Pre-Cooled Hydrogen Exposure Test Machine / Model H2-PCET-1000 / ISO 12619 Parts 3, 4, 5, 6 · UN ECE R134 · AIS-157 / Noida · India 2026 · Product Page

Pre-Cooled Hydrogen Exposure Test Machine

Minus 40°C hydrogen. Controlled exposure.

Model H2-PCET-1000 — automated test system to expose hydrogen fuel-system valve components to pre-cooled hydrogen under controlled pressure and temperature conditions. Verifies that the component remains safe, leak-tight, functional and free from low-temperature hydrogen-related degradation after exposure. Aligned with ISO 12619 Parts 3, 4, 5, 6, UN ECE R134 and AIS-157.

Request proposal Specifications

Pre-Cooled Hydrogen Exposure Test Machine — cryogenic hydrogen valve testing — Neometrix

Fig · 01H2-PCET-1000 — pre-cooled hydrogen exposure test machine for hydrogen fuel system valves

Pre-Cool Temp

−40°C at DUT inlet

Max Pressure

700bar std.

Test Gas

H2/ H2-blend

Temp Stability

±3°C at outlet

Control

PLC+ HMI + DAQ

Overview

Cold hydrogen. No degradation.

The Pre-Cooled Hydrogen Exposure Test Machine exposes hydrogen fuel-system components to pre-cooled hydrogen under the fueling conditions defined by AIS-157 and UN ECE R134. The machine verifies that the component tolerates low-temperature hydrogen exposure during fueling without leakage, sticking, embrittlement, cracking, actuation failure or functional deterioration.

Pre Cooled Hydrogen Exposure Test Machine — detail view 2

Fig · 02 Cryogenic insulated HP gas delivery line and LN2 heat exchanger cooling module

Pre-cooled hydrogen to −40°C at DUT inlet — simulating real-world fast-fill fueling conditions.

The machine is an automated gas exposure system, not a burst pressure machine. Pressure, gas temperature, chamber temperature, purge sequence and acceptance limits are selected through standard-based test recipes. Hydrogen supply and pressure regulation/booster package provides controlled filling pressure while the pre-cooling module using LN2 heat exchanger or mechanical refrigeration achieves the required pre-cooled temperature.

Components covered: Check valve (ISO 12619 Part 3), manual valve (ISO 12619 Part 4), manual cylinder valve (ISO 12619 Part 5) and automatic valve (ISO 12619 Part 6). Hydrostatic strength and burst testing are performed on a separate HST/Burst Test Machine.

Acceptance criteria: No leakage beyond permissible hydrogen-equivalent limit after exposure. No embrittlement, cracking, deformation, sticking, actuation failure or functional deterioration. Component remains operable after pre-cooled hydrogen exposure. Pressure and temperature profiles remain within programmed recipe limits.

Typical test pressure: 0.2 to 70 MPa (2 to 700 bar) standard; up to 100 MPa (1000 bar) optional. Gas flow range: typical 0.5 to 100 NLPM; higher flow package up to 300 NLPM optional.

Key Features

Engineering highlights.

Feature · 01

LN2-Based Pre-Cooling System

LN2 heat exchanger or mechanical refrigeration pre-cooler brings hydrogen gas temperature down to −40°C at DUT inlet. Temperature stability ±3°C after stabilisation. Insulated HP gas delivery line maintains low-temperature delivery.

LN2 Pre-Cooler · −40°C · ±3°C Stability

Feature · 02

Interlocked Test Chamber and Purge

Guarded test enclosure with door interlock and emergency stop. Nitrogen/helium purge system for inerting before and after hydrogen exposure. Automatic purge before hydrogen admission and after test completion.

Purge · Door Interlock · N2/He Inerting

Feature · 03

Functional Actuation Interface

Pneumatic/solenoid/servo actuation interface for automatic valves and test sequencing. Supports valve operation verification during and after pre-cooled hydrogen exposure as required by the component standard.

Solenoid · Pneumatic · Servo Actuation

Feature · 04

Multi-Sensor Instrumentation

PT100/thermocouple sensors at gas outlet, DUT inlet, DUT outlet and chamber zone. Hydrogen-compatible pressure transducers ±0.25% FS. Mass flow meter for controlled filling and purge monitoring.

PT100 · ±0.25% FS · Mass Flow

Feature · 05

Hydrogen Safety Architecture

ATEX/IECEx compliant electricals. Double-block-and-bleed isolation on high-pressure hydrogen lines. Pressure relief valve/rupture disc for overpressure. Gas detectors with ESD action. Safe-area panel with Ex barriers per area classification.

ATEX/IECEx · DBB Valves · Relief · ESD

Feature · 06

Automatic Reporting

Automatic PDF/Excel/CSV report with temperature profile, pressure profile, exposure time and pass/fail result. Operator ID, recipe ID, component serial number, sensor calibration reference and report number for full traceability.

PDF · Excel · Temp Profile · Traceable

Gallery

Product views.

Pre-Cooled Hydrogen Exposure Test Machine — view 1

Pre-Cooled Hydrogen Exposure Test Machine — view 2

Pre-Cooled Hydrogen Exposure Test Machine — view 3

Fig · Gallery3-view photo documentation — Pre-Cooled Hydrogen Exposure Test Machine

Specifications

Technical parameters.

Catalogue Model	H2-PCET-1000 / Custom pressure variant
Applicable Standards	ISO 12619 Parts 3, 4, 5, 6; UN ECE R134; AIS-157
Applicable Components	Check valve, manual valve, manual cylinder valve, automatic valve
Test Medium	100% hydrogen (H2) or hydrogen-inert gas blend; nitrogen/helium for purging and inerting
Hydrogen Blend Capability	Minimum 5% H2 balance N2/He where blend testing is required
Hydrogen Purity	Recommended 99.999% or as per test recipe
Test Pressure Range	0.2 to 70 MPa (2 to 700 bar) standard; up to 100 MPa (1000 bar) optional
Pre-Cooled Gas Temperature	Down to −40°C at DUT inlet, controlled and recorded
Temperature Stability	Typical ±3°C at gas outlet after stabilisation
Environmental Chamber	−40°C to +85°C optional, for DUT conditioning and exposure
Gas Flow Range	Typical 0.5 to 100 NLPM; up to 300 NLPM optional
Leak Verification	Hydrogen-equivalent leakage verification; optional helium leak check
Control System	PLC + 15″ HMI + safety interlocks + recipe management
Report Output	Automatic PDF/Excel/CSV with temperature-pressure graph and pass/fail result
Safety	ATEX/IECEx, DBB isolation, pressure relief, gas detection, purge, ESD, ventilation

Applications

Where it applies.

01Check valve pre-cooled H2 exposure per ISO 12619 Part 3

02Manual valve low-temperature hydrogen exposure testing

03Manual cylinder valve pre-cooled filling simulation

04Automatic valve actuation verification under cold H2

05AIS-157 / UN ECE R134 fueling protocol compliance testing

06HFCV valve cold start and fast-fill qualification

07Hydrogen embrittlement and sticking resistance validation

08ICAT and OEM type approval test programmes

09R&D hydrogen exposure characterisation studies

In Depth

The complete technical read.

Fig · 03 Test chamber with DUT valve fixture, H2 detector panel and nitrogen purge valves

Detailed Operating Sequence

Load the component in the test fixture and connect hydrogen-rated inlet/outlet adapters. Close the guarded test chamber and verify door interlock, emergency stop and gas detector healthy status. Purge the internal volume, lines and DUT with nitrogen/helium per recipe. Start pre-cooling system and bring hydrogen gas temperature to the required set point, typically −40°C. Pressurize the component with pre-cooled hydrogen per AIS-157/UN ECE R134 fueling protocol or customer recipe. Maintain the exposure condition for the specified duration while recording pressure, temperature, flow and alarms. Perform functional actuation/valve operation where required by component type. Depressurize safely through vent system, purge with nitrogen and perform post-exposure leak/functional verification. Generate automatic test report.

Safety Features

ATEX/IECEx compliant electricals for hazardous area or safe-area panel with Ex barriers per area classification
PESO-compliant safety case consideration for hydrogen pressure system installation
Double-block-and-bleed isolation on high-pressure hydrogen lines
Pressure relief valve/rupture disc sized for maximum credible overpressure scenario
Automatic nitrogen purge before hydrogen admission and after test completion
Remote operation, CCTV provision and visual/audible alarms
Fail-safe shutdown on high gas concentration, door open, overpressure, overtemperature or loss of utilities

FAQ

Common questions.

Q01 What temperature is the hydrogen pre-cooled to?

Down to −40°C at the DUT inlet, controlled and recorded. Temperature stability is typically ±3°C at gas outlet after stabilisation.

Q02 Which valves can be tested?

Check valve (ISO 12619 Part 3), manual valve (Part 4), manual cylinder valve (Part 5) and automatic valve (Part 6). This is an exposure test machine; hydrostatic strength and burst testing are performed on a separate machine.

Q03 What is the maximum test pressure?

0.2 to 70 MPa (2 to 700 bar) standard; up to 100 MPa (1000 bar) optional. Final range confirmed per component working pressure and customer test procedure.

Q04 Can it test with 100% hydrogen?

Yes. The machine supports 100% hydrogen and hydrogen-inert gas blends with minimum 5% H2/N2 or He. Full ATEX/IECEx safety provisions and DBB isolation are standard.

Q05 What does the test verify?

No leakage beyond permissible limit after exposure. No embrittlement, cracking, deformation, sticking or actuation failure. Component remains operable. Functional actuation (for automatic valves) verified during and after exposure.

Q06 Who manufactures this 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

Minus 40°C hydrogen. Controlled exposure.

Cold hydrogen. No degradation.

Engineering highlights.

LN2-Based Pre-Cooling System

Interlocked Test Chamber and Purge

Functional Actuation Interface

Multi-Sensor Instrumentation

Hydrogen Safety Architecture

Automatic Reporting

Product views.

Technical parameters.

Where it applies.

The complete technical read.

Detailed Operating Sequence

Safety Features

Common questions.

Ready to configure your system?

Similar Products

Pressure Impulse Test Bench | Hydrogen Check Valve & EFV Fatigue Testing | ISO 12619

Pressure Impulse Test Bench | Hydrogen Check Valve & EFV Fatigue Testing | ISO 12619

Stress Corrosion Cracking Test Machine | H2-SCC-CHAMBER-240H | Ammonia Exposure

Stress Corrosion Cracking Test Machine | H2-SCC-CHAMBER-240H | Ammonia Exposure

Green Hydrogen Generation Plant - Electrolyser & Balance of Plant

Green Hydrogen Generation Plant - Electrolyser & Balance of Plant

Electrolyser Test Station - Stack Characterisation & QC

Electrolyser Test Station - Stack Characterisation & QC

Hydrogen Power-to-Power (P2P) System

Hydrogen Power-to-Power (P2P) System

Automatic Volumetric Expansion Test System

Automatic Volumetric Expansion Test System

Burst Chamber for Hydrogen Cylinder Testing

Burst Chamber for Hydrogen Cylinder Testing

Accelerated Life Test Bench | Hydrogen PRV Endurance Testing | ISO 12619 Part 10

Accelerated Life Test Bench | Hydrogen PRV Endurance Testing | ISO 12619 Part 10

Continued Operation Test Machine | Hydrogen Fuel System Endurance Cycling | ISO 12619

Continued Operation Test Machine | Hydrogen Fuel System Endurance Cycling | ISO 12619

Dynamic High-Pressure Hydrogen Leak Test Rig | Hydrogen Cylinder & Component Leak Testing up to 1000 Bar

Dynamic High-Pressure Hydrogen Leak Test Rig | Hydrogen Cylinder & Component Leak Testing up to 1000 Bar

H2 Burst Test Machine | Hydrostatic & Burst Pressure Testing | 3500 bar | ISO 12619

H2 Burst Test Machine | Hydrostatic & Burst Pressure Testing | 3500 bar | ISO 12619

H2 Leak Testing Machine | Hydrogen Component Leakage Qualification | H2-LTM-1050

H2 Leak Testing Machine | Hydrogen Component Leakage Qualification | H2-LTM-1050

Hydrogen Component Test System - ISO 12619 · R134 · AIS 157

Hydrogen Component Test System - ISO 12619 · R134 · AIS 157

Hydrogen Embrittlement Test System - Sustained-Load (F519), SSRT & In-Situ HP-H2

Hydrogen Embrittlement Test System - Sustained-Load (F519), SSRT & In-Situ HP-H2

Hydrogen Fuel-System Component Test System - ISO 12619

Hydrogen Fuel-System Component Test System - ISO 12619

Hydrogen Pressure-Cycling Test Facility - Cylinder & Tank Life Testing (GTR-13 / ISO 19881 Pattern)

Hydrogen Pressure-Cycling Test Facility - Cylinder & Tank Life Testing (GTR-13 / ISO 19881 Pattern)

Hydrogen Refuelling Station - H35, 500 bar

Hydrogen Refuelling Station - H35, 500 bar

Hydrostatic Test Bench | Compressed Gas Cylinder Proof-Pressure & Leak Testing | IS 5844

Hydrostatic Test Bench | Compressed Gas Cylinder Proof-Pressure & Leak Testing | IS 5844

Share This Page