Cryogenic reciprocating pump is a high-precision positive displacement fluid handling equipment specially designed for transferring cryogenic liquids (typically at temperatures below -150°C, such as liquid oxygen, liquid nitrogen, liquid argon, liquid natural gas (LNG), liquid hydrogen and liquid helium). It adopts a reciprocating working principle driven by electric motor, hydraulic system or pneumatic device: the piston/plunger makes linear reciprocating motion in the cylinder to change the volume of the pump chamber, realizing the suction and discharge of cryogenic media through the one-way action of inlet and outlet valves.
To adapt to ultra-low temperature working conditions, the pump is manufactured with cryogenic-resistant materials (e.g., stainless steel 304/316L, nickel-based alloys, aluminum alloys) for key components, and is equipped with professional thermal insulation structures, sealing systems and cold compensation devices. It features high discharge pressure, stable flow rate, strong medium adaptability and high volumetric efficiency, and can realize stepless flow regulation and safe operation under extreme low temperature and high pressure conditions. Meanwhile, the pump is designed with multiple safety protection functions (overpressure protection, dry running prevention, low temperature leakage alarm, etc.) to avoid risks such as medium vaporization, equipment frostbite and explosion caused by improper operation.
Technical Parameters
1. Flow range: 50-6000L/h
2. Max outlet pressure: 16.5Mpa-150.0Mpa
Core Technical Characteristics
1.Positive displacement structure, stable flow with little fluctuation, suitable for precise metering and transfer;
2.Cryogenic-resistant material and sealing design, ensuring tightness and mechanical performance at ultra-low temperature;
3.High discharge pressure range (from several bar to hundreds of bar), meeting high-pressure conveying requirements;
4.Low NPSH (Net Positive Suction Head) design, effectively preventing cryogenic liquid cavitation and vaporization;
5.Compact structure, easy installation and maintenance, with optional skid-mounted integrated design for outdoor use;
6.High efficiency and energy saving, low noise and vibration, adaptable to continuous and intermittent working conditions.
Performance Featuring:
1.A such pump has classic design and stable performance;it service life can reach 20 years;
2.A High vacuum jacket pump head is used,and the vacuum degree reaches 10(-5)Torr sa as to reduce cold loss
3.Its Seal is reliable:the service life of packing can reach 150,000 times/cylinder and the service life of the Piston ring is as long as 300,000 times/cylinder
4.An auxiliary gas Sealing device can be equipped to further enhance the service life of the Sealing element
5.Maintenance is convenient：it merely takes two hours to perform a routine maintenance
6.The pump can be continuously operated for 24 hours.
Applications
Cryogenic reciprocating pumps are the core equipment in the cryogenic fluid industry, widely used in industrial gas production, energy, aerospace, metallurgy, medical treatment and other fields, and are irreplaceable in scenarios requiring high-pressure, precise and stable conveying of cryogenic liquids. Specific application scenarios are as follows:
Hot Tags: high efficiency piston pump, China, suppliers, manufacturers, factory, wholesale, price, China High Flow Service Cryogenic Piston Pumps manufacturers, China High Flow Service Cryogenic Piston Pumps suppliers, China Piston Pumps For Nitrogen Purging, High Flow Service Cryogenic Piston Pumpsds, Reciprocating Pumps for Steel, Reciprocating Pumps for Steel Factory
