HR / HRV

3P Prinz Pera-Prinz HR / HRV high-capacity twin-screw pumps: externally supported rotary positive displacement pumps with one or two pairs of non-contacting screws, giving a constant, pulsation-free flow with high suction capacity and very low NPSH. For transferring low to very high viscosity fluids free of suspended solids. Flow rate up to 3,000 m³/h (13,208 GPM), pressure up to 14 bar, viscosity up to 35,000 cSt, 200 to 2,200 rpm, temperature -46 to +300 °C. Horizontal (HR) and vertical (HRV) versions.

Key technical parameters

• Flow rate: up to 3,000 m³/h (13,208 GPM)
• Pressure: up to 14 bar
• Fluid temperature: -46 to +300 °C
• Viscosity: up to 35,000 cSt
• Shaft speed: 200 to 2,200 rpm
• Installation: Horizontal (HR) or vertical (HRV)
• Drive: Electric motor (ATEX, UL, NEMA versions; diesel on request)
• Screws: integral or reported; external bearings with permanently greased rolling bearings; oil-bath timing gears
• Seal: single or double mechanical seal or packing, with heating or cooling
• Pump body with heating or cooling chamber; integral or with reported liners
• Material: Cast iron, stainless steel, duplex and super duplex, Inconel, Hastelloy, nickel-aluminium bronze
• Standards: CE, ATEX; API 676 on request

Media handled

• Liquids: Crude oil, Fuel oil, Diesel, Lubricating oil, Bitumen, Resin, Latex, Solvent, Vegetable oil, Molasse
• Media properties: Low viscosity, High viscosity

Applications and industries

• Chemical: acids, resins, latex, solvents, paints, polyester
• Petrochemical: crude oil, fuel oil, bitumen, tar, lubricating oil
• Food: chocolate, edible fats, molasses, syrups, vegetable oils
• Marine and shipbuilding: tanker cargo, lubricants, bilge water