Gas Distribution System / <5 ppb Moisture · <1 ppb O2 / ATEX/CE Gas Detection / India

GASDS · AUTO-CHANGEOVER GAS PANEL

Gas Distribution System, purified to <5 ppb moisture.

A fully engineered assembly that integrates automatic dual-cylinder changeover manifolds, multi-stage purification modules, and point-of-use SS 316L regulators to deliver Zero Air, N2, H2, He, and CH4 from high-pressure cylinders to laboratory panels — with an ATEX/CE-certified multi-channel gas detection system monitoring every line for leaks and unsafe conditions.

Request proposal System architecture

Gas distribution system - industrial and defence multi-point gas supply manifold and pressure regulation distribution network by Neometrix

Fig · 01 Auto-changeover manifold bank · purification modules · POU regulator panel

Designed and manufactured to:

ATEX CE IECEx

Inlet Pressure

230bar

Moisture

<5ppb

Hydrocarbons

<15ppb

Residual O2

<1ppb

POU Regulators

100psi

Overview

Five gases, one distribution panel.

The Neometrix Gas Distribution System is a fully engineered assembly that integrates automatic dual-cylinder changeover manifolds, multi-stage purification modules, and point-of-use SS 316L regulators to deliver ultra-pure gases to laboratory instruments without interruption.

Gas distribution system product view - centralised gas supply header and point-of-use pressure regulation panel for industrial and defence facilities by Neometrix

Fig · 02 Multi-outlet gas manifold, valves and pressure gauges on the distribution header

The system integrates automatic dual-cylinder changeover manifolds, multi-stage purification modules (moisture <5 ppb, hydrocarbons <15 ppb, oxygen <1 ppb), and point-of-use SS 316L regulators (0–100 psi) to deliver Zero Air, N2, H2, He, and CH4 from high-pressure cylinders to laboratory panels. Electropolished SS 316/316L tubing and compression fittings form the distribution network, while an ATEX/CE-certified multi-channel gas detection panel with SS 316 transmitter heads provides 4–20 mA outputs, relay contacts, and Modbus communication.

All components are mounted in powder-coated MS enclosures configured per the full-layout drawings, with flexible hoses, fittings, and enclosures installed and commissioned to work-order specification.

One manifold bank. Five gas lines. Continuous, contamination-free supply.

Designed for analytical instrumentation, catalyst R&D, process simulation, and safety-critical inerting environments, the system is modular and scalable, fitting neatly into standard laboratory panel layouts with straightforward expansion.

Architecture

Six subsystems, one gas panel.

Every subsystem of the Gas Distribution System works together to deliver uninterrupted, ultra-pure gas supply with integrated safety monitoring throughout.

Sub · 01

Auto Changeover Manifold

A pilot-operated valve senses when the primary cylinder bank pressure falls to a preset point, triggering an uninterrupted switch to the reserve bank without manual intervention.

Sub · 02

Purification Modules

Cartridge-type traps in SS 304 panels lower moisture to <5 ppb, remove hydrocarbons to <15 ppb, and scavenge residual O2 to <1 ppb; cartridges snap in/out via quick-release clamps.

Sub · 03

Point-of-Use Regulation

Compact SS 316L regulators at instrument inlets maintain stable 0–100 psi pressures via diaphragm-sensed design, integrated filters, and isolation valves for maintenance.

Sub · 04

Distribution Network

Electropolished SS tubing ensures smooth, inert flow with minimal dead volume; compression fittings and flexible braided hoses accommodate routing and vibration isolation.

Sub · 05

Detection & Control

A 16-channel ATEX/CE panel aggregates analog (4–20 mA) and digital (Modbus RTU) signals from SS 316 sensor heads, with programmable alarms and relay outputs for automated shutdown.

Sub · 06

Panel Assembly

Powder-coated MS enclosures built to the full-layout drawing, with standardized frame sizes, knock-outs, and mounting rails for ergonomic visibility and access.

Key Features

Built for uninterrupted supply.

The features that make this gas distribution system suitable for analytical, R&D and safety-critical laboratory environments.

F · 01

Auto-Changeover Manifold

Switches to the standby cylinder bank on pressure drop, ensuring uninterrupted lab gas supply without manual intervention.

Zero Downtime

F · 02

Multi-Stage Purification

Sequential purification trains remove moisture (<5 ppb), hydrocarbons (<15 ppb), and residual O2 (<1 ppb) per line.

Sub-ppb Purity

F · 03

Point-of-Use Regulation

SS 316L point-of-use regulators deliver 0–100 psi directly at instrument inlets with integrated shut-off valves.

SS 316L

F · 04

Electropolished Distribution

SS 316/316L tubing (¼″ and ⅝″) with compression fittings; all connections are helium leak-tested.

Helium Leak Tested

F · 05

ATEX/CE Gas Detection

Multi-channel detector with SS 316 heads provides 4–20 mA, Modbus RS-485, and visual/audible safety alarms.

ATEX · CE · IECEx

F · 06

Modular Panel Assembly

Powder-coated MS enclosures with dual-scale gauges, relief valves, and isolation valves install in standard lab panels.

Scalable Assembly

Image Gallery

The panel, in detail.

Component detail from a delivered Gas Distribution System — manifold valves, pressure gauges, and regulator assemblies.

Gas distribution system component detail - multi-outlet gas manifold valve and pressure gauge assembly by Neometrix

Fig · 03–05 Component detail · distribution manifold, POU regulator panel, and gas detection transmitters

Downloads

General, layout & design drawings.

General catalog, panel layout, and GA design drawings for the Gas Distribution System, available as PDF for procurement and technical review.

Specifications

Full technical parameters.

Key system parameters for the standard Neometrix Gas Distribution System configuration.

Inlet Pressure	Up to 230 bar (3,335 psi)
Outlet Pressure Ranges	0–14 bar (primary panels); 0–100 psi (POU regulators)
Purification Performance	Moisture <5 ppb; Total Hydrocarbons <15 ppb; O2 <1 ppb
Manifold Material	SS 316L, electropolished; pilot-operated valves; residual pressure <1 bar
Tubing & Fittings	SS 316/316L electropolished tubing (¼″×0.035″, ⅝″×0.028″); compression fittings; helium-leak tested
Regulator Material	SS 316L body and poppet; Hastelloy diaphragm; PCTFE/EPDM seals; inlet filter 10 µm mesh
Detection Panel	16 channels; 4–20 mA inputs/outputs; RS-485 Modbus; ATEX/IECEx; relay contacts (NO/NC)
Sensor Heads	SS 316 housing; cast aluminum LM-6 enclosure; IP66; Gas Groups IIA/IIB
Flexible Hoses	SS core, braided SS sheath; 1 m length; 200 bar rating
Panel Enclosures	Powder-coated MS; standard 600 × 400 mm frames; adjustable mounting rails

Applications

Where it supplies gas.

From analytical instrumentation to safety-critical environments, this gas distribution system serves research and industrial laboratories that demand sub-ppb purity.

A · 01Analytical instrumentation: supplies carrier and calibration gases to GC, GC-MS, and FID detectors, where ultra-pure zero air (<0.1 ppm THC) prevents baseline drift and enhances sensitivity.

A · 02Catalyst R&D: feeds ultra-clean reactant gases for kinetic studies in microreactors or fixed-bed setups, where trace impurities can poison catalysts and skew activity measurements.

A · 03Process simulation: supports pilot-scale reactors requiring precise ratios of H2, N2, or CH4 under controlled pressures for scale-up validation in chemical or petrochemical research.

A · 04Safety-critical environments: in inerting or blanketing applications (gloveboxes, Schlenk lines), integrated detection and automatic shutdown protect personnel and samples from asphyxiation or explosion risks.

In Depth

The complete technical read.

Engineering narrative for design engineers, procurement teams, and lab managers who want the full picture before committing.

Introduction

The Gas Distribution System is a turnkey solution designed to supply ultra-pure gases — Zero Air (ZA), Nitrogen (N2), Hydrogen (H2), Helium (He), and Methane (CH4) — from high-pressure cylinders to laboratory instruments with precision, safety, and uninterrupted operation. It integrates automatic cylinder changeover, multi-stage purification, point-of-use regulation, stainless-steel distribution, and real-time gas detection into a modular, scalable assembly that fits neatly into standard panel layouts.

Auto changeover manifold

Automatic switching: a pilot-operated valve senses when the primary cylinder bank pressure falls below a preset threshold, triggering an uninterrupted switch to the standby bank.
Zero manual intervention: maximizes gas usage and eliminates the need for operators to monitor cylinder pressure continuously.
Bank configuration: five dual-cylinder changeover banks serve the ZA, N2, H2, He and CH4 lines with an additional spare purification module.

Multi-stage purification trains

Each gas stream flows through cartridge-type traps housed in SS 304 panels with quick-release clamps for rapid element changes:

Desiccant stage: lowers moisture to <5 ppb.
Carbon bed: removes hydrocarbons to <15 ppb.
Oxygen scavenger: ensures residual O2 <1 ppb.

Point-of-use regulation

Ultra-miniature, single-stage SS 316L regulators positioned at instrument inlets maintain stable 0–100 psi pressures. Their diaphragm-sensed design and integrated 10 µm mesh filters deliver contaminant-free gas with optimized flow characteristics, and integrated shut-off valves allow safe line isolation for maintenance.

Distribution network

Electropolished tubing: leak-tight SS 316/316L tubing (¼″×0.035″, ⅝″×0.028″) ensures smooth, inert flow with minimal dead volume.
Compression fittings: tees, unions, and reducers provide versatile routing across the full-layout drawing.
Flexible braided hoses: custom-length pigtails and SS-braided hoses accommodate movement and vibration isolation.
Leak testing: all connections undergo helium leak testing to <1×10−9 mbar·L/s.

Gas detection & safety

An ATEX/CE-certified, 16-channel multi-channel detector panel monitors O2, combustibles, and toxic gases via SS 316 transmitter heads housed in cast-aluminum LM-6, IP66-rated enclosures rated for Gas Groups IIA/IIB. The panel provides 4–20 mA outputs, programmable relays, and RS-485 Modbus communications with visual/audible alarms, enabling automated shutdown upon hazardous conditions.

Panel assembly

Enclosures are powder-coated MS, built per the full-layout drawing with standardized 600 × 400 mm frame sizes, knock-outs, and adjustable mounting rails. Regulators, dual-scale gauges, relief valves, and isolation valves are ergonomically arranged for visibility and maintenance access.

Bill of materials (excerpt)

Item	Quantity
Auto Changeover Dual-Cylinder Manifold	5 banks
Gas Purification Modules	6 (ZA, N2, H2, He, CH4, spare)
Point-of-Use Regulators	ZA: 17; N2: 18; H2: 11; He: 10; CH4: 4
SS Tubing (¼″×0.035″)	550 m
SS Tubing (⅝″×0.028″)	25 m
Compression Fittings	>300
Gas Detection Panel & Transmitters	1 panel; 5 head units
Flexible Braided Hoses	10 (1 m each)
Control Panel Enclosures	17 secondary + junction boxes

Technical specifications

Parameter	Specification
Inlet Pressure	Up to 230 bar (3,335 psi)
Outlet Pressure Ranges	0–14 bar (primary panels); 0–100 psi (POU regulators)
Purification Performance	Moisture <5 ppb; Total Hydrocarbons <15 ppb; O2 <1 ppb
Manifold Material	SS 316L, electropolished; pilot-operated valves; residual pressure <1 bar
Tubing & Fittings	SS 316/316L electropolished tubing; compression fittings; helium-leak tested
Regulator Material	SS 316L body and poppet; Hastelloy diaphragm; PCTFE/EPDM seals
Detection Panel	16 channels; 4–20 mA; RS-485 Modbus; ATEX/IECEx
Sensor Heads	SS 316 housing; IP66; Gas Groups IIA/IIB
Flexible Hoses	SS core, braided SS sheath; 1 m length; 200 bar rating
Panel Enclosures	Powder-coated MS; 600 × 400 mm frames; adjustable mounting rails

Conclusion

The system delivers a highly reliable, safe, and modular platform for distributing multiple ultra-pure gases in demanding R&D and analytical environments. Its automated changeover, advanced purification, localized regulation, and integrated safety controls ensure continuous, contamination-free supply tailored to evolving laboratory needs.

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is the Gas Distribution System?

The Gas Distribution System is a precision-engineered assembly designed and manufactured by Neometrix Engineering Pvt Ltd, India, that supplies ultra-pure Zero Air, N2, H2, He and CH4 from high-pressure cylinders to laboratory instruments with automatic cylinder changeover, multi-stage purification and integrated gas detection.

Q · 02 Who manufactures the Gas Distribution System?

The Gas Distribution System is designed and manufactured by Neometrix Engineering Pvt Ltd, a leading laboratory and industrial gas system manufacturer based in India.

Q · 03 What level of gas purity does the system achieve?

Sequential purification trains reduce moisture to below 5 ppb, total hydrocarbons to below 15 ppb, and residual oxygen to below 1 ppb, per gas line, meeting the demands of GC, GC-MS and FID analytical instrumentation.

Q · 04 What industries use the Gas Distribution System?

The Gas Distribution System is used across analytical instrumentation, catalyst R&D, process simulation, and safety-critical inerting/blanketing environments in research laboratories and industrial facilities.

Q · 05 Is the Gas Distribution System customizable?

Yes, Neometrix offers customized versions of the Gas Distribution System — cylinder-bank count, gas-line combinations, regulator ranges and panel-enclosure layouts — tailored to specific client requirements.

Q · 06 Does the Gas Distribution System comply with relevant standards?

Yes, the multi-channel gas detection panel is ATEX/CE and IECEx certified, and all tubing connections are helium leak-tested; the system is built to customer-specified IS and ISO requirements.

Q · 07 What are the key features of the Gas Distribution System?

Key features include auto-changeover dual-cylinder manifolds, multi-stage purification, SS 316L point-of-use regulators, electropolished SS tubing, an ATEX/CE gas detection panel with 4–20 mA and Modbus outputs, and powder-coated MS panel enclosures.

Q · 08 Can the gas detection panel be integrated with plant monitoring systems?

Yes, the 16-channel detection panel provides 4–20 mA analog outputs, programmable relay contacts and RS-485 Modbus communication for integration with SCADA and building/plant monitoring systems.

Q · 09 What after-sales support does Neometrix provide?

Neometrix provides comprehensive after-sales support including installation, commissioning, operator training, preventive maintenance, and on-site service for the Gas Distribution System.

Q · 10 How can I get a quotation for the Gas Distribution System?

You can request a quotation for the Gas Distribution System by contacting Neometrix Engineering Pvt Ltd through https://neometrixgroup.com/products/gas-distribution-system or by phone at +91-7777-876-876.

Get a proposal

Tell us your gas-line and
purity requirements.

We size the manifold banks, purification trains, regulators and detection panel, and walk through the customization options with your lab team before you commit.

Request proposal +91 7777 876 876

Gas Distribution System, purified to <5 ppb moisture.

Five gases, one distribution panel.