Sulman A43-350 Paper Pulp Pumps Description
Sulman A43-350 pump is a single-stage end-suction centrifugal process pump that can be used in the pulp and paper industry for handling process liquids, white water, filtrate, chemicals, and some fiber-containing fluids. A43-350 pumps are designed for demanding industrial applications including pulp, paper, board, mining, chemical, and bio-product industries.
A Series Pump type:
Main purpose: Transfer and circulate clean liquids, process fluids, water, and some mildly contaminated liquids.
Sulman A43-350 Pulp Pumps Advantages in Paper Industry
Sulman A43-350 pumps are part of the A series process pumps, are widely used in pulp and paper processes because it provides reliable, efficient, and maintainable pumping of process water, white water, filtrate, chemicals, and low-consistency fiber suspensions.
1. High Reliability for Continuous Paper Production with Reliable 24/7 operation
2. Energy-efficient hydraulic design
3. Good Handling of Fiber-Containing Liquids: Low-consistency pulp, White water, Recycled fiber systems
4. Easy maintenance with back pull-out design
5. Wide Material Selection for Different Paper Processes, materials with Cast iron, Stainless steel, Duplex stainless steel, Special alloys etc for Bleaching plants, Chemical preparation, Wastewater systems.
6. Low Maintenance Cost
7. Flexible Application Range, A43-350 pumps can support many paper mill processes.
Sulman A Series Paper Process Pumps Models
| Size | Pump Models | Applications |
| Small Series | A10-32, A10-50, A10-65, A11-32, A11-40, A11-50 | smaller flows, lower head — local transfer, smaller process lines |
| Small-to-Medium Series | A20-65, A20-80, A21-65, A21-80, A21-100, A22-32, A22-40, A22-50, A22-65, A22-80, A23-40, A23-50 | smaller flows, lower head — local transfer, smaller process lines |
| Medium Series | A31-100, A31-125, A31-150, A32-65, A32-80, A32-100, A32-125, A33-80, A33-100, A33-125 | mid-range duties — typical plant process pumps |
| Medium-to-Large Series | A41-200, A41-300, A41-400, A42-150, A42-200, A43-250, A43-350, A43-500, A44-150, A44-200 | mid-range duties — typical plant process pumps |
| Large Series | A51-250, A51-300, A51-400, A51-500, A53-100, A53-150, A53-200, A53-250, A53-300, A53-400, A55-100, A55-200, A55-250, A55-300 | large flow/high head — main process lines, larger mills or plants |
| Extra-Large Series | A60-500, A60-600, A63-400, A63-500, A63-600, A63-700, A71-250, A71-300, A71-400, A71-500, A71-600, A72-300, A72-400, A72-500, A72-600 | large flow/high head — main process lines, larger mills or plants |

Sulman A43-350 Paper Pumps in Paper Production Areas
They are especially suitable for kraft mills, tissue mills, packaging paper plants, and recycled paper factories where reliable process pumping is required.

Sulman A43-350 Pumps for Chemical Processing Plants
1. Chemical Transfer Applications
Storage tank → process unit transfer pumps
Chemical unloading systems pumps
Chemical circulation loops pumps
Dosing system supply pumps
2. Reactor Feed & Circulation Systems
Reactor feed circulation pumps
Mixing tank circulation pumps
Reaction process liquid transfer pumps
Heat exchanger circulation pumps
3. Fertilizer & Inorganic Chemical Plants
Phosphoric acid processing
Sulfuric acid-related systems (with proper materials)
Fertilizer solution transfer
Ammonium-based chemical circulation
Process water systems
4. Pharmaceutical & Fine Chemical Production
Intermediate chemical transfer
Solvent circulation
Washing liquid transfer
Filtration systems
Process water circulation
5. Wastewater & Effluent Treatment in Chemical Plants
Neutralization systems
Wastewater transfer
Flocculation systems
Recovered chemical solutions
Industrial water circulation
Sulman A43-350 Paper Pumps Spares Parts
| Pos. No | Pump Part Name | Description |
| 102 | Pump casing / Volute casing | Main pressure-containing casing |
| 135 | Side plate / Wear plate | Protects casing from wear |
| 161 | Casing cover | Cover for pump chamber |
| 183 | Support foot | Pump support component |
| 210 | Shaft | Rotating shaft assembly |
| 230 | Impeller | Main hydraulic rotating part |
| 320 | Bearing | Shaft support bearing |
| 330 | Bearing housing | Bearing support assembly |
| 344 | Lantern / Adapter | Seal and bearing connection part |
| 400 | Seal set | Mechanical seal or sealing elements |
| 412 | O-ring / Seal ring | Static sealing parts |
| 423 | Labyrinth ring | Bearing protection |
| 451 | Stuffing box housing | Seal chamber housing |
| 456 | Bushing / Shaft sleeve | Shaft protection sleeve |
| 471 | Seal cover | Mechanical seal cover |
| 502 | Wear ring | Casing/impeller wear protection |
| 507 | Deflector | Prevents contamination entering bearing |
Sulman A Series Pumps Compared with Other Series Pumps
| Series | Main Design Purpose | Best Applications | Main Advantage |
| A | More demanding chemical/process liquids, General industrial process pump | Chemical, pulp & paper, water, biofuel, general process liquids | High efficiency, wide hydraulic range |
| APP/T | Liquids with solids and fibers Process pump for more demanding liquids | Chemical, pulp, mining, fibrous liquids | Handles more difficult process media |
| NPP/T | Non-clogging pump | Liquids containing large solids, fibers, sludge | Prevents blockage |
| WPP/T | Wear-resistant pump | Abrasive slurry, lime milk, mud, pigments | Higher wear resistance |
| EPP/T | High-temperature pump | Hot liquids, thermal processes | Designed for high-temperature duty |
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No. 266, Tianshan St, High-tech Zone, Shijiazhuang City 050000, China.