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High pressure low shear rate pump (L-series)

The L-series pump is ideally suited for high-pressure flow of shear rate-sensitive fluids. The device mainly consists of a rotor, i.e. a magnetically motor-driven helical screw tightly housed in a twin helix stator. Fluid enters through the inlet and travels to the outlet via the fixed-size cavities. The latter move as the screw rotates but their shape or volume remain constant. Flow rate is mainly proportional to motor speed. The curved, discrete helical fluid trajectory optimizes laminar flow conditions by virtue of its low cross sectional area and low friction coefficient. A non-turbulent flow regime becomes critical when transferring non-Newtonian fluids; e.g. drilling fluids, high viscosity oil… These fluids’s viscosities and solid deposition rate are functions of the shear rate imposed on them. The laminar conditions generated by the L-series help preserve the fluid’s integrity. The device is provided with a control panel and can communicate with a computer. Several models are available depending on the pressure, flow rate, fluid nature and connection type requirements.

FEATURES:

 

Model

 

Max flow rate
(L/min) 

Max pressure
(psi) 

Wetted part

 Connection
 (inch)

L 2000-200-S-1

2

20,000

Stainles steel

1"

L 2000-200-H-1

2

20,000

Hastelloy

1"

 

 
COMMON FEATURES:

Temperature range:
up to 200°C
Viscosity Range: up to 100 cP
Differential Pressure: 15 psi
Motor speed: up to 4,000 RPM
Power: 110-220 VAC, 50/60 Hz 


APPLICATIONS:

* Can be used to circulate any liquids in a closed circuit at reservoir temperature and pressure conditions such as wax deposition flow loops
* Recirculate non-Newtonian reservoir fluid in asphaltene deposition flow loop where low shear rate is required to avoid solid deposit and viscosity change


BENEFITS:
 
* Corrosion free wetted parts
* Low shear rate pump
* Minimized turbulent flow and maximized laminar flow
* Continuous, pulseless flow
* No dynamic seal leaks
* Lower power consumption
* Increase maximum system pressure
* Minimize the risk of contamination