Document Ref 947571-001 Rev 2 Page 2-13
Quantium 110 & 210 Installation Manual Site Preparation
SPECIAL INFORMATION RELATING TO HIGH BLEND ETHANOL
FUELS (HBEF) & VAPOUR RETURN (VR) RETURN LINES
Following extensive explosion safety tests with HBEF by PTB, Tokheim
recommends all pipework back to the vapour space of the HBEF storage tank
should be protected by special flame arresters.
The vapour return line to the underground storage tank should be protected in
the event of a vehicle collision with a dispenser and also for maintenance
operations. The flame arrester(s) in the dispenser VR pump do not meet this
requirement.
An additional flame arrester must be positioned under the dispenser and must
be protected from potential damage during a vehicle collision so it remains
connected to the vapour return line to the tank in the event that the dispenser is
knocked off the island.
Note : This flame arrester is a requirement of the installation, not a requirement
of the dispenser.
If the Stage II VR return lines are routed back to the HBEF tank then the VR
return line from the dispenser vapour recovery system should protect the tank
by including a flame arrester.
VR Connection with Risbridger Shear Valve Option
M10x45 Bolt
Flange on Dispenser
VR Flexi
900015-022
901596
900758-003
Insulation Sleeve
901320-001
900011-004
901772
901859
Flange 1" 78mm
M10 Nut
Nipple
Gasket
G1" VR Pipe
with male thread
Underside of dispenser
17
Driptray
height
70
Terminate VR pipe
99mm below dispenser
99
U Clamp
903184
906069
Risbridger Shear Valve
IMPORTANT
Assembly below the shear point
must be secured to the ground
frame (NOT dispenser frame)
97.5
NOTE : All threads must be
sealed using Loctite 577
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