Andman FP40-400 Paper Pulp Pumps Design Features
FP40-400 pumps in FP series with high efficiency and low pulsation characteristics, making it suitable for paper machine approach flow systems.
Andman FP Series Paper Pulp Pumps Designs:
1. Double suction impeller
Benefits:
Lower axial thrust
Better hydraulic balance
Higher efficiency
2. Split-case structure
Benefits:
Easy maintenance
Pump can be serviced without removing pipe connections
Suitable for continuous operation
3. Low pulsation hydraulic design
Important for paper machines because pressure fluctuation can affect:
Paper thickness
Fiber distribution
Sheet quality
Andman Common FP Paper Pump Models:
FP25-300
FP32-350
FP40-400
FP50-500
FP60-600
Example: FP40-400
Typical application:
Paper machine fan pump
Fine paper production
Low consistency pulp
Example operating data:
Flow: around 1,800 m³/h
Head: around 20 m
Speed: around 1,000 rpm
Consistency: around 2%
Andman FP40-400 Paper Stock Pumps Spare Parts
Rotating Parts
Impeller
Shaft
Shaft sleeve
Key
Coupling
Bearing Components
Bearing housing
Bearings
Bearing cover
O-rings / gaskets
Wear & Sealing Parts
Mechanical seal or packing set
Wear rings
Casing gasket
O-rings
Hydraulic Parts
Pump casing (upper/lower casing)
Suction/discharge casing components
Impeller nut
Andman FP series pumps compared with ACP series pumps
| Item | FP Pump | ACP Pump |
| Type | Double suction split case pump | End suction centrifugal pump |
| Main industry | Mainly pulp & paper | General industry, pulp, water, chemical |
| Medium | Paper stock | Water, contaminated liquid, pulp |
| Impeller | Special pulp impeller | Closed/open options |
| Main duty | Fan pump / headbox supply | Process pumping |
| Pulsation requirement | Very low pulsation | Normal |
FP40-400 Paper Machine Fan Pump
FP pump supplies diluted pulp stock from the approach flow system to the headbox.
Typical duties:
Headbox stock supply
Paper machine approach flow
Cleaner system circulation
Low consistency pulp pumping
Advantages:
Stable pressure
Low pulsation
Uniform fiber distribution
Improved paper quality
FP Series Pumps in Pulp & Paper Stock Circulation
Applications:
Bleached pulp circulation
Mechanical pulp circulation
Recycled fiber systems
White water circulation
Fiber recovery systems
FP pumps are suitable for:
Fiber-containing liquids
Low-consistency pulp suspension
Large flow paper production systems
What Andman FP40-400 Pumps do for us in Paper Pulp Industry？
1. Provide Stable Stock Flow to the Paper Machine
The most important role of FP40-400 is as a fan pump (headbox pump).
Transfer diluted pulp stock from the machine approach system to the headbox
Maintain stable flow and pressure
Support uniform fiber distribution
Improve paper sheet formation
A stable fan pump is essential because fluctuations in stock flow can affect:
Paper thickness
Formation quality
Production stability
2. Improve Paper Quality Through Low Pulsation Operation
FP40-400 is designed specifically for pulp suspension pumping.
It helps:
Reduce pressure fluctuations
Deliver smoother stock flow
Maintain stable headbox conditions
Improve final paper quality
This is especially important for:
Fine paper
Tissue paper
Packaging paper
Board production
3. Handle Pulp Stock Efficiently
FP40-400 can be used for:
Headbox pumping
Cleaner system pumping
Stock circulation
4. Reduce Maintenance Downtime
The split-case design provides:
Easy access to rotating components
Easier inspection and repair
Shorter maintenance time
Higher equipment availability
Andman FP40-400 Pumps can be used in such projects
1. New Paper Plants
Application:
New kraft paper mills
Fine paper mills
Tissue paper mills
Packaging paper mills
Board and carton production lines
Pump duty:
Paper stock circulation
Headbox feeding
Approach flow system circulation
Paper Machine Expansion Projects
2. Kraft Paper Production Projects
3. Pulp Mill Integrated Paper Projects
4. Paper Mill Upgrade / Replacement Projects
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+86 311 8722 1317
No. 266, Tianshan St, High-tech Zone, Shijiazhuang City 050000, China.
