Gas freeing fans
Jetfan 70 Water Driven
Compact, water-driven Mark III gas freeing fan with deep air penetration in a small, robust unit.
- Water driven
- Mark III
- 21 kg
- Aluminium construction

Overview
High performance in a small, robust unit
The Jetfan 70 Mark III packs high-performance gas freeing into a remarkably small but robust unit. Like every Jetfan, it directs the air as a column to the tank bottom, displacing the gaseous atmosphere more effectively and reaching the deepest parts of the tank structure.
Normally used as a blowing fan, it can easily be reversed for extraction. The aluminium construction suits the harsh marine environment and the water turbine is positioned so there is no risk of water entering the cargo hold.
At a glance
| Drive media | Water |
| Max. height | 340 mm |
| Weight | 21 kg |
| Supply connection | 2.5″ 7.5 tpi male (BW) |
Benefits
Why operators choose it
- Deep air penetration
- Low maintenance
- Powerful, so overall operation time is short
- Simple, robust design
- Straightforward to switch between penetration and extraction
- Water turbine positioned so there is no risk of water entering the cargo hold
Specification
| Drive media | Water |
| Max. height | 340 mm |
| Max. width | 485 mm |
| Weight | 21 kg |
| Supply connection | 2.5″ 7.5 tpi male (BW) |
| Discharge connection | 2.5″ 7.5 tpi male (BW) |
Scope of supply
What’s in the box
A typical supply includes:
- Jetfan 70 machine
- User operation and maintenance manual
- Maintenance tool set with spares
- 50 mm layflat supply hose
- 50 mm layflat discharge hose
- 300 mm flexible ducting
Typical applications
Need help selecting the right configuration?
Our engineers will confirm the machine, nozzle size and set-up for your vessel.
Downloads

