Long-Cycle Cryogenic Centrifugal Pump

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

Cryogenic Transport Systems Horizontal Centrifugal Pumps

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

The Long‑Cycle Cryogenic Centrifugal Pump is a high‑reliability pumping system engineered for extended‑duration operation under ultra‑low temperature conditions. Designed for long‑cycle duty, it provides stable flow, consistent pressure output, and excellent thermal resistance when transferring 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 continuous or long‑interval cryogenic liquid transfer.

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Product Overview

The Long-Cycle Cryogenic Centrifugal Pump is specifically designed for the transfer of cryogenic liquids such as liquefied natural gas (LNG), liquid nitrogen (LN₂), liquid argon (LAr), and liquid oxygen (LOX). It offers high efficiency, stable operation, and long service life, making it suitable for industrial environments that require long-term continuous operation.

The pump provides high flow rate and high head performance, ensuring stable output while meeting the demands of long-duration cryogenic liquid transfer in extremely low-temperature conditions.

Working Principle

The pump adopts a multi-stage centrifugal design, where the rotating impeller generates centrifugal force to draw cryogenic liquid from the inlet and pressurize it toward the outlet, enabling efficient liquid transfer.

The pump body is manufactured with cryogenic-resistant materials and equipped with gas labyrinth sealing technology, effectively preventing leakage and ensuring stable operation during long-term continuous use. An explosion-proof motor design further ensures safe operation in environments containing flammable or explosive media.

Key Features

High Flow Rate and Head:Flow capacity up to 100 m³/h and head up to 450 m, suitable for a wide range of industrial applications.
Gas Labyrinth Seal:Advanced gas labyrinth sealing technology improves sealing performance and extends pump service life.
Long-Term Operation:Designed for over 20,000 hours of continuous operation, ensuring long-term stability and reliability.
Explosion-Proof Motor:Suitable for environments handling flammable or explosive media, ensuring operational safety.
Strong Cryogenic Adaptability:Designed to operate reliably in extremely low-temperature environments and handle cryogenic liquids such as LNG and LN₂.

Applications

Cryogenic Liquid Transfer:Efficient transfer and storage of LNG, LN₂, LAr, LOX, and other cryogenic liquids.
Chemical & Energy Industries:Used in chemical plants, liquefaction facilities, and other industrial processes requiring long-term cryogenic liquid transfer.
Marine & Storage Systems:Applied in ships, ports, and large storage terminals for cryogenic liquid transfer.
Research & Laboratory Applications:Provides stable long-term cryogenic liquid supply for research institutes and experimental facilities.

Model	Flow Rate (m³/h)	Head (m)	Net Positive Suction Head (m)	Motor Power (kW)	Continuous Operation Time
LBP-12/55	12	55	1.6	7.5	≥20000 hr
LBP-16/75	16	75	2	11
LBP-24/80	24	80	2	22
LBP-32/73	32	75	2.5	30
LBP-51/70	51	75	2.5	37
LBP-85/75	85	75	1.2	55
LBP-25/260	25	260	2.2	75
LBP-55/260	55	260	2	110
LBP-80/280	80	280	2.3	132
LBP-100/450	100	450	1.1	280
LBZ-69/880	69	880	1.1	280
Seal Type	Gas labyrinth seal
Applicable Medium	Liquefied Natural Gas (LNG), Liquid Nitrogen (LN₂), Liquid Argon (LAr), Liquid Oxygen (LOX)
Application	1. Explosion-proof motor for flammable and explosive media;
Application	2. Maximum flow rate up to 1250 m³/h