Slurry Pump Metal Expeller

Slurry Pump Metal Expeller

Introduction:

The expeller is in effect, a secondary impeller positioned behind the main impeller, housed in its own seal chamber, close to the main pump casing. Operating in series with the impeller back shroud pump out vanes, the expeller prevents the liquid from leaking out of the stuffing box, ensuring a dry seal. [This dry seal is achieved because the total pressure produced by the pump out vanes and the expeller, is greater than the pressure produced by the main pumping vanes of the impeller plus the inlet head". Stuffing box pressure, with a centrifugal seal, is therefore reduced to atmospheric pressure.

Summary of Advantages:

No flush water required; No dilution by flush water; Reduced maintenance of packings; Zero gland leakage during operation.

A brief introduction of the slurry pumps we offer: 
Slurry Pump Series: 
1. Metal Lined Slurry Pump, SH Type; 2. Rubber Lined Slurry Pump (SHR Type); 3. Hi-Pressure Slurry Pump (SBH Type); 
Gravel Pump Series: 
1. Hard Metal Sand Pump (SG, SHG Type); 2. WN Dredging Pump (WN Type); 
Sump Pump Series: 
1. Metal Vertical Slurry Pump (SV Type); 2. Rubber Vertical Slurry Pump (SVR Type);
Local Pump Series: 
1. Power Plant Slurry Pump (ZBG Type); 2. Coal Washing Slurry Pump (ZJ Type); 
Froth Pump Series
 

Slurry Pumps with Expeller Seal: