Professional Liquid CO2 Cylinder Filling Pump for Welding Shops
Products Description
Our liquid co2 pump optimizes flow channel based on cryogenic fluid mechanics to reduce medium vaporization risk. Separated design between power end and cryogenic medium end prevents cold transfer damage to motor and transmission parts. Medium wetted parts adopt 304 /316L stainless steel with excellent low temperature and corrosion resistance. Single unit or multiple parallel installation is available to meet large flow continuous transfer requirement according to working conditions. Pump head can withstand -40℃ cryogenic working condition with wide output pressure range, serving as core fluid equipment for liquid carbon dioxide transfer and pressurization.
Technical Parameters
| Transmission medium | Liquid carbon Dioxide |
| Product type | Horizontal,Single Cylinder,Piston |
| Flow range(L/H) | 100-1500 |
| Inlet pressure(Mpa) | 1.38-2.4 |
| Maximum outlet pressure(Mpa) | 16.5 |
| Input power | 380V,3Phase,50Hz |
Product Features
✅ Optimized anti-cavitation pump head structure to reduce flash vaporization of liquid CO₂
✅ Special composite cryogenic seal with long service life and low leakage rate
✅ Separated structure between power side and cryogenic zone to protect motor & transmission parts
✅ Stainless steel wetted parts, low temperature resistance and CO₂ corrosion resistance
✅ Modular design, easy disassembly & maintenance, interchangeable spare parts
✅ Support VFD speed control, stepless adjustment of flow and pressure
✅ Optional explosion-proof version for flammable & explosive plant area
✅ Built-in pressure relief port for system safety protection
Application Fields
▪Dry ice pellet / block production line, dry ice manufacturing plant ▪
Carbonated drink & sparkling water CO₂ carbonation charging
▪CO₂ cylinder & storage tank filling station
▪CO₂ fire protection system tank filling
▪Food industry CO₂ recovery & purification
▪Supercritical CO₂ process test equipment
Packing & Shipment
The pump body is cleaned, dried and anti-rust treated.
Core pump head wrapped with PE protective film.
The whole unit fixed in fumigated solid wood export case with shockproof foam inside.
Wooden case reinforced with steel edge to avoid damage during lifting.
All accessories, spare parts and manuals packed separately in waterproof bags.
Sea freight & land transportation available. Shipping mark, gravity mark and upward mark printed on wooden box.
How to Select liquid co2 pump?
1.Confirm industry: dry ice / beverage / fire protection / chemical.
2.Hourly CO₂ consumption of production line.
3.Required outlet pressure.
4.Operation mode: intermittent / full-day continuous production.
5.Food grade material requirement or not.
6.Explosion-proof requirement on site.
Provide production line condition, we recommend matched liquid co2 pump solution.
Common Troubles & Solutions about co2 pump
| Trouble | Reason | Solution |
|---|---|---|
| No liquid output | Insufficient inlet pressure, CO₂ vaporization gas blockage |
Increase the static pressure of the storage tank, check the cold insulation of the inlet pipeline, and check the inlet temperature |
| Low flow rate | The inlet and outlet valves are clogged and the seals are leaking. |
Check the valve core and replace the aging seals |
| High noise | Cavitation, loose fixed base |
Optimize entrance anti-cavitation and tighten base bolts |
| Pump frequent shutdown | Overload, pressure protection triggered |
Check the outlet pipeline for blockage and pressure setting value |
| Seal leakage | Seal aging, medium containing impurities |
Replace cryogenic seal, inlet filter |
Company Profile
Chongqing Hetai Yijia Intelligent Equipment Co., Ltd.
Established in 2002, HTYJ is an ASME/CE/ISO certified professional manufacturer of LNG marine fuel storage tank, air separation unit, Co2 Recovery Plant, ISO tank container, LPG electric heating vaporizer, liquid nitrogen quick-freezing machine, LPG storage tank, and other cryogenic gas tanks of oxygen, nitrogen, argon and carbon dioxide.We have 4 factories and over 600+ employees, covers an area over 69, 000 m2 with capability of manufacturing over 2, 000 products every year.
Professional team
100+ Technical staff and after-sales personnel
Senior project managers effectively control all aspects of the project
7x24 hours delivery
Exporting to more than 70 cities around the world; with 24/7 delivery capabilities, it is a global partner for enterprises
6000+
Factory area
24+
years experience
600+
employees
100+
professional and technical service personnel
Customer Visit
Domestic and overseas customers are warmly welcome to visit our factory. We can arrange workshop tour, prototype test demonstration and technical meeting. Please make appointment in advance. Our professional technical & sales team will receive you. You can watch liquid co2 pump assembly process and cryogenic performance test on site, discuss customized project solution face to face.
FAQ
Q: Does co2 pump easily get cavitation on dry ice line?
A: Our pump adopts anti-cavitation structure to reduce cavitation risk for dry ice working condition.
Q: What warranty for liquid co2 pump?
A: 12 months warranty from shipment date, consumable parts excluded.
Q: Can liquid co2 pump run 24h continuously for dry ice factory?
A: Yes, designed for continuous production line of dry ice plant.
Q: Do you supply spare parts for cryogenic co2 pump?
A: Yes, original seal, plunger, valve core are available.
Q: Can liquid co2 pump match with CO₂ storage tank?
A: Yes, it can work together with low temperature liquid CO₂ storage tank system.
Q: Can we use VFD to control liquid co2 pump flow?
A: Yes, VFD option for flow adjustment according to production line load.
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