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Ld Series Industrial Pump with Enhanced Circulation Performance
Applications
- District heating systems (water quality should comply with recognized standards)
- HVAC and air conditioning systems
- Cooling systems
- Domestic hot water systems
- Industrial liquid transfer
- Water supply systems
Key Configurations
- Pump Type: LD Series Single-stage Pipeline Circulating Pump
- Structure: Top pull-out design for easy maintenance without affecting pipeline system
- Shaft Structure: Extended shaft design (for LD32-LD150 models)
- Mechanical Seal: Graphite/Silicon Carbide
- Motor Type: Standard enclosed, air-cooled motor
- Casing Material: Cast Iron
- Impeller Material: Cast Iron
- Flange Standard: GB/T17241.6 (ISO 70052), Pressure rating PN16
- Max. Working Pressure: 12 bar (standard) / 16 bar (special)
- Liquid Temperature Range: -15°C to 110°C
- Ambient Temperature: Max. +40°C
Technical Specifications
(Custom configurations available upon request.)
Model |
LD50-24GQ/2 |
Type |
Single-stage Pipeline Circulating Pump |
Rated Flow |
24.8 m³/h (as per performance curve) |
Rated Head |
25.2 m (as per performance curve) |
Motor Power |
3 kW |
Speed |
2900 rpm |
Outlet / Inlet Diameter |
DN50 |
Voltage |
380 V |
Power Frequency |
50 Hz |
Protection Class |
IP55 |
Insulation Class |
Class F |
Casing Material |
Cast Iron |
Impeller Material |
Cast Iron |
Mechanical Seal Material |
Graphite/Silicon Carbide |
Max. Working Pressure |
12 bar (standard) / 16 bar (special) |
Liquid Temperature Range |
-15°C to 110°C |
Ambient Temperature |
Max. +40°C |
Max. Altitude |
1000 m |
Rotation Direction |
Clockwise (viewed from motor fan cover) |
Flange Standard |
GB/T17241.6 (ISO 7005-2), PN16 |
Applicable Medium |
Clean, thin, non-corrosive, non-flammable/explosive liquids, free of solid particles and fibers |
Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 24 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.
Changsha HaoBo Brothers Technology Co., Ltd
Changsha HaoBo Brothers Technology Co., Ltd. Was founded in 2015 and established by three like-minded mechanical engineers with backgrounds in the petrochemical, mining, and metallurgical industries. The company was created to address key industry challenges by delivering high-quality, cost-effective mechanical equipment and components through integrated engineering solutions, tailored to the specific needs of clients in the petrochemical, mining, and metallurgical sectors.
From 2015 to 2017, the company operated by supplying custom-engineered equipment (through outsourced manufacturing) alongside imported European and American spare parts, serving both domestic and international customers across the petrochemical, mining, plastics, and metallurgical industries.
In 2017, Changsha HaoBo Brothers Technology Co., Ltd. Invested in and established a joint-venture factory focused on manufacturing equipment and components for the metallurgical industry, as well as air compressors, large-scale pumps and valves, blowers, and related machinery for the petrochemical and mining sectors.
In 2022, the company further invested in another joint-venture factory dedicated to producing equipment and accessories for the plastics industry.
To date, the group's core business operations encompass the following:
With branch offices established in Germany and the United States, we source and supply European and American brand spare parts and equipment to clients in the petrochemical, mining, plastics, and metallurgical industries.
Through our joint-venture factories in China, we manufacture equipment and spare parts for the metallurgical, petrochemical, mining, and plastics industries.
We act as authorized distributors for select equipment from leading domestic manufacturers, supplying these products to clients in the metallurgical, petrochemical, metallurgy, and plastics industries.
Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized models depend on the specific product.
Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized pump size?
A: Absolutely! We offer tailored attachments.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
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