Approved for Petroleum, products and IMO type II or III chemical tankers
carrying dangerous flammable shiploads of a Maximum Experimental
Safe Gap(MESG) with 0.65mm and 0.9mm

1. Reliable operations reduces vapor losses
2. Suitable and compact design ensures long-term maintenance free life cycle
3. Meet new IMO & MED requirements for cargo vapor flammability
- MESG 0.9 & 0.65 mm
4. Non-oscillating performance
5. Full lifting and high flow capacity
6. Variable application for usable installation vent pipe length and flow capacity range
7. No peak pressure over opening pressure
8. No need inside maintenance
9. No need to disassemble when inspecting, cleaning, maintenance
10. No need to exhaust vapor gas when adjusting outisde opening and closing pressure

This valve is also designed for devices to prevent the passage of flame into cargo tanks in tankers and to relieve excessive over pressure or under vacuum of cargo tanks during cargo loading, discharging, ballasting and thermal variations.