The Monument of Longgang: Recognition as the Sixth Batch of National “Little Giant” Enterprises
Recently, the Shandong Provincial Department of Industry and Information Technology announced on the official website the sixth batch of “little giant”enterprise —entitled as newly emerged, specialized and innovative. With the completion of the publicity period, Yantai Longgang Pump Industry Co., Ltd. was identified as the sixth batch of national “little giant” enterprises. Longgang Pump industry is the leader in domestic […]
The Showcase of Technical Strength and Innovation: Our Honor in TatOilExpo-2024
In late August, the refreshing breeze of golden autumn heralds TatOilExpo-2024 taking place from August 26-28, 2024. The chairman leads the Longgang delegation, showcasing our latest technological achievements and innovative solutions at the Expo. He engaged in meaningful discussions with industry leaders, partners, and potential clients worldwide. Mr. Oleg, Minister of Industry and Trade of the Republic of Tatarstan, visited the booth […]
Great News! The Postdoctoral Innovation Base Project of Longgang has Received Provincial Funding
Recently, the review outcomes for the 2026 Shandong Provincial Postdoctoral Innovation Project were announced. Dr. Pan Jiajing, based at the Postdoctoral Innovation Practice Base of Yantai Longgang Pump Industry Co., Ltd., secured a provincial third-class grant on the strength of his project Multi-Field Coupling Optimization Design of Nuclear-Service Liquid Heavy-Metal Pumps and the Mechanism of […]
The Decision Matrix: Choosing Between a Single Suction and Double Suction Pump for Industrial Fluids
Operational efficiency in petrochemical and refinery environments depends heavily on selecting the correct hydraulic architecture. The financial stakes of this choice are significant, as pump systems often account for a substantial portion of total energy consumption and maintenance expenditures in industrial plants. Understanding the technical nuances within a single-suction and double-suction pump selection process is the first […]
Solving Fluid Challenges: How the Axial Split Double Suction Centrifugal Pump Eliminates Cavitation
Cavitation remains one of the most persistent and destructive challenges in industrial fluid handling, often leading to premature equipment failure, excessive noise, and significant operational downtime. For large-scale industrial processes, selecting the right equipment is critical to maintaining system integrity. The axial split double suction centrifugal pump, specifically the LAD (BB1) series manufactured by Longgang […]
Mastery of the Pump Priming Process for Flawless Refinery Start-ups
The commissioning phase of a refinery represents one of the most critical windows in the lifecycle of petrochemical infrastructure. During this period, the reliability of rotating equipment determines the long-term operational stability and safety of the entire facility. Among the various technical requirements, the pump priming process stands as a fundamental prerequisite for successful machine […]
A Comprehensive Guide to Centrifugal Pump Priming Methods for Industrial Reliability
The operational integrity of fluid transport systems in petrochemical and cryogenic industries depends heavily on the initial startup phase. Among the various technical requirements, ensuring a successful priming of a centrifugal pump stands as a non-negotiable prerequisite for preventing mechanical damage and ensuring long-term system stability. Longgang Pump, as a qualified supplier for major corporations […]
Radial Forces vs. Extreme Head: Decoding the Advantages of Multistage Centrifugal Pump Configurations
Industrial applications in oil refining, petrochemical processing, and power generation frequently require fluid transportation at pressures that exceed the structural and hydraulic limits of single-stage equipment. When discharge requirements reach extreme head levels, the implementation of a multi-stage centrifugal pump becomes the standard engineering solution. However, as pressure increases, so do the internal mechanical stresses. Radial […]
From Petrochemicals to Power: Essential Centrifugal Pump Applications in Industry Today
Centrifugal pumps play a critical role in fluid transport across many industries. They transport essential liquids over long distances and through different process units. From raw material extraction to power production, the range of centrifugal pump applications in industry shows how widely this equipment is used. Reliability and efficiency matter most when fluids are hazardous or very hot. […]
The Critical Role of Pump Priming in Cantilever Centrifugal Pump Systems
Why Priming is the Heartbeat of Your Pump System The successful operation of a centrifugal pump requires that there is liquid in the pump casing prior to the rotation of the impeller. Although some pump types can evacuate air and self-prime for limited periods, centrifugal pumps are generally not self-priming and they rely on the impeller […]
Priming Made Easy: Ensuring Reliable Start-Up for Vertical Suspended Centrifugal Pumps
Reliable operation of high-performance industrial systems begins long before the motor reaches its rated speed. In cryogenic and petrochemical fluid handling, the pump priming process remains the most important step before equipment starts. If air or vapor stays inside the pump casing, the result can be mechanical seal damage, vibration, and dry running. For vertical […]
Single Suction vs Double Suction Pump Selection Guide
In the metallurgical industry, fluid transport systems form the core of production processes, aiding tasks from blast furnace cooling to acid pickling and wastewater treatment. Yet, engineers frequently encounter major operational pain points: excessive vibration caused by axial imbalance, repeated bearing breakdowns, and the steep expenses of downtime in continuous casting or rolling mills. Selecting between […]