Corken’s positive displacement sliding vane pump, known as a Coro-Vane®, is an excellent choice for propane, butane, and agricultural ammonia applications. The self-adjusting sliding vanes improve the pumping efficiency and help extend the life of the pump. Both the standard and Z-model pumps have a replaceable cam and sideplates. Removing the pump cover gives the user full access to the rotor, cam, sideplates, seals, and bearings. All of Corken's LPG sliding vane pumps are equipped with a non-adjustable internal relief valve pre-set at the factory so no adjustments in the field are necessary.

Standard Model Sliding
Vane Pumps

  • Original ten blade design with no blade drivers
  • Mechanical seal with new silicon carbide seal seat
  • O-ring construction throughout the pump
  • Internal relief valve is pre-set at the factory and is not adjustable
  • Designed for propane, butane, and ammonia
Operating Specifications
Flow rate: up to 385 gpm (1,457 l/min)
Working pressure: up to 400 psi (27.6 bar)
Differential pressure: up to 125 psi (8.6 bar)
Temperature range: -25 to 225°F (-32 to 107°C)
Viscosity: up to 20,000 SSU (4,250 cSt)

Overview
Corken's standard model sliding vane pumps utilize the original ten blade design with no blade drivers. The mechanical seal now has a silicon carbide seal seat providing maximum leakage control and is approved for propane, butane, and agricultural ammonia. Suitable for bulk pump transfer and propane delivery truck applications. Available in 2” and 3” sizes.

  • Designed for high pressure applications with a maximum working pressure of 400 psi (27.6 bar)
  • Foot mount design with a single shaft only for stationary applications
  • O-ring construction and no gaskets
  • Ten vane design with no vane drivers
  • Mechanically seal design with silicon carbide seal seat
  • V-belt drive or gear reduced direct drive
  • Available with NPT connections only
  • Approved by Underwriters' Laboratories (UL) for LPG and agricultural ammonia service only
  • Pump casing and heads: Ductile iron
  • Cam and sideplates: Gray iron
  • Rotor and flanges: Ductile iron
  • Seal seat: Silicon carbide
  • O-rings: Buna-N (Neoprene®. Registered trademark of DuPont)
  • Blades: Advanced polymers
  • Self-adjusting sliding vanes maximizes performance
  • Replaceable cam and sideplates and sideplates are reversible
  • Removing the pump head gives full access to the internals without disturbing the piping
  • Can handle small amounts of vapor - ideal for iquefied gases
  • Excellent suction lift is great for clearing suction and discharge lines
  • Internal relief valve is pre-set at the factory - no adjustments in the field are required
  • Agricultural ammonia
  • Butane
  • Propane
  • Terminal
  • Bulk plant
  • Mobile (trailers & portable skid units)

Z-Model Sliding Vane
Pumps

  • Six blade design with blade drivers
  • Mechanical seal with new silicon carbide seal seat
  • O-ring construction throughout
  • Internal relief valve is pre-set at the factory and is not adjustable
  • Designed for propane, butane, ammonia, and other light liquids
Operating Specifications
Flow rate: up to 385 gpm (1,457 l/min)
Working pressure: up to 400 psi (27.6 bar)
Differential pressure: up to 125 psi (8.6 bar)
Temperature range: -25 to 225°F (-32 to 107°C)
Viscosity: up to 20,000 SSU (4,250 cSt)

Overview
The Z-Series Coro-Vane® pumps offer a six blade design with blade drivers and a patented needle roller thrust bearing rated for 4,000 lbs. The needle roller thrust bearings protects the pump against dynamic impact loads imposed on the pump by the drive system. Premature failures due to axial thrust loads are minimized on truck applications. With O-ring construction throughout, they are rated for 400 psi (28.6 bar) working pressure. Since the Z-models sliding vane pumps are used primarily in LPG (propane & butane) and agricultural ammonia applications, the non-adjustable internal relief valve is pre-set at the factory and does not require adjustments in the field.

Z-Series pumps are a great option for other liquefied gases with high vapor pressures such as natural gas liquids (NGLs), refrigerants, CO2, and many more. Applications include bulk pump transfer, propane delivery truck, and transport. Available in 2”, 3” and 4” sizes.

  • Designed for high pressure applications with a maximum working pressure of 400 psi (27.6 bar)
  • Available in foot and truck mounted designs
  • O-ring construction
  • Six vanes/blades design with vane drivers
  • Mechanically seal design with silicon carbide seal seat
  • Depending on the model, available with NPT or Class 300 RF flanges
  • Approved by Underwriters' Laboratories (UL) for LPG and agricultural ammonia service
  • Hydraulic drive option available
  • Pump casing and heads: Ductile iron
  • Cam and sideplates: Gray iron
  • Rotor and flanges: Ductile iron
  • Seal seat: Silicon carbide
  • O-rings: Buna-N, PTFE, Viton®, Neoprene®. (Registered trademark of DuPont)
  • Blades: Advanced polymers
  • Self-adjusting sliding blades and blade drivers maximizes performance
  • Replaceable cam and sideplates and sideplates are reversible for twice the life
  • Removing the pump head gives full access to the internals without disturbing the piping
  • Can handle small amounts of vapor
  • The excellent suction lift is great for clearing suction and discharge lines
  • Internal relief valve is pre-set at the factory and is not adjustable
  • Agricultural ammonia
  • Butane
  • Propane
  • Natural gas liquids
  • Refrigerants
  • CO2
  • Many more liqueifed gases
  • Terminal
  • Bulk plant
  • Truck and Transport
  • Mobile (trailers & portable skid units)

Hydraulic Option for
Sliding Vane Pumps

  • Ideal for installations with limited space
  • Eliminates alignment issues
  • Forms a precise compact alignment
  • Available with the Z-model pumps only

Overview
When an electric motor drive is not the preferred option, there are alignment issues, or space is limited, a hydraulic drive is the solution. This option allows the user to mount a hydraulic motor directly to the pump forming a precise compact alignment. The hydraulic drive option is available on Z-Series pumps only. The lettter "H" shown in the model number (e.g. ZH2000) designates the hydraulic drive option.