EH230-1-2-3
1 = Coaming Material
A = Al
M = M/S
2 = Emergency Vent
6A = Nitrile seal Australian label [Opens at 30kPa, Capacity: 8,500m3/hr at 45 kPa].
6AV = Viton seal Australian label [Opens at 30kPa, Capacity: 8,500m3/hr at 45 kPa].
6U = Nitrile seal UK label [Opens at 24kPa, Capacity: 8,500m3/hr at 45 kPa].
6UV = Viton seal UK label [Opens at 24kPa, Capacity: 8,500m3/hr at 45 kPa].
3 = PVV Vent
8O = Blanking plate
8A = PVV104M - Australia[Opens at 10 to17kPa pressure / 0 to -4 kPa vacuum, Capacity: 98m3/hr at 35 kPa].
8U = PVV104UM - International. [Opens at 8 to 12kPa pressure / -0.4 to -2.5 kPa vacuum, Capacity: 91m3/hr at 30 kPa].