Self Priming Trash Or Waste Water Pumps

by: Justin Kitson


Self-priming trash pumps are designed for heavy-duty de-watering use. In this article we will take a look at the applications, specifications, features and semi-trash pump models available.

A trash pump employs the deepest impeller vanes to produce the largest discharge capacity, incorporated with a large volume discharge opening to pass water containing suspended sticks, stones & debris without clogging or harming pump components.

Pumps with 3” and 4” pipe diameters are designed to suck up to 31 mm diameter trash. Pumps with 2” pipe diameter are designed to such up to 20 mm. Diameter trash. The biggest distinguishing factor between normal clear water pumps and self-priming trash pumps, is the fact that trash pumps are designed up to 31 mm solids in diameter versus 10 mm solids in the case of clear water pumps.

Applications:
Multiple purpose de-watering
General purpose de-watering
Constructions sites
Pumping municipal sewage
Agricultural use

Specifications:
Self-priming trash pumps contains 3 distinguishing elements:

1. Casing
a. Big to improve reparative ability of air and water
b. Removable without using tools

2. Impeller – consisting of 2 blades
Strainer – hole diameter is designed to prevent debris from locking the impeller.

3. Trash pump strainer:
Trash pump strainers vary between φ25 and φ30

Trash pump model summary:
PTG 205T
Pump size: 2.0 inch
Engine: EY20D (Gasoline)
Total head: 27m
Delivery volume: 750 l/min

PTG 305T
Pump size: 3.0 inch
Engine: EY28D (Gasoline)
Total head: 28m
Delivery volume: 1800 l/min

PTG 405T
Pump size: 4.0 inch
Engine: EY40D (Gasoline)
Total head: 23m
Delivery volume: 2000 l/min


About The Author

Justin Kitson is Manager at Goscor Engines and forestry. Details about Trash pumps are available at: http://www.engines-forestry.co.za/html/self-priming-trash-pump.html