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ROAD TANKER > TRANSPORT
Liquip design and manufacture a range of round manhole covers to suit individual customer preferences with the choice of up to four attachment points for the addition of over fill probes, vapour vents, dip & fill tubes and Diptronic® tank gauging.
Sizes range from 400 mm – 500 mm (16” – 20”).
They are constructed of a cast Aluminium man-hole cover and bridge and handle with provision for pad locking the handle for security.
Additional security can be achieved with a non opening bridge & handle design.
REGULATIONS
Liquip manholes and vents are designed to comply with worldwide standards including:
Australia, UK, Europe, France & USA
DROP-TEST
Several models of Liquip man hole covers are Drop Test Approved to Australian, UK and US standards.
Drop tested manhole covers offer additional security in the event of a tanker rollover and help to prevent environmental damage and commercial loss through loss of product in a roll over situation.
MANHOLE BOLTING
Several methods of positioning manhole covers are available.
Clamp Band: A single clamp fits around the circumference of the manhole cover and manhole coaming which is tightened using a single bolt.
Care must be taken to fit this clamp band according to instructions to ensure manhole cover integrity.
Bolt Pattern: The manhole cover is attached to the manhole coaming using a 24 bolt pattern
Wing Nut: Used on Swing back and pressure hatches.
EMERGENCY VENT
All VOH series man hole covers incorporate a 225 mm (9”) emergency vent and a pressure vacuum vent,
The emergency vent is a safety device which is designed to open, relieve surge pressure and then close in the event of a tanker roll over, this action prevents rupturing of the tanker shell.
It can also be utilized to top load the tanker and is fitted with a two stage handle release to prevent hatch blow back when opening under pressure.
All VOH series manhole covers are also equipped with a pressure/vacuum vent which is used for thermal relief of each compartment and incorporates shut off in the event of a roll over.
Please note that this is not suitable for bottom loading with the man hole cover in the closed position, a separate vapour vent should be fitted for this operation.
MANHOLE COVER ACCESSORIES
Accessories to compliment and enhance your manhole covers
UG101 Ullage Gauge, Accessory Blank Plates, Manhole Cover Sightglass, Weather Hatches...
2008 C&N PETROLEUM EQUIPMENT
Design: DRAGAN GRAFIX