Specification of

Twin Screw Rotary Pump API 676

3P PRINZ Positive Displacement Twin Screw Pump design as per Manufacturer standard or comply with Rotary Positive Displacement API 676 latest edition.  The construction either One or Two Pairs of Screws, which operate without being in contact with each other, ensure a constant flow, pulsation-free, together with a high suction lift capability with very low NPSHr values.

 Horizontal Installation is supplied as standard while Vertical Installation is supplied on request. External timing gears type is supplied as Standard while Internal Timing gears are supplied on request, in the case of the pumped fluid is sufficiently clean and lubricating.

 TWIN SCREW MAIN ADVANTAGES: 

·         Self-Priming

·         They ensure a constant flow, pulsation free

·         High suction lift capability - the pump NPSHr being very low up to 1.5 m

·         Very well suited to pump fluids with low, medium, high and very high viscosity, sensitive to shear forces and turbulence thanks to the low of Internal Velocity given by the screw movement.

·         Low Noise Level and Low Vibrations

·         The screws are contactless thus wear out is minimized.

·         Flow can be reversed (reversibility) in low pressure applications, upon request

·         Entrapped Air or Gas in the Liquid are tolerated up to 50-60% volume (multi-phase service on request)

·          Capability of Dry Running for a limited period and in particular conditions

·         Compact Design and Dimensions

GENERAL PERFORMANCES:

·         Capacity: from 1 m3/h up to 3.500 m3/h   [from 4.5 GPM up to 15,500 GPM]

·         Casing Pressure: up to ANSI 900 - 149 barg [2160 Psig]

·          Differential Pressure: up to 60 bar [870 Psi]

·         NPSHr: down to 1,5 meters [5 ft]

·          Viscosity: from 0,5 cSt up to 50.000 cSt (up to 250.000 cSt in special execution)

·         Pump Noise Level: up to 85 dB for small and medium sizes

·          Gas / udara Handling: Gas/Air Content up to 50% (dissolved, not slug)

·         Temperature: up to 300°C [573°F]

 MAIN APPLICATIONS:

·         Palm Crude Oil

• FUEL PUMP

·         Hydrocarbon Fluid Handling:     

-       Crude Oil (Raw or Refined)

-       Crude Oil Mixed with Water

-       Crude Oil Mixed with Water and Gas

-        All type of Hydrocarbons, Light and High Viscosity (From Gasoline to Bitumen)

-       Oil / Water Emulsions including Slop, Produced Water

-       Chemicals (Methanol, Inhibitor) 

 Twin Screw Rotary Pump API 676 - Fuel Pump