紧急开启压力 21 KPa-32KPa
Emergency venting (fire engulfment), tank breathing and flanges for ancilliary equipment are included with all our Manhole Covers.These features protect the tanker against rupture, division reversal and explosion when either natural or catastrophic internal pressures build up.
Vacuum relief protects against tank implosion and compartment division reversal. The 10" hinged, lockable hatch facilitates easy insertion of top loading pipes while the ancilliary flanges save costs, time and aid tank integrity.
Internationally accepted and specified by oil companies around the world to assist with the safe conveyance of petroleum based products, our range of lightweight aluminum manhole covers offer unrivalled safety features and operational benefits.
Our Manhole Covers can be supplied as either left-hand or right-hand configuration allowing ancillary items, such as HLCO, Dip Tube or Mechanical Top Operator, to be positioned on the tanker centre line.
Emergency opening pressure
Maximum displacement of emergency
Aluminum alloy, carbon steel (optional)
Flange, hoop (optional)