
Low Pressure Liquid Oxygen Plant
Description
Technical Parameters
China Low pressure Liquid Oxygen Plant
Low-Pressure Safety & Reliability: Operates at 0.3-0.6 MPa, minimizing leakage, explosion risks, and equipment wear; ideal for safety-sensitive environments like hospitals and densely populated industrial zones.
Energy Efficiency & Cost Savings: Optimized low-pressure process design reduces energy consumption by 20%-25% vs. high-pressure counterparts; lower operational and maintenance costs due to simplified system structure.
Flexible Deployment & Scalability: Modular configuration supports capacity scaling (50-50,000 Nm³/h) without disrupting operations; compatible with road/air transport for remote or emergency deployment.
High Purity & Stable Output: Integrates PSA and cryogenic separation technologies to maintain 95%-99.9995% oxygen purity; PLC automatic control ensures consistent performance and real-time parameter monitoring.

working principle
Low-Pressure Air Preprocessing
Ambient air is drawn into a low-pressure compressor (0.3-0.6 MPa), then filtered to remove dust, oil, and moisture, protecting downstream components.
PSA Adsorption Purification
Dual-tower molecular sieves selectively adsorb nitrogen and impurities, producing 90%-95% pure oxygen continuously through alternating adsorption-regeneration cycles.
Cryogenic Liquefaction
Oxygen-rich gas is cooled to -170℃~-196℃ via cryogenic refrigeration; rectification towers separate residual nitrogen by boiling point differences, condensing pure oxygen into LOX under low pressure.
Low-Pressure Storage & Output
LOX is stored in vacuum-insulated tanks to minimize cold loss; output is regulated via low-pressure vaporizers or direct LOX extraction, with PLC dynamic adjustment for stable flow and purity.

why choose nEWTEK?
✅️Technical Prowess & Project Experience: As a global leader in gas solutions, NEWTEK boasts 20+ years of air separation expertise, with successful deliveries including Ghana's 30,000 Nm³/h and Peru's 4×40,000 Nm³/h air separation projects, validating its low-pressure technology maturity.
✅️Top-Tier Partnerships & Quality Assurance: Joint R&D with Hangzhou Oxygen Plant (China's leading air separation enterprise) ensures premium components; multi-stage quality inspections align with international standards for reliable performance.
✅️Customized Solutions: Leveraging "PSA + Cryogenic" dual technology platforms, NEWTEK tailors low-pressure systems to client-specific capacity, purity, and application needs, complemented by end-to-end services (design, installation, training).
✅️ Service & Rapid Support: With 10+ regional service centers worldwide, NEWTEK offers 24/7 bilingual technical support, 48-hour on-site response for overseas projects, and global spare parts warehouses enabling 72-hour component delivery.
✅️Cost-Effective Operations: Competitive pricing (15%-20% lower than international peers) combined with energy-efficient low-pressure design reduces long-term operational costs by 30%-40%.
FAQ
Q1: What is the operating pressure range, and how does it enhance safety?
A1: Operates at 0.3-0.6 MPa, lowering leakage and explosion risks, making it suitable for safety-sensitive environments like hospitals.
Q2: Can it meet medical-grade oxygen standards?
A2: Yes. The medical variant delivers LOX with ≥99.5% purity, complying with GB 8982-2014 and ISO standards for clinical use.
Q3: How much energy does it save compared to high-pressure plants?
A3: 20%-25% more energy-efficient, thanks to optimized low-pressure processes and high-quality core components.
Q4: What is the installation timeline for different capacities?
A4: Small-scale (≤500 Nm³/h): 1-2 weeks; large-scale (≥10,000 Nm³/h): 3-6 months, with NEWTEK's professional team ensuring efficient deployment.
Q5: Is capacity expansion possible in the future?
A5: Yes. Modular design allows adding modules without modifying existing systems, supporting seamless capacity scaling as demand grows.
Q6: What warranty and after-sales support are provided?
A6: 1-year full machine warranty, 2-year warranty for core components; lifetime remote troubleshooting, spare parts supply, and on-site maintenance.
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