and dry air
• Cooling Water: 45 LPM continuous flow for vacuum pump cooling
• Electrical Supply: 415V, 3-phase, 50Hz
• Installation Space: Sufficient room for chamber access, maintenance, and ventilation
Maintenance & Support
Routine Maintenance Includes:
• Daily inspection of pump oil and belt tension
• Cooling system check before each operation
• Functional testing of safety interlocks and actuators
• Sensor calibration and valve responsiveness checks
Documentation Provided:
• Operation & Maintenance Manual
• Electrical & Pneumatic Circuit Diagrams
• Assembly & Layout Drawings
• Calibration Certificates
• Preventive Maintenance Schedule
Spare Parts Availability:
• OEM parts for valves, sensors, pumps, and motors
• Optional kits: pressure transmitters, actuator parts, seals, relays
Technical Support:
• 24x7 Remote Engineering Support
• Onsite Commissioning & Training
• Annual Maintenance Contracts (AMCs)
• Recalibration Services
Optional Integration & Automation
SCADA-Based Control:
• HMI/PLC/SCADA remote control & monitoring
• Alarm/event logging, data trending, audit trails
• Barcode/RFID integration for traceability
Automated Test Sequences:
• Pre-programmed altitude/pressure profiles
• Fatigue and cyclic test programming
• Multi-point test modes
DAQ & Connectivity:
• USB/Ethernet/Cloud data export
• Compatible with Industrial IoT systems
• SQL/CSV data logging
Advantages Over Conventional Systems
• Altitude Simulation Accuracy: True in-flight condition replication
• Dual-Chamber Flexibility: Tests inter-compartment pressure control components
• True Mass Flow Measurement: Real-time data unaffected by pressure/temp variations
• Enhanced Safety: Both mechanical and electronic fail-safes
• Modular & Customizable: Easily scalable for production or R&D environments
Technical Summary
Parameter |
Specification |
Altitude Range |
0–60,000 ft (0–18.2 km) |
Vacuum Pressure |
Down to 72 mBar |
Flow Capacity |
0.3 – 20 kg/min |
Chamber Volume |
0.55 ± 0.1 m³ (x2) |
Vacuum Tank |
1 ± 0.2 m³ |
Vacuum Pump |
30 HP with VFD |
Instrumentation |
Siemens, WIKA, Bronkhorst, FITZER |
Power Supply |
415V, 3-Phase, 50Hz |
Compressed Air |
12 kg/cm² |
Cooling Water |
45 LPM continuous |
Control Interface |
Digital + Optional SCADA |
Typical Components Tested
• Cabin Pressure Regulators
• Environmental Control System (ECS) Valves
• Safety Relief Valves (SRVs)
• Altitude Hold Valves
• Interconnecting Line Valves (ILVs)
• Bleed Air Modulators
• Fuel Tank Inerting Valves
• Emergency Venting Systems
Standards & Compliance Support
• MIL-STD-810: Altitude Testing
• RTCA DO-160: Environmental Conditions
• ASTM F37: Gasket Sealability
• ISO 8573-1: Compressed Air Quality
• ISO 12100 / IEC 60204-1: Machinery Safety
Custom certification packages available for CE, UL, or aerospace-specific validations upon request.
Ordering & Customization
Each unit is built-to-spec based on your testing envelope and application. Available customization options include:
• Larger or smaller chambers
• Extended flow ranges
• Compatibility with helium, nitrogen, or other gases
• Environmental conditioning add-ons (humidity, temperature)
• Integration with client-specific software or automation systems