Q155 Low Pressure

Q155 Series Quintuplex Pumps

Low Pressure Models Q155E, Q155F & Q155H

  • Seal-less design eliminates leaks, hazards and the expense associated with seals and packing
  • Low NPSH requirements allow for operation with a vacuum condition on the suction - positive suction pressure is not necessary
  • Can operate with a closed or blocked suction line and run dry indefinitely without damage, eliminating downtime and repair costs
  • Unique diaphragm design handles more abrasives with less wear than gear, screw or plunger pumps
  • Hydraulically balanced diaphragms to handle high pressures with low stress
  • Lower energy costs than centrifugal pumps
  • Rugged construction for long life with minimal maintenance
  • Compact design and double-ended shaft provide a variety of installation options

Q155 Low Pressure Resources

Q155 Low Pressure - Datasheets
Q155 Low Pressure Specifications
(Performance, Dimensions, Options, Ordering Information)
Application Worksheet

Q155 Low Pressure Series

Q155 Low Pressure - Other Specifications
Maximum Discharge Pressure
Metallic Heads:Q155E1500 psi (103 bar)
Q155F1850 psi (128 bar)
Q155H2100 psi (145 bar)
Maximum Inlet Pressure500 psi (34 bar)
Operating Temperature
Maximum:180 ̊F (82.2 ̊C)
Minimum:40 ̊F (4.4 ̊C)
Consult factory for temperatures outside this range
Maximum Solids Size800 microns
Input ShaftLeft or Right Side
Inlet PortWeld-On: 4” / SCH. 40
4” NPT, 4” Class 300 RF ANSI
Discharge PortWeld-On: 3” / SCH. 80
3” NPT, 3” Class 900 RF ANSI
Plunger Stroke Length3.5 Inches (88.9 mm)
Shaft Diameter3 inch (76.2 mm)
Shaft RotationUni-directional (see rotation arrows)
Oil Capacity32 US quarts (30.3 liters) - blank back cover
34 US quarts (32.2 liters) - oil level back cover
Metallic Heads:1700 lbs. (771 kg)
Fluid End Materials
Manifold:Nickel Aluminum Bronze (NAB)
Duplex Alloy 2205
316L Stainless Steel
Hastelloy CX2M
Diaphragm Follower Screw:316 Stainless Steel
Valve Spring Retainer:17-7 Stainless Steel
316 SST
Hastelloy C
Check Valve Spring:Elgiloy
Hastelloy C
Valve Disc/Seat:Tungsten Carbide
17-4 Stainless Steel
Nitronic 50
Hastelloy C
Outlet Valve Retainer:316 Stainless Steel
Plug-Outlet Valve Port:316 Stainless Steel
Inlet Valve Retainer:316 Stainless Steel
Power End Materials
Crankshaft:Forged Q&T Alloy Steel
Crankcase:Ductile Iron
Bearings:Spherical Roller (crankshaft main)
Steel Backed Babbitt (crankpin)
Bronze (wrist pin, center mains)

Q155 Low Pressure Manuals
Q155 Installation & Service Manual

Q155 Accessories
Q155 Pressure Accessories

Q155 Low 3D CAD Drawings
Q155 Low Pressure (STEP)

Low NPSH requirements allow for operation with a vacuum condition on the suction - positive suction pressure is not necessary.

Hydra-Cell Heavy Duty Pumps have proven their performance and reliability in the toughest industrial equipment and process applications.

When we say “Simply Built to Last”, we mean it!