Low Temperature Resistant Liquid Oxygen Cylinder Filling Pump for Cold Region Station
Products Description

This series of pump is based on the advanced technology in the world,design and manufactured with meticulousness.The pump has a stable performance, convenient operation and maintenance,start-up time is short,smooth operation and so on.Pump Head adopt high vacuum multilayer insulation,Reduce the cold damage the working medium,And the use of flow-through design,So that the pump can be started at the time without relief.The pump is suitable for liquid oxygen,liquid nitrogen, liquid argon filling system.
Its aim is to work in the cryogenic liquid storage tank after filling the cylinder supercharged vaporization, Simple design and careful manufacturing optimization ensures safe and reliable operation for a long time.
Specifications
| Model | Type | Flow Range | Inlet pressure | Max Pressure |
| (Mpa) | (Mpa) | |||
| BPO 50-150/165 | Single | 50-150 | 0.02-0.8 | 16.5 |
| BPO 100-450/165 | Horizontal | 100-450 | ||
| BPO 300-600/165 | Piston | 300-600 | ||
| BPO 400-800/165 | 400-800 | |||
| BPO 800-1600/165 | 800-1600 | |||
| BPO 100-450/200 | Single | 100-450 | 0.02-0.8 | 20 |
| BPO 300-600/200 | Horizontal | 300-600 | ||
| BPO 200-450/250 | Piston | 200-450 | 25 | |
| BPO 300-600/250 | 300-600 | |||
| BPO 300-600/350 | 300-600 | 35 |
Detailed Images

Product Features
✅ Low NPSHr design, excellent anti-cavitation performance, prevent pump damage from cryogenic medium vaporization
✅ Special forged stainless steel pump casing for cryogenic service, no brittle fracture risk under low temperature
✅ High-precision 5-axis milled impeller, high hydraulic efficiency and lower energy consumption
✅ Independent gas seal system to isolate moisture, avoid internal ice blockage
✅ Cold-heat isolation structure, block cold conduction and protect driving motor
✅ Low vibration & low noise, suitable for 24h continuous operation
✅ Modular design, convenient for on-site maintenance without full disassembly
✅ VFD available, continuously adjustable flow and head
✅ Optional explosion-proof model for flammable LNG working condition
Application Fields
✅ LNG storage tank, LNG filling station, LNG vaporizer station for cryogenic liquid transfer & loading
✅ Air separation plant: LOX, LN2, LAr transfer, filling and tank-to-tank transfer
✅ Cryogenic tank project, cryogenic storage tank, ISO tank container loading & unloading system
✅ Laboratory cryogenic fluid supply, aerospace cryogenic test system
✅ Food freezing, cryogenic extraction, cryogenic biological sample cold chain transfer
✅ Chemical cryogenic process, liquid CO2 transfer system
Packing & Shipping

The normal package is wooden box.The wooden box will be fumigated for our customers.If container is too tigher,we will use pe film for packing or pack it according to customers special request.
How to Select Cryogenic pump?
1.Confirm medium: LNG / LN2 / LOX / LAr, medium determines material & sealing solution
2.Working temperature & saturation pressure, calculate NPSHr (critical factor for cryogenic pump selection)
3.Required flow rate & head, add 10~15% margin for pipeline loss
4.Installation type: submerged inside tank or horizontal surface mounted
5.Power supply & ex-proof requirement, indoor or outdoor installation
6.Control type: fixed speed / VFD, DCS remote signal feedback or not
7.Project standard: GB, ASME, CE for export
Send your working condition data, our engineer provides free selection proposal
After-sales Service
1.Warranty: 12 months after commissioning or 18 months after shipment, whichever comes first. Free spare parts for manufacturing defects within warranty.
2.Full document package: installation drawing, operation manual, P&ID, material certificate, factory test report, COC.
3.Remote technical support: 7×24 online communication & troubleshooting.
4.Overseas engineer dispatch available for cryogenic pump installation, commissioning & training (client covers travel & accommodation).
5.Lifelong spare parts supply: original spare parts available after warranty, fast quotation & delivery.
6.Regular follow-up and preventive maintenance proposal to extend service life of cryogenic pump.
Products Description

We are always at your service when you need
HTYJ was established in 2004. With more than 20 years of production and sales experience, it is a company specializing in the research, development, sales and service of cryogenic (liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas, liquid carbon dioxide, etc.) tanks, ISO tank containers, liquefied natural gas marine fuel tanks, carbon dioxide recovery units, PSA oxygen generators, semi-trailer tanks, air separation units, cryogenic pumps, normal temperature vaporizers, liquid Dewar flasks, small liquid nitrogen containers and related products.
6,000+
Plant Area
years experience
employees
professional and technical service personnel
Exhibitions

We regularly attend global energy, air separation & LNG exhibitions: Asia Gas Show, Middle East Oil & Gas Exhibition, South America Energy Exhibition, etc. Cryogenic pump prototype displayed at booth to connect gas company and trading partners. Welcome to book face-to-face meeting at exhibition, discuss your project working condition in advance.
FAQ
Q: What medium can your cryogenic pump transfer?
A: Our cryogenic pump supports LNG, liquid nitrogen, liquid oxygen, liquid argon and liquid CO2.
Q: Is your submerged cryogenic pump for LNG tank?
A: Yes, submerged cryogenic pump is widely used inside LNG storage tank for liquid transfer & filling.
Q: Does cryogenic pump need gas seal?
A: Yes, gas seal prevents moisture ingress and ice blockage inside cryogenic pump.
Q: Can your cryogenic pump run continuously 24h?
A: Yes, our cryogenic liquid transfer pump is designed for 24h continuous industrial operation.
Q: Do you provide cryogenic pump cold test before shipment?
A: Yes, every cryogenic pump will pass cold medium test before delivery.
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