centrifugal pump vs reciprocating pump

MXQ Progressive Cavity Pumps

MXQ progressive cavity pumps are self-priming, positive displacement pumps, which are used for pumping a wide range of liquids including highly viscous, aggressive fluids with entrapped air, or neutral fluids, or fluids with fiber and solid content. Our pump designs are designed for low to high flow applications, with various pressure handling requirements.

MXQ progressive cavity pumps consist of two parts; the rotating eccentric screw and the stationary stator. The rotor conveys the medium with low pulsation and vibration through the stator. The pump materials of construction will be based upon the application.

Design:

The following are salient innovative design features of the MXQ progressive cavity pump

Elongated Profile Rotor and Stator: The overall diameter of the rotor and stator is decreased, whereas the pitch is increased. The performance and shelf life of the progressive cavity pump depends on the surface speed at the periphery of the rotor against the stator. This speed is termed as rubbing velocity, which can minimize the life expectancy of the pump’s rotor and stator. All MXQ progressive cavity pumps are designed to have low rubbing velocities, which has improved their life by 40% than standard pumps available in the market.

The elongated profiles have helped minimize thrust loads on the bearings and joints, reduce starting torque requirements, as well as shearing on the load.

Universal Cardan Joint (3-year Warranty): During the operation, the progressive cavity pump’s rotor has three different centers of rotation. As the centerline of the rotor is offset from the centerline of the drive shaft, a drive connection cannot be made easily. This type of connection is established using a flexible type drive. In many progressive pump designs, this flexibility is achieved using a pin joint or a gear joint. However, in MXQ progressive cavity pumps, the hollow shaft utilizes the Universal-Cardan joint design. This joint helps minimize the dependence on hollow tube configuration, improves angularity, as well as reduces the required length of connecting rods.

Universal joint used in MXQ progressive cavity pumps is lubricated with synthetic temperature stable lubricant, and is offered with a 3-year warranty.

PERFORMANCE:

Capacity up to 1,400 gpmDifferential pressure up to 360 psi1 stage: 90 psi2 stages: 180 psi4 stages: 360 psiOperating temperature up to 356° FViscosity up to 1,000,000 cS

APPLICATIONS:

WastewaterPaperPaintCrude OilFood/Beverage WasteAsphaltChemical InjectionSlurryDrilling FluidsBallast WaterCalcium CarbonateTall Oil

The MXQ Bornemann® equivalent EH model is our most versatile, robust progressive cavity pump that we offer. It is most commonly used for low or high viscous media and has the capability to pump anything from wastewater sludge to highly acidic media. Almost any type of driver can be used to drive these pumps. Its standard features, such as its elongated profile and heavy duty cardan joints gives it the advantage over the other competitors in the industry. When reliability, low maintenance, and optimum productivity are the desired result, then the MXQ EH model is your solution.

FEATURES:

Elongated ProfileStandard Cardan JointsBest used for pumping viscous media

The EL close-coupled pumps are shorter in length, compared to the EH pumps. In the close-coupled design the pump shaft bypasses the use of a bearing housing and connects directly to the driver. This design not only eliminates the need for a base plate, but is also much more space efficient. These pumps are suitable for neutral or aggressive media, with thin or high viscosity.

FEATURES:

Compact designEliminates need for base plate

If you have a requirement of handling heavy, or extremely viscous fluids, then the ER open hopper pumps are an ideal match. As their name suggests, these pumps feature an open hopper and auger feeder.

FEATURES:

Open suction hopper designFor highly viscous sludge/slurryCan pump up to 60% solids