Jiangsu Haifa Machinery Manufacturing Co., Ltd.

 Product Series: BA Series Chemical Process Pump (Complies with API 610 11th Edition)
 Sub-Series: High-Flow BB2 Type (Radially Split, Between-Bearing Support)

 I. Product Overview

Jiangsu Haifa Machinery Manufacturing Co., Ltd. produces the BA Series BB2 pump, a high-flow, single-stage or two-stage, radially split, between-bearing support chemical process pump strictly designed and developed in accordance with API 610 (American Petroleum Institute Standard) 11th Edition.

This pump is specifically designed for continuous heavy-duty operation under high-temperature, high-pressure, and high-flow conditions. It is an ideal choice for transporting clean or slightly contaminated liquids in petrochemical, coal chemical, power, seawater desalination, and general industrial fields.

 II. Model Description

Example: BA 200400 BB2

 BA: Chemical process pump series code
 200: Pump inlet diameter (mm)
 400: Impeller nominal diameter (mm)
 BB2: Construction type (Radially split, between-bearing support, centerline mounted)

 III. Performance Range

Parameter	Range
Flow Rate (Q)	Up to 4000 m³/h (Core advantage: high flow)
Head (H)	Up to 350 m
Temperature (T)	-40℃ ~ +450℃
Max. Working Pressure	5.0 MPa (Up to 10.0 MPa with special design)
Speed (n)	1450/2980/3600 r/min (with variable frequency motor)

 IV. Structural Features (Core Advantages of BB2 Type)

 1. Heavy-Duty Structural Design
 Centerline Support: Pump support feet are located on the pipe centerline, ensuring uniform thermal expansion under high temperatures and avoiding shaft misalignment.
 Radially Split Casing: The pump casing is horizontally split along the shaft centerline. The rotor can be accessed for maintenance by removing the pump cover, offering convenience.

 2. High-Efficiency Hydraulic Model
 Utilizes CFD-optimized high-efficiency double-suction or single-suction impellers (selected based on parameters), ensuring stable operation in high-flow regions and low Net Positive Suction Head required (NPSHr).
 Precise clearances between impeller and casing result in low volumetric losses, with efficiency 5%~8% higher than national standards.

 3. Reliable Shaft Seal and Bearings
 Shaft Seal System: Equipped with cartridge mechanical seals compliant with API 682. Flushing plans such as Plan 11/21/23/52/53A can be selected based on the medium.
 Bearings: Heavy-duty radial roller bearings + thrust angular contact ball bearings combination, with forced oil or oil ring lubrication, and online temperature/vibration monitoring interfaces.

 4. High-Temperature and Corrosion-Resistant Materials
 Casing, Cover, Impeller: Can be selected from Carbon Steel WCB, 304, 304L, 316, 316L, Duplex Stainless Steel CD4MCu, Hastelloy C276, etc., based on operating conditions.
 Wear rings and shaft sleeves are surface-hardened (Hardness ≥ HRC 55) to extend service life.

 V. Applicable Media

 Petrochemical: Crude oil, refined products, LPG, base oil, benzene, alcohols, etc.
 Coal Chemical: Slurry, black water, grey water (special wear-resistant type)
 General Industry: Hot water, condensate, circulating water, seawater desalination
 Fine Chemical: Acid, alkali, salt solutions, and organic solvents

 VI. Product Advantages (BB2 vs. Traditional Overhung Pump)

Comparison Item	Traditional OH Type Overhung Pump	Jiangsu Haifa BB2 Pump
Flow Adaptability	≤800 m³/h	≤4000 m³/h
Temperature Deformation Control	Poor, prone to thermal expansion seizure	Centerline support, good thermal symmetry
High Power Capacity	Short bearing life	Between-bearing support, double the load capacity
Maintenance Convenience	Requires piping removal	Lift pump cover, no need to disturb piping
Standard Compliance	Non-standard or light-duty	Fully compliant with API 610 11th Ed.

 VII. Technical Drawings & Installation Dimensions (Brief)

Note: Please refer to our official drawings for specific overall dimensions, baseplate drawings, inlet/outlet orientations, and flange standards (HG/T 20615 or ASME B16.5).

 Drive Method: Direct coupling, diaphragm coupling
 Rotation Direction: Clockwise when viewed from drive end (standard, counterclockwise customizable)
 Protection Grade: IP55/IP65
 Insulation Class: Class F / Class H

 VIII. Scope of Supply

Standard supply includes:
1. BA BB2 pump body (including coupling guard)
2. Baseplate (welded steel structure)
3. Coupling
4. Mating flanges and anchor bolts
5. Mechanical seal and API 682 piping system (as per contract)
6. Spare parts (seals, shaft sleeve, wear rings)
7. Installation, operation, and maintenance manual

 IX. Quality Control & Certifications

 Design Standard: API 610 11th / ISO 13709
 Hydrostatic Test: 1.5 times design pressure, hold for 30 minutes without leakage
 Performance Test: Performance, NPSH, vibration, and noise tests per ISO 9906 Grade 2
 Certification: ISO 9001:2015; third-party inspection available (BV, SGS, TÜV, etc.)

 X. Application Case Brief

Project: Circulating water system of an ethylene plant in a large petrochemical company
Model: BA 350500 BB2
Parameters: Q=3200 m³/h, H=45 m, T=60℃, Medium= Circulating water
Result: Over 18,000 hours of continuous trouble-free operation; 3% higher efficiency than original imported pump; saves approx. 300,000 kWh of electricity annually.

If you need detailed documentation for different sub-series such as BB1 (Axially Split), BB3 (Multi-stage Between-Bearing), BB4 (Radially Split Multi-stage), BB5 (Barrel Casing), or need to add specific product dimension tables or selection flowcharts, please let me know.

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