Gas Purging System / 200 bar · ≥99.999% N2 / PLC / HMI Automated / India

GASPS · N2 INERTING SYSTEM

Gas Purging System, rated to ≥99.999% nitrogen purity.

A turnkey, defense-qualified gas purging system supplying ultra-high-purity nitrogen to laser systems at LASTEC, DRDO. A four-cylinder, 200 bar gas manifold with dual-stage mechanical pressure reduction and precision 2 µm / 0.1 µm filtration delivers ≥99.999% dry, oil-free nitrogen with stable ±1 bar control, driven by a PLC/HMI panel with recipe-based purge profiles and data logging.

Request proposal System architecture

Gas purging system - PLC-driven nitrogen purging and inerting skid for defense laser optics by Neometrix

Fig · 01 4×80 L, 200 bar N2 cylinder manifold · dual-stage filtration · PLC/HMI control panel

Built to named component standards:

ANSI Class 2500 UL CSA GOST

N2 Purity

99.999%

Manifold Pressure

200bar

Cylinders

4×80L

Final Filtration

0.1µm

Pressure Control

±1bar

Overview

Ultra-high purity, recipe-driven.

Neometrix's Gas Purging System applies nitrogen gas purging technology in a turnkey, defense-qualified solution designed to supply ultra-high-purity nitrogen to laser systems at LASTEC, DRDO.

Gas purging system product view - portable inert gas supply and flow control unit by Neometrix

Fig · 02 Cylinder manifold, pressure reduction and filtration skid

It combines a four-cylinder, 200 bar gas manifold with dual-stage mechanical pressure reduction and precision filtration (2 µm primary and 0.1 µm secondary) to deliver ≥99.999% dry, oil-free nitrogen with stable ±1 bar control. A PLC-driven automatic control panel with touchscreen HMI enables recipe-based purge profiles, real-time monitoring via 4–20 mA pressure transmitters, data logging, and remote diagnostics.

Four cylinders. Two filtration stages. One recipe-driven purge cycle.

Multi-stage relief valves and dedicated vent lines ensure safe overpressure protection and system depressurization. Ideal for nitrogen gas purge cycles that inert optical paths, protect sensitive optics, and support automated leak-testing cycles, this modular system supports uninterrupted, multi-shift operation, meeting rigorous safety and traceability standards in critical research and production environments.

Architecture

Three modules, one purge skid.

The Gas Purging System integrates a manifold, a mechanical control panel, and a PLC-driven automatic control panel into a single skid for LASTEC/DRDO installation.

Sub · 01

Gas Manifold Module

Four × 80 L, 200 bar cylinders arranged for balanced draw-down and automatic change-over, minimizing downtime during cylinder swaps. Dedicated vent line allows safe depressurization and purging of residual gas without system disassembly.

Sub · 02

Mechanical Control Panel

Multi-stage pressure reduction using ANSI Class 2500 ball valves and precision flow regulators maintains outlet pressure within ±1 bar of setpoint. Primary (2 µm) and secondary (0.1 µm) SS316 filters remove particulates and trace moisture before gas enters the laser system.

Sub · 03

Automatic Control Panel

PLC-driven control with HMI touchscreen provides recipe management for purge profiles (ramp-up, dwell, ramp-down), data logging to USB or network, and remote diagnostics. Pressure transmitters (4–20 mA, 0–200 bar) and relief valves at 8 bar and 15 bar ensure overpressure protection and alarm generation.

Key Features

Built for multi-shift duty.

The features that make this purge system suitable for uninterrupted LASTEC/DRDO laser operations.

F · 01

Auto-Changeover Manifold

Four 80 L, 200 bar N2 cylinders with auto-changeover sustain uninterrupted purge for multi-shift operations.

4×80 L / 200 bar

F · 02

Cascaded Filtration

Cascaded 2 µm and 0.1 µm SS316 filters deliver ≥99.999% nitrogen purity at each laser optics point of use.

≥99.999% Purity

F · 03

Recipe-Driven PLC/HMI

PLC/HMI recipe manager logs ramp-up, dwell, and ramp-down purge data to USB or network for complete traceability.

Full Traceability

F · 04

Two-Stage Relief

Relief valves at 8 bar and 15 bar auto-vent overpressure; 4–20 mA transmitters with ≤0.5% BFSL accuracy log data.

Overpressure Protection

F · 05

Bubble-Tight Isolation

ANSI Class 2500 ball valves with Leakage Class IV give bubble-tight isolation during scheduled maintenance cycles.

Leakage Class IV

F · 06

Modular Turnkey Skid

Modular skid enables turnkey DRDO installation; pre-set purge recipes ensure repeatable results across campaigns.

Turnkey Installation

Image Gallery

The skid, in detail.

Component detail from a delivered Gas Purging System — valve assembly and inert gas flow regulation.

Gas purging system component and valve assembly - inert gas flow regulation and purging equipment by Neometrix

Fig · 03–04 Component detail · valve assembly and inert gas flow regulation

Video

See the purge system.

A walkthrough of the Neometrix Gas Purging System build and controls.

Downloads

Catalog & design drawings.

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

Specifications

Full technical parameters.

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

Nitrogen Purity	≥99.999% dry, oil-free
Cylinder Manifold	4×80 L, 200 bar, auto-changeover
Pressure Control	±1 bar via multi-stage mechanical reduction
Ball Valves	½″ OD tube ports; ANSI Class 2500; Leakage Class IV
Filtration	Primary 2 µm; secondary 0.1 µm, SS316
Pressure Transmitters	316L SS wetted parts; ≤0.5% BFSL accuracy; UL/CSA/GOST approved
Transmitter Output/Range	4–20 mA, 0–200 bar
Relief Valves	Spring-loaded SS316; two-stage at 8 bar & 15 bar
Control Platform	PLC-driven, HMI touchscreen, recipe management
Data Logging	USB / network logging with remote diagnostics

Applications

Where it runs.

From laser beam purging to leak-test integrity checks, the Gas Purging System serves defense laser optics operations.

A · 01Laser beam purging: displaces air and moisture from beam-guiding tubes to maintain power density and prevent beam divergence.

A · 02Optics protection: creates an inert blanket over lenses and mirrors, extending service intervals by reducing oxidation and carbonization on critical surfaces.

A · 03Leak testing & maintenance: automated purge-and-soak cycles for verifying system integrity after component replacement, with logged pressure-decay profiles.

In Depth

The complete technical read.

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

Introduction

Neometrix's Gas Purging System for LASTEC, DRDO is engineered to deliver ultra-high-purity nitrogen in defense-grade laser applications, where even trace oxygen or moisture can degrade optical components and beam quality. Nitrogen, being inert, dry and oil-free, prevents oxidation of beam-guiding optics and removes particulate contaminants from the laser path, ensuring consistent cutting or machining performance.