Il Monumento di Longgang: Riconoscimento come sesta serie di imprese nazionali "Little Giant"
Recentemente, il Dipartimento provinciale dello Shandong per l'Industria e le Tecnologie dell'Informazione ha annunciato sul sito ufficiale la sesta serie di imprese "little giant" (piccoli giganti) – intitolata come emergenti, specializzate e innovative. Con il completamento del periodo di pubblicità, Yantai Longgang Pump Industry Co., Ltd. è stata identificata come parte della sesta serie di imprese nazionali "little giant". L'industria Longgang Pump è leader nazionale […]
La vetrina della forza tecnica e dell'innovazione: Il nostro onore a TatOilExpo-2024
Alla fine di agosto, la brezza rinfrescante dell'autunno dorato annuncia TatOilExpo-2024 che si terrà dal 26 al 28 agosto 2024. Il presidente guida la delegazione Longgang, mostrando i nostri ultimi risultati tecnologici e soluzioni innovative all'Esposizione. Ha intrattenuto discussioni significative con leader del settore, partner e potenziali clienti in tutto il mondo. Il signor Oleg, Ministro dell'Industria e del Commercio della Repubblica del Tatarstan, ha visitato il padiglione […]
How to Select Materials for a Caustic Soda Pump
Selecting a caustic soda pump material based on concentration of sodium hydroxide alone is incorrect. In addition to concentration, factors such as temperature, contaminants, solids, velocity, welding condition, residual stress, start-up and shutdown practice, and seal support must be taken into account when selecting a material for a particular component. Material selection must be made […]
Boiler Feed Pump Mechanical Seals: Plan 21 or Plan 23?
Boiler feed pump mechanical seals need a cooling plan that keeps water liquid at the seal faces throughout the operating cycle. Plan 21 cools a flush taken from the pump’s high-pressure side. Plan 23 recirculates liquid within the seal chamber through a cooler. Plan 23 often reduces the cooling load in clean hot-water service, but […]
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.