Details

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.

Key Features
 • Auto Changeover Dual-Cylinder Manifold: Automatically switches between primary and standby cylinder banks when pressure falls below set thresholds, ensuring continuous supply without manual intervention.
 • Multi-Stage Purification Trains: Sequential trap cartridges remove moisture (<5 ppb), hydrocarbons (<15 ppb), and residual O2 (<1 ppb); housed in SS 304 panels with quick-change elements.
 • Point-of-Use SS 316L Regulators: Ultra-miniature, single-stage regulators deliver controlled outlet pressures (0–100 psi) directly at instrument inlets, with integrated shut-off valves for safe line isolation.
 • Electropolished SS 316/316L Tubing & Fittings: Leak-tight tubing (1⁄4′′×0.035′′, 1⁄8′′×0.028′′) and compression βittings (tees, unions, reducers) ensure inert βlow paths; custom-length pigtails and flexible braided hoses complete the distribution network.
 • Gas Detection & Safety System: ATEX/CE-certified multi-channel detector panel monitors O2, combustibles, and toxic gases via SS 316 transmitter heads; provides 4–20mA outputs, programmable relays, and RS-485 Modbus communications with visual/audible alarms.
 • Custom Control Panels: Powder-coated MS enclosures arranged per the full-layout drawing, panel-mounted with process regulators, dual-scale gauges, relief valves, and isolation valves for ergonomic operation and straightforward expansion.

Applications
 • Analytical 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.
 • Catalyst 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.
 • Process 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.
 • Safety-Critical Environments: In inerting or blanketing applications (e.g., gloveboxes, Schlenk lines), integrated detection and automatic shutdown protect personnel and samples from asphyxiation or explosion risks.

Technical Specifications

  

    

      
Parameter
      
Specification
    
  
  

    

      
Overall Dimensions (L×W×H)
      
12,600 × 2,000 × 3,500 mm
    
    

      
Tank Capacity
      
2 × 2,000 L PVC
    
    

      
Pump & Motor
      
Grundfos CM 15-3, 4 kW (5.36 HP), 3-phase, 50 Hz
    
    

      
Flow Rate
      
Up to 250 LPM; per-nozzle: 1–2 LPM at 2 bar
    
    

      
Working Pressure
      
Up to 10 kg/cm²; test pressure typically 1–2 bar
    
    

      
Nozzle Material & Size
      
SS 304; Ø2 mm holes (8-place)
    
    

      
Filter Mesh Size
      
60 mesh (250 LPM capacity)
    
    

      
Frame Material
      
SS 304 square tubing
    
    

      
Piping
      
Schedule-80 uPVC
    
    

      
Mobility
      
6 × lockable caster wheels (7,500 N each)
    
    

      
Operating Voltage/Temp.
      
180–240 VAC; 15–24 °C ambient
    
    

      
Weight
      
Approximate per GA drawing
    
  


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 (⅛″×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
    
  



Core Components & Functionality
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. This maximizes gas usage and eliminates manual intervention.

Purification Modules
Each gas stream flows through cartridge-type traps in SS 304 panels: 
1. Desiccant Stage lowers moisture to <5 ppb; 
2. Carbon Bed removes hydrocarbons to <15 ppb; 
3. Oxygen Scavenger ensures residual O2 <1 ppb. Cartridges snap in/out via quick-release clamps.

Point-of-Use Regulation
Compact SS 316L regulators positioned at instrument inlets maintain stable 0–100 psi pressures. Their diaphragm-sensed design and integrated filters deliver contaminant-free gas with optimized flow characteristics and isolation valves for maintenance.

Distribution Network
Electropolished SS tubing ensures smooth, inert flow with minimal dead volume. Compression fittings provide versatile routing; flexible braided hoses accommodate movement and vibration isolation. All connections undergo helium leak testing to <1×10−9 mbar·L/s.

Detection & Control
A 16-channel ATEX/CE panel aggregates analog (4–20 mA) and digital (Modbus RTU) signals from SS 316 sensor heads. Programmable alarms, relay outputs, and visual/audible indicators allow automated shutdown upon hazardous conditions.

Panel Assembly
Enclosures are built per the A1841 layout, with standardized frame sizes, knock-outs, and mounting rails. Regulators, gauges, and valves are ergonomically arranged for visibility and maintenance access.

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.


English
gas distribution system, laboratory gas supply system, automatic gas manifold, gas
purification panel, point-of-use gas regulator, high-purity gas delivery, ppb-level gas
purification, dual-cylinder changeover, stainless-steel gas tubing, gas detection system

German
Gasverteilungssystem, Labor-Gasversorgung, automatisches Zylinder-Wechselsystem,
Gasreinigungsmodul, Gasdruckminderer, hochreines Gas, PPB-Gasreinigung,
Doppelzylinder-Wechsel, Edelstahl-Gasleitung, Gaserkennungssystem

French
système de distribution de gaz, approvisionnement en gaz de laboratoire, collecteur
automatique de bouteilles, module de purification de gaz, régulateur de gaz point d’usage,
fourniture de gaz haute pureté, purification gaz ppb, bascule de cylindres doubles,
tuyauterie inoxydable, système de détection de gaz

Italian
sistema di distribuzione gas, fornitura gas da laboratorio, collettore automatico bombole,
modulo di purificazione gas, regolatore gas punto d’uso, erogazione gas ad alta purezza,
purificazione gas ppb, cambio bombola doppio, tubazioni in acciaio inox, sistema di
rilevazione gas

Spanish
sistema de distribución de gas, suministro de gas de laboratorio, colector automático de
cilindros, módulo de purificación de gas, regulador de gas punto de uso, suministro de gas
de alta pureza, purificación de gas ppb, cambio automático de cilindros, tubería de acero
inoxidable, sistema de detección de gas

Portuguese
sistema de distribuição de gás, fornecimento de gás laboratorial, coletor automático de
cilindros, módulo de purificação de gás, regulador de gás ponto de uso, fornecimento de gás
de alta pureza, purificação de gás ppb, alternância de cilindros duplos, tubulação de aço
inoxidável, sistema de detecção de gás

Russian
система распределения газа, лабораторная подача газа, автоматический коллектор
баллонов, модуль очистки газа, регулятор газа в точке потребления, подача
высокочистого газа, очистка газа ppb, переключение двух баллонов, нержавеющая
газовая трубка, система обнаружения газа

Chinese (简体中文)
气体分配系统, 实验室气体供应, 自动气瓶切换, 气体净化模块, 现场用气调压器, 高纯度气体
输送, ppb 级气体净化, 双瓶切换, 不锈钢气体管路, 气体检测系统

Japanese (日本語)
ガス分配システム, ラボ用ガス供給, 自動シリンダー切替, ガス精製モジュール, ポイント
オブユースガスレギュレータ, 高純度ガス供給, ppb レベル精製, デュアルシリンダー切替
, ステンレスガス配管, ガス検知システム

Korean (한국어)
가스 분배 시스템, 실험실 가스 공급, 자동 실린더 전환기, 가스 정화 모듈, 포인트오브유스
가스 레귤레이터, 고순도 가스 전달, ppb 가스 정화, 이중 실린더 전환, 스테인리스 가스
배관, 가스 감지 시스템

(العᘭᗖᖁة) Arabic
نظام توزيع الغاز ,توريد الغاز للمختبر ,تبديل أسطوانات آلي ,وحدة تنقية الغاز ,منظم غاز نقطة الاستخدام ,توصيل غاز عالي
تبديل أسطوانتين ,أنابيب غاز ستانلس ستيل ,نظام كشف الغاز ,ppb النقاء ,تنقية غازات

Dutch
gaskanalisatiesysteem, laboratorium gasvoorziening, automatische cilinderwisselaar,
gassaneringsmodule, gasdrukregelaar, hogepuur gaslevering, ppb-gaszuivering, dubbele
cilinderwissel, roestvrijstalen gasleiding, gasdetectiesysteem

Turkish
gaz dağıtım sistemi, laboratuvar gaz beslemesi, otomatik silindir değiştirici, gaz arıtma
modülü, kullanım noktası gaz regülatörü, yüksek saflıkta gaz beslemesi, ppb gaz arıtma, çift
silindir değişimi, paslanmaz çelik gaz borusu, gaz tespit sistemi