MDT - Open hopper metering pump

Designed to improve intake efficiency on highly viscous media

SEEPEX MDT range pumps are used to convey highly viscous media such as peanut butter, molasses, resins, and other media with low flowability. The open hopper on the pump directs media to the auger feed screw on the coupling rod which feeds the media into the rotor and stator.

Conveying Capacity
5–500 l/h
1.32–132 US gph
Pressure
24 bar
350 psi

Features and Benefits

Energy and time savings

Compression zone increases capacity of conveying chamber resulting in process time and energy savings

No vapor locking

Cavity design allows for conveyance of liquids, solids, and gases

Ease of operation

Valveless flow control for ease of operation

Performance efficiency

Low slip (internal back flow) provides performance efficiency and less wear on components

Easy maintenance

Simple and predictive maintenance due to minimal components

Technologies, accessories and options

Overpressure Protection

The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached and protects the pump from increased wear and tear or piping damage.

Dry running protection / TSE

TSE monitors the temperature of the rotating stator and shuts down the pump when the limit value is reached to protect the pump from dry running.

Standard gland packing

Universal seal for hopper and standard pumps for sealing the plug-in shaft and suction casing or feed hopper. Also available with grease or lantern ring to shut off the media flow. Can also be supplied with upstream labyrinth seal and additional flush connection or lubricating device.

Single-acting mechanical seal

Universal standard mechanical seal for dosing, food applications and semi-submersible pumps for sealing the plug-in shaft in the suction casing or the hopper.

Drive

Geared motors, variable speed drives or frequency controlled motors of all major manufacturers, directly flanged to the pump without additional couplings or guards. Covers made of stainless steel are available.

Base plate

Tailor-made selection of base plates. The base plates can be easily combined with different drives from all major manufacturers.

Shaft sealing

Single acting mechanical seal. Alternatively, a double acting mechanical seal or gland packing are available.

Plug-in shaft

Connects the drive shaft to the joint. With gland packing the plug-in shaft is used as a shaft protection sleeve. Upon request, it is available with wear resistant coating.

Plug-in shaft connection

For easy dismantling of the pump and drive enabling quick replacement of the rotating parts and shaft seals. The plug-in shaft pin secures the shaft connection to the drive and the splash ring protects the bearing from contamination/gland leakage.

Lantern

A corrosion resistant design, optionally made of stainless steel, connects the pump and drive and secures the assembly to the base plate or skid.

Open hopper

Rectangular feed hopper with conveying screw for pumping higly visous products.

Coupling rod

With two pin joints with hardened and wear resistant components, easily assembled, grease lubricated and positively sealed with elastomer sleeves and two holding bands.

Closed pin joint

With or without joint sleeve, which protects the grease-filled joints from penetration of the pumped liquid.

Stator

The seal on both ends is moulded as an integral part of the elastomeric stator. Corrosion of the stator tube is never a problem because the pumped liquid never comes into contact with the metal tube or the bonding adhesive.

Conventional geometry

With short pitches and a compact design, the conventional geometry produces high pressures.

6L geometry

With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.

Tricam geometry

The rotor with Tricam geometry features a three-helix geometry. This enables it to achieve larger conveying capacities with the same overall length of the pump.

Rotor

Wear resistant and corrosion-proof materials.

Conventional geometry

With short pitches and a compact design, the conventional geometry produces high pressures.

6L geometry

With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.

Tricam geometry

The rotor with Tricam geometry features a three-helix geometry. This enables it to achieve larger conveying capacities with the same overall length of the pump.

Stator adapter

In stainless steel, enabling the use of all sizes of rotor/stator giving inter- changeability with only one housing and drive unit.