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 […]
Selecting a VS6 Vertical Suspended Pump for Low-Temperature, Vapor-Prone Service
Longgang Pump’s LDT(VS6) is a double-casing, radial-split, multistage bag type suspended pump especially designed for such service condition where the pumped fluid is near its vapor pressure. An inducer is installed at the impeller’s inlet. The hydraulic designs of the 1st and 2nd stages are separate. A multi-point-supporting shaft is adopted to effectively tackle the risks […]
CO2 Booster Pump Selection for CCUS Projects – Structure, Seals, and Materials
A CO2 booster pump for CCUS must keep a difficult medium inside the intended phase and pressure window while delivering stable flow. Liquid carbon dioxide can gasify easily, has low lubricity, and may operate at low temperature. Longgang Pump’s Qilu Petrochemical-Shengli Oilfield CCUS application gives a concrete reference point: 125 m3/h flow, 800 m head, […]
Liquid Sulfur Pump Selection: Structure, Sealing, and Thermal Management
For a liquid sulfur process, the temperature of the sulfur in the pump and discharge lines must be kept within the process temperature range to remain pumpable. For pit or tank type applications, a VS4 sump pump is offered as a vertical version. Other important criteria for selection of a suitable pump and thermal system […]
Chemical Transfer Pumps for Alkylation Units
Compare OH2, BB2, and VS1 chemical transfer pumps for alkylation units, including seal-plan and material selection for acid and hydrocarbon duties.
Vertical Turbine Pump Selection for Sump, Deep-Tank, and Submerged Service
Selecting a vertical turbine pump for sump and submerged service: single-shell, long-axis, and double-shell bag designs, with the right materials and seals.
How to Choose a Vertical Inline Pump for Refinery and Chemical Service
How to select a vertical inline pump for refinery and chemical duty: structure, head limits, materials, seals, and when a centerline pump fits better.
How to Select a CO2 Booster Pump for CCUS Projects: Structure, Seals, and Materials
Learn how to select a CO2 booster pump for CCUS projects by reviewing dense-phase CO2 behavior, pressure stability, pump structure, seals, and materials.
How to Choose a Maleic Anhydride Plant Pump: Structure, Mechanical Seals, and Materials
Learn how to choose a maleic anhydride plant pump by matching process duty, pump structure, seal arrangement, and material selection for hot and corrosive services.
How to Choose a High-Temperature Hot Oil Transfer Pump for Refining Projects
A high-temperature hot oil transfer pump must control heat, pressure, shaft movement, seal environment, and maintenance access at the same time. In refining and chemical integration projects, hot oil circulation can expose a centrifugal pump to thermal expansion, volatile hydrocarbons, heavy casing loads, and long continuous operation. The right selection starts with the duty point, […]
Corrosion-Resistant Centrifugal Pumps for Green Coal Chemical Projects: Structure, Seals, and Materials
A corrosion-resistant centrifugal pump for green coal chemical projects must be chosen based on chemistry first. Coal gasification, coal liquefaction, methanol, dimethyl ether, coal-to-olefins, scrubbing, desulfurization, and wastewater duties can involve acids, alkalis, salts, trace solids, high temperatures, and pressure variations. Structure, mechanical seals, and materials must be specified together so the pump can resist corrosion […]