BA Chemical Process Pump – BB3 Type

(Between-bearings, Radially Split, Multi-stage Pump)

Jiangsu Haifa Machinery Manufacturing Co., Ltd.

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I. Product Overview

The BA series chemical process pumps (BB1~BB5) are high-efficiency centrifugal pumps developed by Jiangsu Haifa specifically for petrochemical, coal chemical, power, seawater desalination, and general industrial applications.
Among them, the BB3 type is a between-bearings, radially split, multi-stage volute centrifugal pump, suitable for medium-to-high head, medium flow rate, and continuous heavy-duty media transfer.

The BB3 type features stable construction, low vibration, and easy maintenance, making it especially suitable for high-temperature, high-pressure, or clean/corrosive liquids containing slight particles.

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II. Product Features

• Between-bearings design: Rolling/sliding bearings support both ends of the rotor for smooth operation under high-head conditions.

• Radially split casing: Allows inspection or replacement of internal rotor without dismantling piping, facilitating easy maintenance.

• Multi-stage impellers in series: Achieves high head while maintaining high efficiency.

• Centerline mounting: Uniform thermal expansion, suitable for high-temperature conditions (up to 400°C+).

• API 610 compliant: Optional compliance with 11th edition, suitable for severe petrochemical and similar services.

• Multiple material combinations: Wetted parts available in 304, 316L, duplex stainless steel, titanium, Hastelloy, etc., suitable for acids, alkalis, solvents, hydrocarbons, and more.

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III. Technical Parameter Range (Typical Values)

Parameter	Range
Flow rate	Up to 800 m³/h
Head	Up to 800 m
Temperature	-40°C ~ +400°C
Pressure	Up to 10 MPa (higher optional)
Speed	1450/2980/3600 rpm
Number of stages	2 ~ 12 stages

Note: Specific parameters subject to actual selection.

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IV. Applicable Media

• Petrochemical: Hydrocarbons, oil products, LPG, solvents

• Coal chemical: Hydrocarbons, ash water (with wear-resistant options)

• Fine chemical: Acids, alkalis, salt solutions

• Hot oil, boiler feed water

• Seawater desalination, reverse osmosis feed water

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V. Structural Components

Component	Description
Casing	Radially split, double volute or diffuser type
Impeller	Closed type, dynamic balance grade G2.5
Shaft	High-strength alloy steel, stainless steel optional
Bearings	Radial + thrust bearings (oil bath / oil mist lubrication)
Shaft seal	Mechanical seal (single/double/tandem, API 682 compliant)
Coupling	Diaphragm or pin type

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VI. Application Examples

• Refinery: Bottom pump, feed pump

• Fertilizer plant: High-pressure carbamate pump

• Power plant: Boiler feed pump

• Chemical plant: High-temperature thermal oil pump

• Water treatment: RO high-pressure feed pump

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VII. Sizing & Customization Notes

Jiangsu Haifa can provide:

• Custom hydraulic performance

• Corrosion/wear resistant material upgrades

• High/low temperature structural optimization

• Explosion-proof motor and monitoring system integration

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VIII. Why Choose Jiangsu Haifa BB3 Type?

• High reliability: Suitable for over 3 years of continuous operation without major overhaul

• High efficiency: Excellent hydraulic model, significant energy savings

• Low maintenance cost: Rotor can be removed without dismantling piping

• Local service: Fast response, timely spare parts supply

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