Circumferential Piston Pump QP Series
Like a Rotary Lobe Pump but with Super Powers
QP Series Pump Performance
Capacity
To 71m³ per hour
Pressure
To 34.5 bar
Viscosity
Up to 1,000,000 centiPoise
Temperature
To 150°C
Interchangeable Pumps and Parts - Why Pay More?
Unbeatable Pump and Parts Pricing!
The QP series pumps are 100% interchangeable with other leading brands and that includes both the pumps and their component parts.
If you currently use any of the other brands, you are probably paying significantly more than you should be.
BestPump will not be beaten on price against any of the competition and we do not compromise on quality – all pumps and parts originate in North America.
Call us on +44 (0)1236 433799 for a comparison price.
| Q-Pumps | Other Brands |
| QP1 | Waukesha U1 / TRA10 / ZP1 |
| QP2 | Waukesha U2 / TRA20 / ZP2 |
QP Series Pump Characteristics
- Stainless-steel gearbox for resistance to harsh conditions – no more unsightly cast iron gearboxes with flaking paint!
- 304 stainless-steel bearing retainers
- Strengthened solid 17-4 PH stainless-steel shafts
- Alloy 88 non-galling rotors
- Helical gears
- 4-way flexible mounting positions
- Grease fittings and oil plugs on both sides of pump
Hygienic Standards Compliant
- 3-A certified
Sealing Options
Standard mechanical seal faces in Tungsten Carbide with many options and materials to choose from including:
- Single O-ring Seal
- Single Mechanical Seal
- Double O-ring Seal
- Double Mechanical Seal
- Triple Lip Seal
Port Options
Tri-clamp connections as standard with other sanitary and industrial ports available
Engineered to handle tough pumping
- Heavy duty double tapered roller bearings
- Stainless-steel bearing retainer prevents corrosion and enhances bearing protection
- Strengthened solid 17-4 PH stainless-steel shafts for greater strength and torque capacity
- Alloy 88 non-galling rotors to maintain tight clearances. Optional clearance availabel for chocolate or high temperature duties
- Pump housing and cover constructed from 316L stainless-steel
- Seal options include single and double mechanical seals, O-ring seals and lip seals
- Threaded grease fitting for easy replacement
- Sealed stainless-steel cleanout plugs protect and extend bearing life
- Gear housing designed to mount the pump in four positions
- Sightglass / oil plug
- Separate oil chamber for gears
- Helical timing gears for increased load carrying capacity and reduced noise levels
- Stainless-steel gearbox
Features & Benefits
QP1 Series – The Everyday Workhorse
- 3-A Certified
- Up to 13.8 bar pressure capability
- Easy disassembly for clean-out-of-place (C.O.P.) cleaning
- Single and double mechanical seals, O-ring seals and lip seals available
QP2 Series – For Higher Hygiene
- 3-A Certified
- Improved hygienic design
- Up to 34.5 bar pressure capability
- Clean-In-Place (C.I.P.) design that reduces operational costs
- Single and double mechanical seals available
- Larger shafts to increase pump service life
QP1 Series Pump Models & Specifications
| QP1 Pump Model | Port Size | Flow lpm | Max RPM | Max Pressure BAR | Temp |
| 6 | 1-inch / DN25 | 24.8 | 800 | 13.8 | -40 to 149°C |
| 15 | 1.5-inch / DN40 | 37.6 | 700 | 13.8 | -40 to 149°C |
| 18 | 1.5-inch / DN40 | 65.9 | 600 | 13.8 | -40 to 149°C |
| 30 | 1.5-inch / DN40 | 136.6 | 600 | 13.8 | -40 to 149°C |
| 40 | 2-inch / DN50 | 172.6 | 600 | 10.3 | -40 to 149°C |
| 60 | 2.5-inch / DN65 | 347.5 | 600 | 13.8 | -40 to 149°C |
| 130 | 3-inch / DN80 | 576.8 | 600 | 13.8 | -40 to 149°C |
| 220 | 4-inch / DN100 | 1185.5 | 600 | 13.8 | -40 to 149°C |
QP2 Series Pump Models & Specifications
| QP2 Pump Model | Port Size | Flow lpm | Max RPM | Max Pressure BAR | Temp |
| 6 | 1-inch / DN25 | 30.3 | 1000 | 20.7 | -40 to 149°C |
| 15 | 1.5-inch / DN40 | 43.0 | 800 | 17.2 | -40 to 149°C |
| 18 | 1.5-inch / DN40 | 76.8 | 700 | 13.8 | -40 to 149°C |
| 30 | 1.5-inch / DN40 | 136.3 | 600 | 17.2 | -40 to 149°C |
| 40 | 2-inch / DN50 | 172.6 | 600 | 10.3 | -40 to 149°C |
| 45 | 2-inch / DN50 | 222.6 | 600 | 31.0 | -40 to 149°C |
| 60 | 2.5-inch / DN65 | 347.5 | 600 | 20.7 | -40 to 149°C |
| 130 | 3-inch / DN80 | 576.8 | 600 | 13.8 | -40 to 149°C |
| 180 | 3-inch / DN80 | 863.0 | 600 | 31.0 | -40 to 149°C |
| 210 | 4-inch / DN100 | 1140.0 | 600 | 34.5 | -40 to 149°C |
| 220 | 4-inch / DN100 | 1185.5 | 600 | 20.7 | -40 to 149°C |
Lobe Pump Spare Parts
Source genuine spare parts and convenient pump repair / service kits from BestPump – Q-Pumps authorised UK distributor.
Call us now on +44 (0) 1236 433 799.
Lobe Pump Repairs
Entrust your lobe pump repairs to BestPump’s manufacturer-approved engineers and workshop for service and repairs for all pump types and brands.
Call us now on +44 (0) 1236 433 799.
Pump Skids
When you need your pumps motorised and skid mounted, our design and fabrication capabilities are at your disposal.
From pump selection to mounting, BestPump will work with you to produce bespoke pump skids to your specifications and dimensions.