Q155 Low Pressure

Q155 Series Quintuplex Pumps

Versatile, Reliable Pumps for a Wide Range of Applications

  • 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 - Flow Capacities
ModelPressure psi (bar)rpmgpml/min
Q155E1500 (103)450157595
Q155F1850 (127)450127490
Q155H2100 (144)450111421

Q155 Low Pressure - Delivery
ModelPressure psi (bar)gal/revliters/rev
Q155E500 (34)0.3581.354
1000 (69)0.3531.338
1500 (104)0.3501.323
Q155F500 (34)0.2911.102
1000 (69)0.2871.085
1850 (127)0.2821.068
Q155H500 (34)0.2560.967
100 (69)0.2510.951
2100 (144)0.2470.936

Q155 Low Pressure - RPM
(Consult factory for speeds less than 200 rpm)

Q155 Low Pressure - Other Specifications
Maximum Discharge Pressure
Metallic Heads:Q155E1500 psi (103 bar)
Q155M1850 psi (127 bar)
Q155H2100 psi (144 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
Discharge PortWeld-On: 3” / SCH. 80
3” NPT
Shaft Diameter3 inch (76.2 mm)
Shaft RotationUni-directional (see rotation arrows)
Oil Capacity32 US quarts (30.3 liters)
10W30 standard-duty oil
Metallic Heads:1700 lbs. (3740 kg)
Fluid End Materials
Manifold:Nickel Aluminum Bronze (NAB)
316 Stainless Steel
Diaphragm/Elastomers:FKM, Buna-N
Diaphragm Follower Screw:316 Stainless Steel
Valve Spring Retainer:17-7 PH Stainless Steel
Check Valve Spring:Elgiloy
Valve Disc/Seat:Tungsten Carbide
17-4 Stainless Steel
Hastelloy C
Outlet Valve Retainer:316 Stainless Steel
Plug-Outlet Valve Port:316 Stainless Steel
Inlet Valve Retainer:316 Stainless Steel

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!