2025 DOT 412 Liquid Vacuum Truck on a Kenworth T480 Chassis

CODE: D.O.T. 412 Vessel will be constructed and certified in conformance with the ASME Boiler
and Pressure Vessel Code (Section VIII, Division1).
QUANTITY: (1) Five, Full-tilt/Full-open
TANK CAPACITY: 3,150 USG (70 BBL)
HEAD MATERIAL: 5/16 Carbon Steel SA-516-70
SHELL MATERIAL: 5/16" Carbon Steel SA-516-70
TANK DIAMETER: 76” OD
DESIGN PRESSURE: (internal) 25 p.s.i.
DESIGN PRESSURE: (external) 15 p.s.i. (full vacuum)
HYDROSTATIC TEST PRESSURE: 40 p.s.i.
MAXIMUM ALLOWABLE WORKING PRESSURE: (MAWP) 25 p.s.i. (limited by design)
OPERATING TEMPERATURE: -20°F TO 200°F
REINFORCEMENT RINGS: ½” Flat bar, external reinforcement rings
OVERTURN PROTECTION: Overturn protection with reinforcement pads, CFR 49 178.337-10 (b)
PRESSURE RELIEF VENT: 3” Stainless Steel, 25 p.s.i. (412), per CFR 49 178.345-10
PRIMARY SHUT OFF: 4” stainless steel primary with 8” stainless steel float ball seating against a
neoprene seat
ISOLATION VALVE: 4” air operated butterfly valve between primary shut off and secondary
shut off, per CFR 49 178.345-11
VACUUM GAUGE: Two (2) 30/30 Vacuum/Pressure gauges, One install near controls, One
install on rear head.
LIQUID LEVEL INDICATOR: External arrow rotary float gauge with 8” stainless steel float ball,
Teflon packing and Teflon seat, equipped with grease fitting.
TOP MANWAY: One (1) 20” diameter carbon steel manway with neoprene gasket
SUCTION VALVE: One (1) 4” air operated self-closing NVE valve coupling & drip cap
per CFR 49 178.345-11
INTERNAL RISER PIPE: 4” with deflector wear plate
DISCHARGE VALVE: One (1) 6” air operated self-closing NVE valve coupling & drip cap per
CFR 49 178.345-11,
VACUUM PUMP: Fruitland 870, vacuum pressure pump, air cooled, 501
cfm free air rating 28” HG maximum vacuum, hydraulic driven
HYDRAULIC COMPONENTS: Hydraulic hoses, 25 gallons hydraulic reservoir, fill cap, oil filters,
sight glass, 2- spool valve bank, door, & hoist
HOIST: 3 stage-20 tons’ capacity, heavy-duty hinges, & grease fittings
HOIST SAFETY PROP: Manual engaging tank safety prop
VACUUM LINES: 4” wire reinforced, continuously grounded, neoprene vacuum / pressure
hose
REAR DOOR: Full opening rear door, hydraulic operated, heavy duty wing bolt closures
DOOR SAFETY PROP: Manual engaging back-door safety prop
PUMP MUFFLER: Oil catch muffler with drain valve, camlock coupling for exhaust hose adapter
WALKWAY: Ten-foot anti-skid grip-strut with handrail and aluminum fold down ladder
HOSE TRAYS/FENDERS: Full length combination hose trays and fenders one on each side of
tank to be painted black carbon steel
BUMPER: D.O.T. Heavy duty bumper for under ride protection, with ground cable
PRESSURE RELIEF VALVE: 2” brass pressure valve set at 14 PSI
VACUUM RELIEF VALVE: 11/2” brass vacuum valve set at 23 in.
PLACARDS: Four (4) multi-purpose
BACK-UP ALARM: Audible type
TOOLBOX: 18" x 18" x 36” Under bed toolbox, painted black
WORKLIGHTS: (2) Two – LED located on rear of tank.
GROUNDING SYSTEM: POSIGROUND from Garnet Tank Grounding System with Aluminum
Enclosure Grounding System configured to isolate the tank when not
properly grounded while PTO is engaged.
PAINT: The entire exterior of tank and body of vacuum system shall be sandblasted and powder
coated white. The hose trays, bumper, subframe, and hyd tank coated black
INSTALLATION: 2025 T480, Paccar PX-370, Allison 3000 RDS 6 Speed Auto, 14.6k front axles,
40k rear, Hendrickson HMX beam