Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Low-flow high-head centrifugal pumps refer to centrifugal pump equipment capable of providing high outlet pressure or significant head when delivering small flow rates, such as a flow rate of 0.006 m³/h and a head above 200 m. Unlike high-flow circulation pumps that prioritize transporting large volumes of media per unit time, these pumps emphasize "precise delivery, stable pressurization, and long-distance or high-lift transportation." They are widely used in chemical, energy, environmental protection, and precision manufacturing industries.

In the petrochemical sector, low-flow high-head centrifugal pumps are commonly employed for transporting high-precision laboratory fluids, additives, catalysts, acid-base solutions, solvents, and intermediate. For example, in applications such as reactor feeding, tower reflux, mother liquor transfer, or high-pressure process replenishment, the flow rate is small, but the system pressure to overcome is high, requiring pumps with high head, reliable sealing, and strong corrosion resistance.

In boiler, power, and thermal energy systems, these pumps are frequently used for water replenishment, condensate recovery, deaerator refilling, and high-pressure circulation systems. Particularly in small boilers, waste heat recovery units, experimental setups, where the medium flow is limited but outlet pressure is high, low-head pumps fail to meet requirements, making low-flow high-head pumps a more suitable choice.

In the environmental water treatment industry, low-flow high-head centrifugal pumps can be used for chemical dosing with parameters as low as 0.001 m³/h, membrane system pressurization, concentrated liquid transfer, and high-level tank water replenishment. For instance, at the front or rear end of reverse osmosis systems, stable pressure is often needed to ensure filtration efficiency and system operational continuity. In cases involving corrosive chemicals, the pump body material must be selected from stainless steel, duplex stainless steel, fluoroplastics, or other corrosion-resistant materials.

In the new energy and fine chemical sectors, low-flow high-head pumps often serve in the transport of lithium battery materials, electronic chemicals, pharmaceutical intermediates, and high-purity liquids. These industries demand higher precision in flow control, medium cleanliness, and sealing safety. The pump's structural design must not only consider head but also prevent leakage, contamination, and cavitation.

Overall, the core value of low-flow high-head centrifugal pumps lies not in "delivering large volumes" but in "stable delivery, sufficient pressure, and adaptability to complex working conditions." When selecting such pumps, key factors to focus on include flow rate, head, medium density, temperature, corrosiveness, net positive suction head (NPSH), sealing scheme, and motor power. Only when these parameters are matched can long-term stable operation be ensured.

Jiangsu Haifa Machinery Manufacturing Co., Ltd. was restructured from Jiangsu Ligong Group Co.,., originally established in 1958, and the Jingjiang Stainless Steel Pump and Valve Factory of the Iron and Steel Research Institute under the Ministry of Metallurgical Industry. The company primarily produces API610 chemical process pumps—OH1, OH2, OH3,4 pumps; BB1, BB2 BB3, BB4, BB5 double-casing multistage pumps; VS1, VS4, VS5, VS6 barrel-type pumps; HES chemical process pumps; chemical pumps; petrochemical pumps; sixth-generation ultra-low carbon stainless steel high-quality leak-proof molten urea pumps; urea hydrolyzer feed pumps; high-temperature asphalt pumps;ot tube pumps; rotary jet pumps; low-flow high-head pumps; multistage vortex pumps; high-temperature molten salt pumps; high-temperature nitric acid pumps; vertical submerged pumps; magnetic drive pumps; low-temperature liquid hydrogen and methanol pumps; high-pressure liquid hydrogen pumps low-temperature pumps; high-temperature nitric acid magnetic drive pumps; magnetic drive pumps for conveying solid-containing media; industrial pumps; canned motor pumps; slurry pumps; titanium tetrachloride pumps; self-priming pumps; lined fluoroplastic pumps; sandwich-lined fluoroplastic pumps; leak-proof pumps; desulfurization and denitrification pumps; alkali pumps; pumps; geothermal pumps; oil pumps; axial flow pumps; printing and dyeing pumps; dyeing and finishing pumps; Ti alloy pumps; C-276 material; Hastelloy; 316L material; 347 material; forced circulation pumps; fourth-generation nuclear power pumps; nuclear island pumps; specialized pumps for filter presses; refrigerant pumps; long-shaft vertical submerged pumps; CQC first-level energy efficiency chemical pumps; high-pressure descaling industrial pumps; and Chinese chemical pumps. Website: www.jslgpump.com. Contact number: 13905263417. E-mail: jslgpump@gmail.com. E-mail: jsareva@163.com.