Shijiazhuang Tech-macro Pump Industry Co.,Ltd

KNV Series Non-clogging Centrifugal Pump

Model:KNV Series
Head: 5~50m
Capacity: 4~2500 m³/h
Pump type: Non-clogging centrifugal pump
Media: Sewage, exhaust water, sludge, fruits, potatoes, beets, corns, cereals, fish etc.
Material: Metal

1. Description:

Series KNV pump is vertical, single-stage, end-suction, centrifugal pump.Series KNV non-clogging centrifugal pump is a new type, high-efficiency, energy-saving non-clogging pump made by our works based on the technology of German. The sizes of this series pump are from 80mm to 350mm in discharge. It has 11sizes and 2 types of installation; pit type and dry type both of which are nonsubmerged type of construction, and 11 kinds of bearing assembly to be matched.

Typical Application

Series KNV pump is designed for delivering non-abrasive liquid-solids mixture with particles and long fibres such as sewage and effluent treatment in city and factory or mine enterprises, whole of food transportation(fruits, potatoes, fish, beet and corms in food industry). It is also widely suitable for chemical, iron & steel , paper, environment protection industries and other branches.
2. Features:

● Series KNV pump has 2 types of impeller to be selected: 1”E” type impeller-standard, single-vane impeller; 2”E×” type impeller - passage -enlarged, single-vane impeller. Single-vane impeller features at wide passage, high efficiency, better non-clogging, strong winding resistance, and can delivery with no damage.
● Series KNV pump is back-disassembled construction, so the rotation parts of pump can be disassembled without dismantling suction&discharge pipes and casing , which simplifies maintenance.
● General stuffing shaft seal is adopted.
● The direct drive of elastic couplers is adopted.
1. Operating Limits:

Inlet diameter:80~400mm
Outlet diameter:80~350mm
Flow Capacity:4~2500m3/h
Head :5~50m

2. Material

Materials Options  
Construction Standard Optional
Casing Grey cast iron, ductile cast iron, nickel cast iron;
Stainless steel (SS304, SS3016…);
High chrome alloy (A05, A49, A61……);
The material adopted is usually based on the detailed application, or could be according to the customer’s requirements.
Other wet end parts (Impellers) Grey cast iron, ductile cast iron, nickel cast iron;
Brass, bronze;
Stainless steel (SS304, SS316…);
High chrome alloy (A05, A49, A61……);
Shaft Carbon steel(1045),
Stainless steel(2Cr13, 3Cr13)
Bracket Carbon steel

3. Performance Chart

Note: Approximate clear water performance, and only used for primary model choice.


Pit Installation
1 Pump casing  2 Impeller  3 Throat bush  4 Back liner  5 Suction elbow  6 Installation plate  7 Packing bush  8 Latern ring  9 Shaft sleeve  10 Packing  11 Bearing  12 Shaft

Dry installation
1 Pump casing  2 Impeller  3 Throat bush  4 Back liner  5 Suction elbow  6 Supporting base  7 Motor supporter  8 Shaft  9 Intermediate shaft  10 Driving shaft  11 Intermediate pipe  12 Installation plate  13 Bearing  14 Packing box