2023 Presvac Systems Powervac 3800 Wet VacDOT - Liquid Vac
Powervac 3800, 3500 USG, Carbon Steel, DOT 407/412 Code Tank with a 3800 CFM Robuschi Positive Displacement Blower. Kenworth T880 Chassis w/500 HP MX13 Engine and Allison RDS4500 Transmission.
Capacity - 3500 U.S. gallons plus 3% outage for expansion
Head material - 5/16" carbon steel
Shell material - 1/4" carbon steel
Tank diameter - 78" outside diameter
Tank length - 16’ ( shell 13’)
Reinforcing - External exposed flat bar rings
Design pressure (internal) - 14.6 p.s.i.
Design pressure (external) - 15 p.s.i. (full vacuum)
Hydrostatic test pressure - 14.6 p.s.i.
Pressure relief valve - 2” in piping near pump
Temperature operating range - -20oF to 200oF
Compartments - Single
Baffle - None
Top manway - 20" with wingbolt closures
Spill box - Around manway with 2” drain hoses, 3” sampling port inside spill box with coupling and cap
Liquid level indicator - Rotary float gauge with 9" stainless steel floatball, teflon seals, driverside front shell. Western Canadian Style
Catwalk – OSHA type - Gripstrut material at 3 o'clock position, full length
Ladder - Anti-skid.
Handrail - Safety grab rail at tank top.
Front hoist - 25 ton capacity-120” stroke, three stage hydraulic hoist. Full length subframe with body stops. Heavy duty hinge assemblies with grease fittings. Hoist safety prop.
Rear door - Full opening, top hinged, door hydraulic up and down. Grease fittings on all moving parts.
Neoprene door seal. carbon Steel. Door safety prop.
Hose trays and fenders - Combination Stainless Steel outside and inside painted, fenders on both sides of unit, stay down when tank lifts, trays closed in on ends, SS drain valves in each front tray.
Mudflaps - Front and rear, anti-sail
Toolbox - One (1) 36" x 18" x 20" passenger side, aluminum
Decant valve - 4” decant valve at 3 o’clock position, rear head, coupling and cap
Rear valves (suction) - One (1) 6” manual Betts valve, coupling and cap
Rear valves (discharge) - One (1) 6” manual Betts valve, coupling and cap
Top loading port - None
Rear bumper - Heavy duty, Anti-skid steps for access to rear door locks.
- Close to the tank as possible
Vibrator - Hydraulic, mounted on heavy duty mounting channel and heavy duty tank mounting pad.
Pressure relief valve and variable speed control.
Placards - Set of four (4) multi-purpose
Fire extinguisher - One (1)
Static ground - Ground cable, 25' with clamp
Working lights – L.E.D. - Three (3) - two (2) at rear, one (1) at vacuum pump area
Flashing beacon - Top, amber rotating
Back up alarm - Audible, decibel rating 97 DBA
Running lights – L.E.D. - Vapour proof, “Truck Lites” with all wiring in conduit, clearance lights, reflectors, junction box with clear lens.
Hose hooks - Rear mounted, low for easy reach
Vacuum blower - Robuschi 125/3800CFM rotary lobe positive displacement blower - Tri Lobe.
Capacity 3800 SCFM.
Maximum vacuum 27” mercury.
Capacity 3240 SCFM @ 15” mercury
Capacity 2800 SCFM @ 24” mercury.
Vacuum pump drive - Air engaged heavy duty NAMCO power transfer case
Silencers - 12” heavy duty exhaust silencer with rain cap.
- 12” heavy duty air injection silencer with rain cap.
Check valve - To prevent blower back spin
Primary shut off (liquid) - Internal top 12" stainless steel floatball in 20" hatch. Neoprene seat
Isolation valve - One (1) 8" air operated valve in 8" vacuum line with safety shear section
Cyclones - standard - Two (2) cyclones for 8” lines, In Series
Drop-out boxes with slanted floors for easy cleaning, 2” drain valves with fittings.
Cleanout door 20” diameter.
Vacuum pump lines - 8” to allow for maximum airflow with automatic disconnects between tank and cyclones
Vacuum breaker - Manual 6” quick action valve with screen guard
- Electric/pneumatic 6” valve operated from pendant
Final filtration - One (1) cartridge type filter (reusable).
Filter housing with quick opening door.
Hydraulic system - Hydraulic reservoir.
Vented filler cap, filter and suction strainer, sight level tube. Hydraulic pump driven from air p.t.o. Valve bank to operate: dump body hoist, rear door, PV-750 pump, and vibrator oil pressure gauge and pressure relief valve. 3/4" drain in oil tank. Oil cooler and fan assembly
Auxiliary vacuum/pressure pump - Presvac PV750, 410 CFM @ free Air, 27” Hg maximum vacuum, 25 p.s.i. maximum pressure. Four way valve for vacuum and pressure. Check valve, oil catch muffler. External moisture trap with 5” stainless steel floatball and 2” drain valve. 3” air operated, isolation valve with continuous grounded vacuum lines looped to rear. No disconnecting required when dumping
Finish - Painted tank- 1 color
- Sandblasted with two (2) coats of primer paint. Two (2) coats of finish paint, Dupont Centari - acrylic urethane enamel, one (1) color