HDG segmented multistage centrifugal pumps are a series of products carefully developed after introducing digestion and absorption of foreign high-efficiency hydraulic models. This product is mainly used for boiler water supply in thermal power plants and steel mills to remove iron oxide from the surface of steel plates during the hot rolling process. It is characterized by high efficiency and energy saving, reliable operation and easy maintenance.
HDG type pump is a segmented multi-stage horizontal centrifugal pump, primarily composed of the pump body, rotor components, guide vane, shaft seal system, bearing components, and balancing mechanism. The suction port and discharge outlet are vertically upward.
1. Rotor Assembly: The pump rotor consists of the shaft, impeller, balance drum, and coupling. It is dynamically balanced at high speed (G2.5) to ensure stability. The shaft is forged from high-strength alloy steel with chrome-plating.
2. Shaft Seal System: Offers container-type mechanical seals or packing seals. PLAN23 flushing scheme ensures long life (over 8,000 hours) without external condensate requirement.
🛡️ Monitoring and Protection
Equipped with advanced instruments to monitor operation:
Temperature monitoring for radial and thrust bearings.
Pressure indicators at suction, discharge, and lubrication lines.
Integrated vibration monitoring devices at both ends.
Recirculation systems to prevent overheating and vaporization.
📸 Detailed Photos
❓ Frequently Asked Questions
What are the primary applications for HDG pumps?
They are mainly used for boiler water supply in thermal power plants and steel mills, as well as high-pressure descaling in steel rolling processes.
Can the shaft seal be replaced easily?
Yes, the container-type mechanical seals are designed for easy replacement of rings and O-rings without disassembling the main pipelines.
What is the maximum head capacity of this range?
The HDG series can reach a maximum head of up to 4000 meters depending on the specific model and stage configuration.
Does it require a front-end booster pump?
Due to the excellent hydraulic model and optional double-suction impeller structure, a front pump is often not required.
What monitoring systems are included?
The units include temperature, pressure, vibration, and speed monitoring, with both on-site displays and remote DCS signal transmission.
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