1. Medical Gas Piping Design

Planning & Requirement Analysis

• Identification of required medical gases:

  • Oxygen (O₂)

  • Nitrogen (N₂)

  • Carbon Dioxide (CO₂)

  • Compressed Air (Medical Air)

  • Vacuum/Suction

• Analysis of flow rate and pressure requirements at each usage point

• Determination of gas supply source: cylinders, cryogenic tanks, or on-site generators

Piping System Design

1. Piping Layout

   • Determining main pipeline and branch line routing

   • Separating pipelines for different gases to prevent cross-contamination

   • Defining locations of manifolds, outlets, and distribution panels

2. Material Specifications

   • Seamless copper pipes (medical grade) in accordance with ASME B31.3 or NFPA 99

   • Gas-compatible fittings and valves with color coding and gas identification labels

   • Regulators and pressure gauges to control pressure at each distribution point

3. Safety & Redundancy

   • Gas leakage and pressure-drop alarm system

   • Pressure relief valves to prevent overpressure conditions

   • Duplex manifold system to ensure continuous gas supply during maintenance

4. Design Documentation

   • Complete medical gas pipeline P&ID (Piping & Instrumentation Diagram)

   • 2D/3D layout drawings of piping systems and supporting equipment

2. Medical Gas Piping Installation

Preparation

• Site cleaning and pipeline route mapping according to design layout

• Preparation of medical-grade copper pipes that have been degreased (oil-fre

Pipe & Equipment Installation

• Installation of main pipeline from gas source to distribution panels using brazing with lead-free silver solder

• Installation of gas outlets at usage points (e.g., cleanrooms, laboratories)

• Installation of manifolds in utility rooms for cylinder or cryogenic tank connections

Control & Alarm System Installation

• Gas pressure alarm panels installed in monitoring areas

• Pressure sensors and flow meters integrated with SCADA/BMS systems for real-time monitoring

3. Pressure Testing & Validation

1. Pressure Test

   • Conducted using nitrogen or inert gas to test pipeline strength under high pressure

   • Ensures no leakage at joints and valves

2. Purging & Cleaning

   • Cleaning of pipelines to remove contaminants before introducing medical gases

3. Kualifikasi Sistem

   • IQ (Installation Qualification): verifies installation complies with design and standards

   • OQ (Operational Qualification): ensures system operates within defined parameters

   • Leak Test & Alarm Test: verifies alarm system functionality during leaks or low-pressure conditions

4. Standards & Regulations Used

• NFPA 99: Health Care Facilities Code.

• ASME B31.3: Process Piping Standard.

• ISO 7396-1: Medical Gas Pipeline Systems.

• CPOB/GMP Pharmaceutical facility requirements