Page 18 - WM E-Learning Handbook
P. 18
Slide Topic Content Notes
CNG Fuel Storage Cylinders
Types of CNG Cylinders
Type 1: All-metal (steel or
aluminum)
Type 2: Hoop-wrapped
steel or aluminum
Waste Management trucks use:
Type 3: Fully-wrapped
steel or aluminum
Type 4: All-composite
(non-metallic)
Lifespan of a CNG Cylinder
Have a useful life of 15,
20 or 25 years from the
date of manufacture
At the end of useful life,
must be removed from
vehicle and destroyed
All CNG Cylinders have a:
Manual Shut-off Valve
PRD(s)
Vent line(s)
Waste Management CNG Fuel ASL/FEL
Storage Cylinder Locations Roof Mounted
Tailgate Mounted
REL
Front of the body, above
the cab
Stacked vertically in front
of the body
RO/Tractor
“Saddle Bag” Dual Frame
Mount
Light Weight
Single Frame Mount
Container Delivery
Stacked behind cab
Technician Safety and Awareness Training for NGVs © 2018 NGVi All Rights Reserved Page 16