H2 Leak Testing Machine / Model H2-LTM-1050 / 0.5–1050 bar · 100% H2 / Forming Gas · ISO 12619 / Noida · India 2026 · Product Page

H2 Leak Testing Machine

Leak tight. Every component.

Model H2-LTM-1050 — fully automated, safety-interlocked leakage qualification system for hydrogen fuel-system components. 0.5 to 1050 bar gas test capability with 100% dry hydrogen or 5% H2/N2 forming gas. Automatic pass/fail, PDF reports and calibrated data logging to ISO 12619 Parts 2–16, UN ECE R134 and AIS-157.

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H2 Leak Testing Machine — H2-LTM-1050 — Neometrix

Fig · 01H2-LTM-1050 — automated hydrogen component leak testing machine

Max Gas Pressure

1050bar

Leak Limit

<10Ncm³/h H2

DUT Ports

9+per station

Temp Range

−40to +120 °C

Accuracy

±0.25% FS

Overview

Precision leak detection. All conditions.

Dedicated leak testing machine for compressed gaseous hydrogen (CGH2) and hydrogen blend fuel-system components. Validates leakage performance under low, ambient and high-temperature conditions. Supports both 100% dry hydrogen and 5% hydrogen in nitrogen forming gas. Provides automated pressure charging, temperature soak coordination, stabilisation, leakage measurement, pass/fail decision and report generation.

Fig · 02 Test enclosure interior — multi-port DUT adapters and flow measurement module

External, internal, seat and temperature-conditioned leakage — in one automated system.

Six leakage test methods in a single platform: mass flow leakage test, pressure decay test, bubble/immersion observation, internal/seat leakage check, external leakage validation and temperature-conditioned leakage verification.

Component coverage: Pressure regulators, check valves, manual cylinder valves, automatic valves, gas injectors, pressure indicators, PRVs, PRD/TPRD, excess flow valves, gas-tight housings/vent hoses, rigid fuel lines, flexible fuel lines, filters and fittings.

Maximum gas test pressure: 1050 bar / 105 MPa (1.5 × 700 bar NWP basis). Low pressure range: 0.5 to 20 bar for low pressure component/enclosure checks.

Temperature soak: Minimum 30 minutes after temperature equilibrium, or as per component-specific test standard. Temperature accuracy: ±3°C at gas outlet after stabilisation.

Key Features

Engineering highlights.

Feature · 01

Mass Flow Leak Measurement

Direct leakage quantification at stabilised pressure. Minimum resolution 0.1 Ncm³/h or better for near-limit leakage decisions. Measurement range 0 to 50 Ncm³/h recommended.

0.1 Ncm³/h Resolution · Mass Flow · Calibrated

Feature · 02

Multi-Port DUT Fixture System

Minimum 9 DUT ports per station with configurable independent isolation valves. Changeable fixtures, high-pressure adapters, tagged ports and leak-tight clamping. Interchangeable fixtures finalized per approved DUT interface drawings.

9+ Ports · Independent Valves · Changeable

Feature · 03

Temperature Conditioning Interface

Interface for climatic chamber or heating/cooling enclosure covering −40°C, ambient and up to +120°C. Temperature soak with stable pressure and temperature before leakage measurement.

−40 to +120 °C · Soak · Stable

Feature · 04

Hydrogen Safety System

H2 gas detector, N2 purge sequence, ESD, pressure relief, interlocked test enclosure, safe vent and exhaust line. ATEX/IECEx compliant devices in hazardous area or gas-safe segregation by enclosure design.

H2 Detector · N2 Purge · ATEX/IECEx

Feature · 05

Automatic Pass/Fail Logic

Automatic comparison of measured leakage with test limit; operator override disabled for final result. Recipe-based acceptance per ISO part, component type, pressure, temperature and leakage limit.

Auto Pass/Fail · Recipe-Based · ISO-Aligned

Feature · 06

Traceable Reporting

PDF, Excel and CSV report with pressure, temperature, flow, pass/fail status and traceability. Operator ID, DUT serial number, calibration ID, component type and test date/time recorded per test.

PDF · Excel · CSV · NABL Traceable

Gallery

Product views.

Fig · Gallery3-view photo documentation — H2 Leak Testing Machine

Specifications

Technical parameters.

Machine Model	H2-LTM-1050 Hydrogen Component Leak Testing Machine
Primary Test Medium	100% dry hydrogen (H2)
Alternate Test Medium	5% H2 / 95% N2 forming gas; nitrogen and helium provision optional
Maximum Gas Test Pressure	1050 bar / 105 MPa (1.5 × 700 bar NWP basis)
Low Pressure Range	0.5 bar to 20 bar
High Pressure Range	0 to 1050 bar with regulated gas charging and controlled venting
Pressure Ramp Rate	Programmable; maximum 14 bar/s unless stricter component-specific ramp is selected
Temperature Range	−40°C ±3°C, 20°C ±5°C, +85°C or +120°C ±3°C
Leak Measurement Duration	Minimum 3 minutes at stabilised pressure; configurable by test recipe
External Leakage Limit	<10 Ncm³/h H2 equivalent unless stricter limit is selected
Leak Measurement Range	0 to 50 Ncm³/h recommended
Minimum Resolution	0.1 Ncm³/h or better
Pressure Accuracy	±0.25% FS or better
Number of DUT Ports	Minimum 9 ports per station
Control System	PLC + 15″ industrial HMI + DAQ/SCADA
Report Output	Automatic PDF/Excel/CSV report with pressure, temperature, flow, pass/fail and traceability
Standards	ISO 12619 Parts 2–16, UN ECE R134, AIS-157

Applications

Where it applies.

01Hydrogen component leakage qualification per ISO 12619

02HFCV pressure regulator external and internal leakage testing

03Valve seat leakage and shut-off leakage verification

04PRD/TPRD bubble-observation leakage testing

05Fuel line external leakage from 5% to 150% service pressure

06Fitting and connection leakage verification

07Type approval and regulatory compliance testing

08ICAT hydrogen component test facility leakage station

09Research and development leakage characterisation

In Depth

The complete technical read.

Fig · 03 Gas control panel — H2 inlet, nitrogen purge, regulators and solenoid valves

Core Test Sequence

Load DUT and connect test adapters; confirm fixture lock, port mapping and valve status. Purge test volume with nitrogen to remove air/oxygen before hydrogen or forming gas charging. Charge gas to selected pressure under PLC-controlled pressure ramp and safety interlock monitoring. Temperature soak and stabilisation under cold/ambient/hot conditioning. Leak measurement by mass flow, pressure decay or bubble observation as selected by recipe. Automatic pass/fail decision compared with acceptance limit. Depressurise safely and purge. Generate auto report with graph, raw data and calibration traceability.

Wetted Material and Construction

All gas-wetted parts in SS316/SS316L or hydrogen-compatible material suitable for maximum test pressure. High-pressure coned-and-threaded or certified compression fittings per pressure class and DUT connection design. DUT adapters interchangeable, tagged and pressure-rated above maximum test pressure. Sealing materials compatible with hydrogen, low temperature and high temperature test conditions.

FAT/SAT Verification Points

Visual and dimensional inspection against approved drawings
Pressure hold check with dummy volume at FAT pressure
Leak measurement verification using calibrated leak/reference flow source
Temperature interface check (cold, ambient, hot) where chamber is in scope
Safety interlock check: door interlock, gas detector simulation, ESD, purge, venting
Report generation check with serial number, parameters, graph and pass/fail result
NABL/ISO 17025 traceable calibration certificates for all instruments

FAQ

Common questions.

Q01 What is the maximum gas test pressure?

1050 bar / 105 MPa, based on 1.5 × 700 bar NWP. This covers the hydrogen leak test requirements for 700 bar class HFCV components where 1.5 × NWP leakage tests are required.

Q02 What leakage limit does the machine detect?

The standard external leakage acceptance is <10 Ncm³/h H2 equivalent. Internal/seat leakage for valves is bubble-free or <2 Ncm³/h as per test requirement. Minimum resolution is 0.1 Ncm³/h.

Q03 Which components can be tested?

All hydrogen fuel-system components per ISO 12619 Parts 3–16: pressure regulators, check valves, manual cylinder valves, automatic valves, gas injectors, pressure indicators, PRVs, PRD/TPRD, EFVs, gas-tight housings, rigid and flexible fuel lines, filters and fittings.

Q04 Can the machine test at low temperatures?

Yes. Temperature conditioning interface supports −40°C ±3°C. Minimum 30-minute temperature soak after equilibrium before leakage measurement.

Q05 How many DUT ports are available?

Minimum 9 DUT ports per station, each with configurable independent isolation valves. DUT adapters are interchangeable and tagged per port.

Q06 Who manufactures the H2 Leak Testing Machine?

Neometrix Engineering Pvt Ltd, Noida, India.

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

Leak tight. Every component.

Precision leak detection. All conditions.

Engineering highlights.

Mass Flow Leak Measurement

Multi-Port DUT Fixture System

Temperature Conditioning Interface

Hydrogen Safety System

Automatic Pass/Fail Logic

Traceable Reporting

Product views.

Technical parameters.

Where it applies.

The complete technical read.

Core Test Sequence

Wetted Material and Construction

FAT/SAT Verification Points

Common questions.

Ready to configure your system?

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