Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Product Series: Eco-Friendly Forced Circulation Pump

I. Product Overview

Independently developed by Jiangsu Haifa Machinery Manufacturing Co., Ltd., the Eco-Friendly Forced Circulation Pump is designed for applications in chemical processing, evaporation crystallization, environmental water treatment, salt production, pharmaceuticals, and seawater desalination. Designed for forced circulation conditions involving high-concentration, particle-laden, easily crystallized, and high-temperature corrosive media, this pump series ensures efficient transportation while significantly reducing energy consumption and meeting stringent environmental emission requirements.

The product strictly adheres to national and industry energy-saving standards. Through optimized hydraulic modeling and structural design, it achieves low NPSHr, high head coefficient, and long operational life, helping customers achieve industrial upgrades under the "dual carbon" goals.

II. Product Models & Structural Types

This series offers three installation types to suit different process layouts and space requirements:

Type	Model Code Example	Applicable Scenario
Horizontal	HJW (Haifa Forced Circulation Horizontal)	Floor-mounted, suitable for low-ceiling workshops, easy maintenance
Vertical	HJL (Haifa Forced Circulation Vertical)	Compact layout, submerged installation, saves floor space
Suspended	HJX (Haifa Forced Circulation Suspended)	Directly suspended from evaporator top or side wall, foundation-less installation

III. Core Technical Features (Conservation & Environmental Protection)

1. High-Efficiency Energy-Saving Design

• Three-dimensional flow hydraulic model: Optimized using CFD (Computational Fluid Dynamics), pump efficiency is 8%~15% higher than conventional axial/mixed flow pumps.

• Low NPSHr (Net Positive Suction Head required): Special impeller design provides excellent cavitation resistance, allowing stable operation at lower liquid levels and reducing suction loss.

• VFD compatibility: The entire series supports variable frequency drive, automatically adjusting flow rate based on process demands, eliminating unnecessary energy consumption.

2. Environmentally Friendly Structural Features

• Zero leakage sealing: Equipped with cartridge mechanical seals (API 682 optional) and auxiliary flushing system, ensuring zero external leakage of the medium, protecting soil and water sources.

• Long-term maintenance-free operation: Heavy-duty bearing housing and oil bath lubrication design enable continuous operation for ≥ 8000 hours, reducing oil change frequency and hazardous waste generation.

• Low noise operation: Optimized volute and impeller clearance results in operating noise ≤ 85 dB(A), improving the working environment.

3. High Corrosion & Wear Resistance

• Wetted parts material options: 316L, 2205 Duplex Steel, 2507 Super Duplex Steel, Titanium, Hastelloy.

• For solids-containing media (≤30%), the impeller and liner plates feature wear-resistant coatings or carbide inlays.

IV. Detailed Parameters & Advantages by Type

1. Horizontal Forced Circulation Pump

• Size Range: DN150 ~ DN800

• Flow Range: 100 ~ 8000 m³/h

• Head Range: 2 ~ 10 m (up to 15m with special design)

• Features:

• Horizontal inlet and outlet for simple piping layout.

• External bearing housing for easy temperature monitoring and maintenance.

• Suitable for high-flow, low-head circulation applications (e.g., evaporative circulation, external reactor circulation).

2. Vertical Forced Circulation Pump

• Submersion Depth: 500 ~ 4000 mm (customizable)

• Flow Range: 50 ~ 5000 m³/h

• Features:

• Motor mounted on top, pump body submerged, no priming required.

• Saves floor space, ideal for direct pumping from tanks, basins, or evaporator chambers.

• Submerged bearings use self-/medium-lubrication, no external cooling water needed.

3. Suspended Forced Circulation Pump

• Installation Method: Flange suspended from the evaporator's downcomer pipe or side wall

• Flow Range: 200 ~ 6000 m³/h

• Features:

• Foundation-less, no anchor bolts; rigid connection directly to process equipment.

• Thermal expansion compensation design: accommodates pipe thermal elongation under high temperatures (≤200°C).

• Specifically developed for MVR evaporation systems and multi-effect evaporator forced circulation; self-balancing axial force prevents vibration transmission.

V. Typical Application Scenarios (Environmental & Energy-Saving Contributions)

Industry	Specific Application	Energy Saving / Environmental Benefit
High-salinity wastewater treatment	Zero Liquid Discharge (ZLD) evaporation concentration, MVR forced circulation	Saves 20% electricity compared to conventional pumps; eliminates mother liquor discharge
Chlor-alkali / Salt production	Evaporation crystallization of NaCl, KCl, Na₂SO₄	Resists chloride corrosion; long life reduces replacement frequency
Fine chemical industry	Concentration of dyes, pesticide intermediates, solvent recovery	Zero seal leakage reduces VOCs and toxic substance fugitive emissions
Pharmaceutical / Food	Evaporation concentration of antibiotics, glucose, monosodium glutamate	Hygienic polishing; CIP (Clean-in-Place) design optional
Seawater desalination	Low-Temperature Multi-Effect (MED) circulation	High-flow, low-head matching; Titanium construction resists seawater corrosion

VI. Performance Guarantees & Standards

• Design & Manufacturing Standard: GB/T 3215 (API 610 optional)

• Efficiency Rating: Meets GB 19762 energy-saving evaluation value

• Sealing System: Complies with ISO 21049 (API 682)

• Vibration Standard: ≤ 2.8 mm/s (ISO 10816-3 Class A)

• Complete Machine Warranty: 18 months (or 8000 operating hours, whichever comes first)

VII. Selection & Customization Services

Jiangsu Haifa offers one-on-one application-based selection. The user needs to provide:

1. Medium name, concentration, temperature, pH value, solids content;

2. Design flow rate (m³/h) and head (m);

3. Available Net Positive Suction Head (NPSHa);

4. Preferred installation type (Horizontal/Vertical/Suspended);

5. Electrical and control requirements (voltage, VFD requirement, hazardous area classification).

We can provide the "Forced Circulation Pump Energy Saving Calculation Sheet" and "Sealing System Proposal" within 72 hours.

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