Accelerated Life Test Bench / Hydrogen PRV Qualification System / ISO 12619 Part 10 · UN ECE R134 · AIS-157 / Noida · India 2026 · Product Page

Accelerated Life Test Bench

PRV life cycling. Standards-aligned.

Turnkey automated test bench for accelerated life and endurance validation of hydrogen Pressure Relief Valves. Repeated pressurisation, controlled venting, reseating observation and traceable reporting as per ISO 12619 Part 10, UN ECE R134 and AIS-157.

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Accelerated Life Test Bench — hydrogen PRV endurance test bench — Neometrix

Fig · 01Accelerated Life Test Bench — PLC-controlled PRV cycling with enclosed safety chamber

Max Pressure

1000bar

Cycle Count

100kconfigurable

Pressure Accuracy

±0.25% FS

Control

PLC+ 15″ HMI

Standards

ISO12619-10

Overview

Accelerated endurance. Traceable results.

The Accelerated Life Test Bench evaluates the long-term functional reliability of hydrogen Pressure Relief Valves by subjecting them to repeated pressure cycles and actuation events under controlled conditions. The machine verifies that the valve opens, relieves, reseats and remains functional after the programmed endurance cycles.

Accelerated Life Test Bench — detail view 2

Fig · 02 Safety chamber door and high-pressure manifold detail — interlocked enclosure

Repeated pressurisation. Safe venting. Automatic reseating verification — cycle after cycle.

Supplied as a modular skid or enclosed cabinet with gas supply, pressure control, PRV test fixture, vent collection, DAQ, PLC/HMI and safety interlocks. Hydrogen service available as an optional configuration with gas detection, purging and hazardous area safety logic.

Component scope: Pressure Relief Valve (PRV) for hydrogen fuel-system applications. Other PRV assemblies may be accommodated via fixture/adaptor design. PRD/TPRD devices are not the primary scope unless separately specified.

Test objective: Simulate repeated life-cycle operation, verify set pressure, opening behaviour, pressure relief function, reseating and leakage performance after cycling. Generate traceable records for qualification, regulatory review and customer approval.

Report output: Password-protected test report with pressure-time graph, cycle summary and pass/fail status automatically generated at test completion.

Key Features

Engineering highlights.

Design features that deliver safety, test integrity, automation and traceability for hydrogen PRV endurance validation.

Feature · 01

Blast-Resistant Test Chamber

Guarded test enclosure with door interlock and internal drain/vent provision. Chamber door cannot open during pressurisation; the system inhibits pressurisation when the door is open or any safety interlock is unhealthy.

Blast-Resistant · Door Interlock · Interlocked

Feature · 02

Programmable Pressure Control

Programmable ramp/hold/relief/reset sequence with closed-loop pressure control. Cycle count configurable from 1 to 100,000 cycles with batch, part and serial number traceability.

Programmable Ramp · Closed-Loop · Configurable Cycles

Feature · 03

Automatic Opening Detection

PRV opening event detected by pressure drop, flow rise, acoustic signal or combined sensor logic as per valve design. Reseating and pressure recovery condition monitored automatically.

Pressure Drop · Flow Detection · Acoustic/Switch

Feature · 04

High-Speed Data Acquisition

High-speed DAQ records pressure-time profile, cycle count, actuation events and alarm history with time stamp. Operator login, component serial number and calibration ID recorded for full traceability.

DAQ · Time-Stamped · Traceable

Feature · 05

Integrated Safety Logic

E-stop chain, auto-depressurisation, gas detection interface, safe vent line, nitrogen purge before/after hydrogen service. ATEX/IECEx-ready electrical architecture for hydrogen hazardous area.

E-Stop · Auto-Vent · Gas Detection

Feature · 06

Automatic Report Generation

PLC/SCADA with recipe management generates PDF, Excel and CSV reports with pressure-time graphs and cycle summary. Final functional and leakage check incorporated into the test sequence.

PDF · Excel · CSV · Graphs

Gallery

Product views.

Fig · Gallery3-view photo documentation — Accelerated Life Test Bench

Fig · GalleryStudio view — Accelerated Life Test Bench

Specifications

Technical parameters.

Test Type	Accelerated life / endurance cycling test for PRV
Applicable Standard	ISO 12619 Part 10, UN ECE R134, AIS-157
Test Component	Hydrogen Pressure Relief Valve (PRV)
Working Pressure Class	35 MPa and 70 MPa hydrogen fuel-system components; final range as per component rating
Machine Pressure Range	0 to 100 MPa (0 to 1000 bar) configurable; higher range available on request
Test Medium – Standard	Nitrogen or helium for safe accelerated cycling and functional verification
Test Medium – Optional	Hydrogen or forming gas mixture, with purge, ventilation, gas detection and ESD
Cycle Count	Programmable from 1 to 100,000 cycles or as per applicable test procedure
Pressure Accuracy	±0.25% F.S. or better
Temperature Range	Ambient 5°C to 45°C; optional climatic chamber −40°C to +85°C
Control System	PLC + 15″ HMI / SCADA with recipe management and automatic report generation
Data Acquisition	High-speed data logging for pressure-time profile, cycle count and actuation events
Report Format	PDF, Excel and CSV with pressure-time graphs and cycle summary
Utilities	415 VAC, 3 Phase, 50 Hz; instrument air 6–8 bar; nitrogen purge; ventilation connection
Safety	Interlocked chamber, relief protection, E-stop, auto-depressurisation, gas detection, safe vent

Applications

Where it applies.

01Hydrogen pressure relief valve type approval testing

02PRV qualification to ISO 12619 Part 10

03HFCV component endurance validation labs

04Regulatory compliance for UN ECE R134 and AIS-157

05ICAT hydrogen component test facilities

06Automotive tier-1 and OEM qualification programmes

07Research and development endurance studies

08Post-repair PRV functional verification

09Production batch validation and quality assurance

In Depth

The complete technical read.

Fig · 03 PLC control cabinet — wiring, I/O modules and signal tower

Automated Test Sequence

The machine executes a fully automated test cycle: load the PRV into the approved fixture and connect inlet and outlet ports; close the interlocked chamber and perform nitrogen purge/leak-precheck; pressurize the inlet side according to the programmed ramp rate; detect PRV opening event; vent through the safe exhaust header and monitor reseating; repeat automatically until the programmed cycle count is completed; perform final functional and leakage check; generate the test report.

Machine Construction and Fixture Design

Blast-resistant guarded test enclosure with door interlock and internal drain/vent provision
PRV-specific inlet and outlet adapters in SS316L / hydrogen-compatible materials with quick-change fixture plate
Cone-and-thread or suitable high-pressure gas fittings selected according to pressure rating
PRV outlet connected to safe vent header with silencer / flame arrestor / exhaust stack as per safety philosophy
Independent system relief valve / rupture disc to protect test manifold and piping
Hydrogen detector integration for enclosure and exhaust area in hydrogen service configuration

Safety Design Notes

Hydrogen testing is performed only in the approved configuration with purge, ventilation, gas detection and ESD logic enabled. All pressurised components, valves, tubing and adapters are rated above the maximum test pressure with suitable safety margin. The PRV outlet is never vented into the cabinet; it is routed to a controlled and safe discharge path. The system inhibits pressurisation when the chamber door is open or any safety interlock is unhealthy.

Scope of Supply

Mechanical package (machine frame/cabinet, test chamber, PRV fixture, HP manifold, vent header interface); Pressure system (gas booster/pressure control module, isolation valves, check valves, relief devices, rated tubing); Instrumentation (pressure transducers, gauges, temperature sensor, flow/event detection sensor, gas detector interface); Control system (PLC, safety relay/safety PLC, HMI, DAQ, report generation software, alarm tower); Utilities interface; Documentation (GA drawing, P&ID, electrical drawings, I/O list, operation manual, calibration certificates, FAT/SAT protocols); Operator training.

FAQ

Common questions.

Q01 What does the Accelerated Life Test Bench test?

It tests hydrogen Pressure Relief Valves (PRV) by subjecting them to repeated pressure cycles and actuation events to verify that the valve continues to open, relieve, reseat and remain functional after the programmed endurance cycles.

Q02 Which standards does the bench comply with?

The bench is aligned with ISO 12619 Part 10, UN ECE R134 and AIS-157. Final pressure values, cycle counts, temperature conditions and acceptance criteria are configured in the machine recipe according to the applicable standard.

Q03 What is the maximum pressure capability?

The standard machine pressure range is 0 to 100 MPa (0 to 1000 bar), configurable. Higher ranges are available on request to accommodate future component working pressure requirements.

Q04 Can the machine test with hydrogen gas?

Yes. Hydrogen service is an optional configuration requiring purge, ventilation, gas detection and ESD logic. The standard configuration uses nitrogen or helium for safe accelerated cycling.

Q05 How many cycles can be programmed?

Cycle count is programmable from 1 to 100,000 cycles or as defined by the applicable standard procedure. Batch, part and serial number traceability is maintained throughout.

Q06 What safety features are included?

Safety features include an interlocked blast-resistant chamber, pressure relief protection, E-stop chain, auto-depressurisation, gas detection interface, nitrogen purge, safe vent line and alarm tower.

Q07 What does the test report contain?

The automatic test report includes pressure-time graph, cycle count, opening event log, reseat status, leakage and functional check result, operator ID, calibration references and pass/fail conclusion in PDF, Excel and CSV formats.

Q08 Who manufactures the Accelerated Life Test Bench?

The bench is designed and manufactured by Neometrix Engineering Pvt Ltd, a precision test equipment manufacturer based in Noida, India, serving hydrogen, defence, aerospace and automotive sectors.

Ready to configure your system?

Discuss your test requirements, component scope, pressure range, standard alignment and delivery schedule with our engineering team.

Request Proposal All Products

Call us +91-7777-876-876

PRV life cycling. Standards-aligned.

Accelerated endurance. Traceable results.

Engineering highlights.

Blast-Resistant Test Chamber

Programmable Pressure Control

Automatic Opening Detection

High-Speed Data Acquisition

Integrated Safety Logic

Automatic Report Generation

Product views.

Technical parameters.

Where it applies.

The complete technical read.

Automated Test Sequence

Machine Construction and Fixture Design

Safety Design Notes

Scope of Supply

Common questions.

Ready to configure your system?

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