Long-Cycle Low-Temperature Centrifugal Pump

Long‑Cycle Cryogenic Centrifugal Pump for Continuous Low‑Temperature Operation

Cryogenic Centrifugal Pumps Cryogenic Transport Systems

Continuous‑Duty Pump cryogenic liquid transfer Cryogenic Processing Equipment Industrial Gas Pump Laboratory Cryogenic Equipment long cycle cryogenic pump low-temperature centrifugal pump LOX/LIN/LAR Pump Ultra‑Low Temperature Pump

The Long‑Cycle Low‑Temperature Centrifugal Pump is a high‑reliability cryogenic pump engineered for continuous or extended‑duration operation under ultra‑low temperature conditions. Designed for long‑cycle duty, it delivers stable flow, consistent pressure, and excellent thermal resistance when handling cryogenic liquids such as liquid nitrogen, liquid oxygen, and liquid argon. The pump features corrosion‑resistant materials, precision‑balanced impellers, and advanced sealing structures to ensure minimal leakage and long service life. It is widely used in industrial gas systems, cryogenic equipment, scientific research, and applications requiring uninterrupted low‑temperature liquid transfer.

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Product Overview

The Long-Cycle Low-Temperature Centrifugal Pump is designed for high-reliability transfer of cryogenic liquids, including liquefied natural gas (LNG), liquid nitrogen (LN₂), liquid argon (LAr), and liquid oxygen (LOX).

This pump ensures stable flow and head during extended continuous operation, making it ideal for industrial, energy, and research applications where long-term, uninterrupted low-temperature liquid transfer is critical. Its robust construction and cryogenic-resistant materials guarantee long-term operational stability.

Working Principle

The pump operates via a motor-driven impeller that accelerates liquid from the pump center outward using centrifugal force. The guide vanes convert velocity energy into pressure energy, achieving stable liquid delivery.

Pump bodyis constructed with low-temperature resistant materials.
Gas labyrinth sealseffectively prevent leakage and minimize maintenance requirements.
Multi-stage impeller designs or optimized pump structures allow adaptation to various flow rates and head requirements, maintaining stability under extreme cryogenic conditions.

Key Features

Extended Continuous Operation:Capable of long-term, uninterrupted pumping in low-temperature environments.
High Efficiency:Provides stable flow and head suitable for diverse industrial applications.
Gas Labyrinth Sealing:Minimizes leakage risk and reduces maintenance frequency.
Cryogenic Compatibility:Designed specifically for LNG, LN₂, LAr, LOX, and other low-temperature liquids.
Safety & Reliability:Optional explosion-proof motor for flammable or hazardous environments.
High Stability:Optimized structure ensures consistent performance under extreme low temperatures and thermal fluctuations.

Applications

Cryogenic Liquid Transfer:Efficient, safe, and reliable delivery of LNG, LN₂, LAr, LOX, and other low-temperature liquids.
Chemical & Energy Industry:Ideal for long-term cryogenic liquid transfer in industrial plants and energy systems.
Marine & Storage Systems:Suitable for cryogenic liquid handling in ships, ports, and large storage facilities.
Research & Laboratory:Provides stable, continuous low-temperature liquid supply for scientific experiments and laboratory applications.

Model	Flow Rate (m³/h)	Head (m)	Motor Power (kW)	Continuous Operation Time (h)
LBP-12/55	12	55	7.5	20000
LBP-15.6/75	15.6	75	22
LBP-24/80	24	80	22
LBP-32/73	32	75	30
LBP-51/70	50	75	37
LBP-85/75	85	75	55
Seal Type	Gas labyrinth seal
Applicable Medium	Liquefied Natural Gas (LNG), Liquid Nitrogen (LN₂), Liquid Argon (LAr), Liquid Oxygen (LOX)
Special Notes	1. Explosion-proof motor available for flammable and explosive media.
Special Notes	2. Max flow rate can reach 1250 m³/h and max head can reach 300 m.