Cryogenic Piston Pump | Model: SBP400-800/250

Our cryogenic piston pump, Model SBP400-800/250, is a high-precision, heavy-duty positive displacement fluid transfer equipment, specially engineered for the safe and efficient delivery of cryogenic liquids (operating temperature typically below -150°C), including liquid oxygen, liquid nitrogen, liquid argon, LNG, liquid hydrogen and liquid helium. It is widely used in large-scale cryogenic storage, energy exploitation, chemical engineering, aerospace and metallurgical industries, providing stable and reliable fluid handling solutions for high-demand ultra-low temperature systems.

Core Design & Working Principle

Model SBP400-800/250 adopts an advanced piston reciprocating working principle, driven by a high-power electric motor matched with a precision reducer. The piston makes linear reciprocating motion in the cylinder under the drive of the crankshaft connecting rod mechanism, changing the volume of the pump chamber periodically. Through the one-way control of the inlet and outlet check valves, the pump realizes the stable suction and high-pressure discharge of cryogenic media. To adapt to harsh ultra-low temperature working conditions, the cylinder, piston, valve core and other key components are made of high-strength cryogenic-resistant materials (304/316L stainless steel, nickel-based alloys), equipped with professional vacuum insulation structures, high-temperature and low-temperature resistant sealing systems and thermal expansion compensation devices, which effectively reduce cold loss, ensure reliable sealing performance and long-term stable operation in extreme low-temperature environments.

Key Advantages

High Pressure & Large Flow: Optimized piston structure and power system, enabling large flow delivery (400-800 L/h) and high discharge pressure (up to 250 MPa), meeting the high-demand transfer requirements of large-scale cryogenic systems.

Superior Cryogenic Performance: Special cryogenic material selection and structural optimization, capable of stable operation at temperatures below -150°C, effectively preventing cryogenic media cavitation, vaporization and equipment frostbite.

Reliable & Durable: Mature structural design, high-precision machining and strict quality control, ensuring long service life; wear-resistant piston and valve components, combined with high-performance sealing system, realize zero leakage and low maintenance frequency.

Safe & Intelligent: Equipped with a complete set of safety protection systems, including overpressure protection, dry-running prevention, low-temperature leakage alarm, overload protection and automatic shutdown, fully ensuring the safety of equipment and operators; optional intelligent control system, realizing remote monitoring and automatic adjustment.

Flexible & Adaptable: Suitable for both continuous and intermittent operation, with strong medium compatibility; customizable design available to meet the specific needs of different application scenarios and working conditions.

Basic Technical Parameters (Model: SBP400-800/250)

Flow range: 400-800 L/h (customizable according to demand)

Max outlet pressure: 250 MPa

Operating temperature: ≤ -150°C

Piston diameter: Customized according to working conditions

Material: 304/316L stainless steel, nickel-based alloys (optional)

Drive mode: High-power electric motor + precision reducer

Sealing type: High-performance cryogenic resistant seal

We are committed to providing high-quality cryogenic fluid handling equipment and professional technical support. For more detailed technical parameters, customization needs or quotation of Model SBP400-800/250, please contact our sales team immediately. Get in touch today to start your customized ultra-low temperature fluid solution!