PAC H108 H64 F1212 E

PAC H64 Electric - Vacuum prime centrifugal pumps

The pump system consists of a centrifugal pump and a separator, which enables air to be separated from the liquid and be sucked by a vacuum pump - making automatic priming possible. Even with suction heights of several feet the machine rapidly evacuates the air from the suction pipe and starts to pump. The PAC range is also suitable for pumping liquids with solids in suspension with best possible efficiency

The PAS 100 HF Atlas Copco pump is designed to withstand toughest applications and delivers best in class pumping efficiency. One of the most common area of utilization is the Construction dewatering and municipal market segment where reliability, serviceability and versatility is the key to provide a customized solution. Other suitable applications can be found within the Industry, Mining or Oil & Gas segment. Atlas Copco pumps are packed with features that not only meet, but exceed the needs of our customers.

View and/or Download PAC H64 E: Brochure / Datasheet


Model PAC H64 E 350HP
Qmax 1,900 USgpm
Hmax 380 ft
Q max eff. 2,100 USgpm
Eff. max 69%
Suction port 6" Flange - ANSI class 150
Delivery port 4" Flange - ANSI class 150
Impeller type Enclosed, 2 vane
Impeller diameter 17"
Solids handling 3"
Casing ASTM A536 ductile iron
Impeller ASTM A743 CA6NM
Wear Ring ASTM A48 Class 20 cast iron
Wear Plate ASTM A48 Class 20 Grey Iron + NBR rubber coating
Shaft AISI 630 stainless steel
Mechanical Seal faces Silicon carbide Vs Silicon carbide
Elastomers VITON
Check Valve ASTM A536 ductile iron + NBR rubber flap
Separator Steel
Priming System  
Vacuum pump  
Vacuum pump type Diaphragm
Nominal air capacity 50.0 cfm
Max vacuum - 26.6 inHg
Drives Link belt

Make Weg
Type Three Phase Induction Motor
Cooling Method IC411 - TEFC
No. poles 4
Tension supply 460 V
Frequency 60 Hz
Rated Power 350 HP
Rated Speed 1,790 rpm
Rated Current 384 A
Efficiency class W22 NEMA premium efficiency
Max Effiency 96.2%
Protecting rating IPW55
Insulation class F
Thermal Protection PTC Thermistors
Duty Cycle Continuous - S1
Technical data  
Material ASTM A36 steel
Coatings Epoxy powder, average thickness of 3 MIL
Features Lifting beam. Fork lift pockets. Pump access through hinged door.
Dry weight 6,724 lbs


Speed Impeller Dia. Style Solids Dia. Ns Suction Discharge No. Vanes
Various 17" / 440 mm Enclosed 3" / 76 mm 1800 rpm 6" / 150 mm 4" / 100 mm 2

flow limits graph

flow limits graph

flow limits graph


Solids handling
The 17" impeller with 69% efficiency at B.E.P. provides best pumping result with minimal efforts Closed impeller type with solids handling capability of 3" for trouble free operation Semi cartridge seal and bolted front wear ring for easy service 

Applications & Use Cases

Sewer Bypass / Lift Station Bypass

PAS 100 sewer bypass

Bypass pumping involves maneuvering liquid (sewage, trash, water, etc.) around a damaged pipe without interrupting the flow of liquid while the repairs are underway. This process is critical for many rehab projects, as it allows for a pipe to be repaired or replaced without spillage on public or private property. Bypass pumping uses a PAS HF, which is a centrifugal pump that can handle liquids containing solids of up to 1.8". Because of this, the PAS HF pump is well suited for bypassing in construction, industrial, and municipal applications.

Bypass is common in these sectors:

  • Municipalities
  • Civil Construction
  • Industry

Solids can build up at wastewater treatment plants or places a digestor is used over time as they settle out with solids. The build-up of solids, sludge, and stringy material in digester tanks can negatively impact the operation of digesters. This requires the right pump, usually with an open impeller to get a clean, easily flowing body of water.

Areas for Digestor cleanouts :

  • Aeration basin
  • Lift station
  • Digester Cleaning
  • Sludge Removal

Digestor Cleanouts

PAS 100 draining sludge from treatment facility


Water transfer in quarry and mine

Site dewatering is the process of taking and removing water from construction sites, quarries, mine shafts, or any other area. Extracting water from these areas is crucial to maintain a safe working environment as well as reduce any costly delays.

Due to the PAS' ability to handle pumping high volumes, this pump is able to displace not only water, but sewage, industrial waste, chemicals, and even some solid products.

Areas for site dewatering :

  • Quarries
  • Construction sites
  • Mine shafts
  • Municipalities