Specs

Sizes
2” or 2-1/2” NPT, Optional Connections: 2” or 2-1/2” BSPT, Slip-on Weld
Max Pressure
Differential: 125 psid (8.6 bar), Working: 200 psi (13.8 bar)
Max Viscosity
Up to 20,000 SSU (4,250 cSt)
Temperature Range
: Up to 300°F (149°C)
  • Features
  • Specs

The Corken PZ-Series petroleum pumps offer the industry a choice in pump brand for greater flexibility and independence in the configuration and outfitting of fluid transfer systems and fuel delivery tankwagons. The pumps match common industry-standard flangeto-flange and mounting footprint dimensions for easy incorporation into existing or new vehicle layouts. And, they provide features that will be appreciated by system designers, truck outfitters, and end-user fuel marketers.

 When it comes to ease of doing business, product functionality, and breadth of product offering, Corken and Liquid Controls are your single source solution for transporting, dispensing and controlling high value fluids and gases. Common corporate ownership and shared distribution enables them to greatly simplify the procurement process. Rather than placing multiple orders, a customer can combine a pump, meter, and register into a single order.

Corken’s mechanical seal, fitted with Viton® O-rings is compatible with refined petroleum products including gasoline, fuel oil, kerosene, diesel fuel, AvGas, and others so you can pump nearly any product you are carrying without changing seals.

Material Specifications

Part Model Standard Material Optional Material
Case All Ductile iron ASTM A536  
Head All Ductile iron ASTM A536  
Flanges All Ductile iron ASTM A536  
Rotor All Ductile iron ASTM A536  
Bearing cap All Ductile iron ASTM A536  
Sideplates All Cast iron Class 30  
Vanes and vane drivers All Advanced polymer  
Bypass valve All 17-4 PH stainless steel  
Bypass spring All Steel  
Seal seat All Silicon carbide  
Seal metal parts All Steel  
Shaft All 8620 steel  
Thrust bearing All Steel  
O-rings All Viton ®* Buna-N

*Viton® is a registered trademark of the DuPont company.

Operating Specifications

Standard connections: 2" or 2-1/2" NPT
Optional connections: 2" or 2-1/2" Slip-on weld, BSPT
Maximum differential pressure: 125 psid (8.6 bar)
Operating temperature range: Up to 300°F (149°C)
Maximum working pressure: 200 psi (13.8 bar)
Maximum speed: 800 RPM
Fluids: For refined petroleum products and industrial solvents

PZ7 Perfromance Chart

Pump Speed
RPM
Differential Pressure Nominal Flowrate* Brake Hp Required Torque Required
psi bar gpm L/min bhp kW in•lbs N•m
800 90 6.2 98 371 6.8 5.0 536 60.5
800 50 3.4 105 397 3.8 2.2 299 33.8
640 90 6.2 78 295 5.5 4.1 542 61.2
640 50 3.4 84 318 3.1 2.3 305 34.5
575 90 6.2 70 273 4.9 3.7 537 60.7
575 50 3.4 75 284 2.7 2.0 296 33.4
420 90 6.2 51 182 3.6 2.7 540 61.0
420 50 3.4 55 197 2.0 1.5 300 33.9

PZ10 Perfromance Chart

Pump Speed
RPM
Differential Pressure Nominal Flowrate* Brake Hp Required Torque Required
psi bar gpm L/min bhp kW in•lbs N•m
800 90 6.2 152 575 10.3 7.7 811 91.7
800 50 3.4 161 609 5.7 4.3 449 50.7
640 90 6.2 121 458 8.2 6.1 808 91.2
640 50 3.4 128 485 4.6 3.4 453 51.2
575 90 6.2 109 413 7.3 5.4 800 90.4
575 50 3.4 115 435 4.1 3.1 449 50.8
420 90 6.2 80 303 5.4 4.0 810 91.6
420 50 3.4 85 321 3.0 2.2 450 50.9

*Nominal flow rate at pump outlet. The actual flow rate from the hose nozzle will be less, depending on hose length, hose diameter, nozzle size, product viscosity, and other system flow restrictions. Approximate capacities and horsepowers are based on a 38 SSU (3 cP) fluid.