About Linear Pneumatic Heat Detection Tube

Linear Pneumatic Heat Detection Tube system is a good option for small electrical, server, DNS, UPS, battery, or network rooms where you want automatic fire detection and direct suppression without complex electronic detectors.

What It Is

A heat-sensitive pneumatic tube is installed around protected equipment.
When temperature reaches a preset level (typically 68C110C depending on tube type), the tube bursts at the hottest point and triggers fire suppression.

Commonly used with:

• FM-200
• Novec 1230
• CO2 Fire Suppression System
• Dry chemical systems

How It Works

Direct Release System

1. Detection tube installed above/inside racks or panels
2. Fire heats tube
3. Tube ruptures at hottest point
4. Suppression agent discharges directly at fire source

Best for:

• Electrical cabinets
• Server racks
• Battery cabinets
• Small DNS/network rooms

Indirect Release System

1. Tube senses heat
2. Pressure drop activates valve
3. Entire room suppression system discharges

Best for:

• Full room protection
• Data/server rooms
• Telecom rooms

Advantages

• No electricity needed for detection
• Very fast localized detection
• Low maintenance
• Cost-effective for small rooms
• Works during power failure
• Easy retrofit in existing server rooms

Typical Installation in DNS / Server Room

Detection tube routing:

• Above server racks
• Around UPS panels
• Cable trays
• PDU panels
• Network switches

Suppression cylinders:

• Wall-mounted outside room preferred
• Connected to nozzles or direct tube release

Important Design Considerations

1. Choose Correct Agent

For occupied IT rooms:

• Preferred:
  • Novec 1230
  • FM-200
• Avoid total flooding CO in occupied rooms

2. Room Sealing

For total flooding systems:

• Door seals required
• False ceiling/floor leakage checked
• Hold time usually 10 minutes

3. Standards

Common standards:

• NFPA NFPA 72
• NFPA NFPA 2001
• ISO standards
• Local fire authority requirements

Best Use Cases

Excellent for:

• Small DNS rooms
• Telecom shelters
• UPS rooms
• Electrical panels
• ATM machines
• CNC/electrical cabinets

Less suitable for:

• Very large data centers
• Open industrial halls
• Areas with high airflow unless engineered properly

Typical Small DNS Room Solution

Example:

• 1030 m room
• Detection tube around racks
• 25 kg clean agent cylinder
• Manual release + abort switch
• Alarm integration

If you provide:

• Room dimensions
• Number of racks
• Ceiling height
• UPS/battery presence

I can help you with:

• Basic suppression sizing
• Tube routing layout
• Cylinder capacity estimate
• Single-line schematic
• BOQ/material list
• Typical installation drawing