Air Supply Hose Types Uses & Price in Pakistan. it is a high-pressure or low-pressure flexible hose used to deliver breathable compressed air from a source (compressor, cascade system, or cylinder) to respiratory protection equipment such as SCBA, Airline Breathing Apparatus (ABA), and industrial breathing systems.
International breathing air safety standards are guided by the National Fire Protection Association (NFPA) and the International Organization for Standardization (ISO). In Pakistan, compliance aligns with the Pakistan Standards and Quality Control Authority (PSQCA).
🔎 What is an Air Supply Hose?
An Air Supply Hose is a reinforced, pressure-rated flexible tube that:
- Transfers breathable compressed air safely
- Connects regulators to cylinders or compressors
- Withstands high pressure (up to 300 bar in some systems)
- Resists oil, abrasion, heat, and chemicals
- Ensures continuous airflow without leakage
It is a critical component in industrial respiratory protection and diving systems.
⚙ Working Principle of Air Supply Hose
1️⃣ Compressed air is generated from a breathing air compressor or stored in a cylinder
2️⃣ Air passes through pressure regulators
3️⃣ The hose carries regulated air to the mask or demand valve
4️⃣ Reinforced layers prevent bursting under pressure
5️⃣ Quick-connect couplings ensure secure attachment
The hose maintains pressure integrity and uninterrupted airflow during operation.
🧰 Types of Air Supply Hoses
1️⃣ Low-Pressure Airline Hose
- Used in airline breathing apparatus
- Typically operates below 20 bar
- Flexible and lightweight
- Suitable for industrial confined space work
2️⃣ High-Pressure Hose
- Used in SCBA and cascade systems
- Rated for 200–300 bar
- Steel-braided or Kevlar reinforced
- Heavy-duty industrial use
3️⃣ Scuba Regulator Hose
- Connects first stage to second stage regulator
- Medium pressure (approx. 8–10 bar)
- Includes low-pressure inflator hose for BCD
4️⃣ Coiled Air Hose
- Expandable design
- Prevents dragging
- Used in mobile industrial setups
5️⃣ Chemical-Resistant Hose
- Used in oil & gas plants
- Resistant to hydrocarbons and harsh environments
🌊 Use in SCBA & Diving Equipment
Breathing Apparatus Backplate and Harness
Holds the breathing air cylinder firmly in place Distributes weight evenly across shoulders and waist Secures regulator hoses and accessories Provides ergonomic comfort during long-duration use Maintains cylinder alignment for safe breathing
✅ SCBA Systems
Air supply hoses connect:
- Cylinder to first-stage regulator
- First-stage to demand valve
- Pressure gauge line
Used by firefighters and rescue teams for 30–60 minutes of breathable air.
✅ Airline Breathing Apparatus
- Connects worker to remote compressor
- Suitable for long-duration tasks
- Used in tank cleaning, shipyards, refineries
✅ Scuba Diving Equipment
In scuba systems, hoses connect:
- First stage regulator
- Second stage regulator
- Octopus regulator
- Buoyancy Control Device (BCD) inflator
- Submersible Pressure Gauge (SPG)
They must withstand underwater pressure and saltwater corrosion.
⚙ Main Components of Air Supply Hose
- Inner synthetic rubber tube
- Reinforcement layer (steel braid / fiber braid)
- Outer abrasion-resistant cover
- Crimped fittings
- Quick-connect coupling
- O-rings and seals
- Pressure rating marking
Each layer ensures safety, durability, and air-tight performance.
🏭 Applications in Pakistan
Air supply hoses are widely used in:
- Oil & gas refineries
- Offshore platforms
- Shipbreaking yards
- Fire departments
- Industrial confined spaces
- Commercial diving operations
- Marine vessels
High industrial demand exists in Karachi, Port Qasim, and major manufacturing hubs.
💰 Air Supply Hose Price in Pakistan
| Type | Estimated Price Range (PKR) |
|---|---|
| Low-Pressure Airline Hose (per meter) | 2,500 – 6,000 |
| High-Pressure SCBA Hose | 12,000 – 45,000 |
| Scuba Regulator Hose | 6,000 – 18,000 |
| Coiled Industrial Air Hose | 8,000 – 25,000 |
Prices vary based on length, pressure rating, material quality, certification, and brand.
🧪 Maintenance & Safety Guidelines
For safe operation:
- Inspect for cracks, bulges, or abrasion
- Check fittings for leakage
- Replace damaged O-rings
- Avoid sharp bends or kinks
- Pressure test periodically
- Store away from direct sunlight and chemicals
- Replace hose if pressure rating is compromised
A damaged air hose may cause air leakage, pressure loss, or sudden rupture — posing serious risks in hazardous environments.
he Air Supply Hose is a vital component in breathing systems used across firefighting, industrial, marine, and diving sectors in Pakistan. Whether integrated into SCBA units, airline breathing apparatus, or scuba regulators, it ensures safe, continuous, and controlled delivery of breathable air in demanding environments.