Gear Pumps Series N, NE, ND
Description
Gear pumps of the N, NE and ND series are Iow-pressure pumps for transferring mineral oils and other self-lubricating liquids without abrasive constituent contents. These pumps are operating within a viscosity range from 10 to 2500 mm²/s and with pressure increases up to 16 bar. They are robust, long-life and proven models, and due to the characteristics in construction they are also suitable for transferring high-temperature liquids.
Design
Housing parts in standard design of grey cast (optionally GGG40/Gbz/GSE); feed wheels and shafts of annealed steel, shaft journals hardened and ground, feed wheels fitted with corrected helical gearing for noiseless running.The arrangement of exchangeable bearing inserts, pushed into the housing and fitted with compound bearing bushings, effects resistance of this pump to temperature deviations of the transfer medium.
Connecting flange according to DIN.
Series N |
Constr. size: |
N 00/25 - 5/245 |
Flow volume: |
13 - 950 L/min |
Pressure range: |
up to 16 bar |
Series NE |
Constr. size: |
NE 4/190/6 - NE 5/285/6 |
Flow volume: |
855 - 1950 L/min |
Pressure range: |
up to 10 bar |
Series ND |
Constr. size: |
ND 5/170/11 - ND 5/240/6 |
Flow volume: |
1140 - 4000 L/min |
Pressure range: |
up to 10 bar |
Structural Types/Forms, Aggregates
Available in standard design, sense of rotation right or left. Optionally available with changing sense of rotation but constant flow direction (applicable only to series N and NE).
Shaft sealings - stuffing box, radial sealing ring, glide ring sealing.
Optionally available with:
Integrated safety valve, adjustable;
heating chamber, base frame, intermediate lantern, post as well as pertaining drive unit.
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