DJW300ET Breathing Air Filling Pump
DJW300ET Breathing Air Filling PumpThis model is specifically designed for filling breathing air cylinders and is widely used in firefighting, diving, emergency rescue, and industrial gas charging applications. The unit features a three-sta···
产品介绍
DJW300ET Breathing Air Filling Pump This model is specifically designed for filling breathing air cylinders and is widely used in firefighting, diving, emergency rescue, and industrial gas charging applications. The unit features a three-stage compression, three-cylinder configuration, with a flow rate of 300 L/min and a maximum rated working pressure of 350 bar, enabling efficient production and filling of high-pressure air. The power section is equipped with a 380V/7.5kW motor running at 1800 RPM, smoothly driven via belt transmission. It adopts air cooling and a forced oil pump lubrication system, complemented by a visual oil level window for easy daily monitoring of lubricating oil status.
DJW300ET Breathing Air Filling Pump – Technical Specifications
| Parameter | Original Unit | Converted Value (International Customary Units) |
|---|---|---|
| Model | DJW300ET | — |
| Application | Breathing air cylinder filling (firefighting/diving/rescue) | — |
| Compression stages | 3 stages | — |
| Number of cylinders | 3 cylinders | — |
| Flow rate (displacement) | 300 L/min | 10.6 CFM (cubic feet per minute) |
| Rated working pressure | ≤ 350 bar | ≤ 5,076 psi (approx. 5,000 psi class) |
| Drive motor | 380V / 50Hz | Three‑phase industrial power |
| Motor power | 7.5 kW | 10 HP (horsepower) |
| Motor speed | 1800 RPM | — |
| Transmission method | Belt drive | — |
| Cooling method | Air‑cooled | — |
| Lubrication method | Forced oil pump lubrication with visual oil level window | — |
| Shutdown mode | Automatic shutdown upon overpressure | — |
| Discharge (condensate) method | Manual discharge | — |
| Filling outlets | G5/8 × 2 pieces (standard) | Simultaneously fills 2 cylinders |
| Filling hoses | 2 sets (included) | — |
| Intermediate safety valves | 3 (one per stage) | — |
| Optional control | PLC intelligent control system (auto start/stop, data monitoring) | — |
| Dimensions (L×W×H) | 1300 × 640 × 700 mm | 51.2 × 25.2 × 27.6 inches |
| Net weight | 147 kg | 324 lbs |
DJW300A Core Product Advantages
High‑efficiency filling
Three‑stage compression, flow rate 300 L/min, pressure 330 bar, simultaneous filling of two cylinders for high productivity.Multi‑level safety
Independent safety valve on each stage + automatic shutdown upon reaching set pressure, eliminating overpressure risks.Designed for breathing air applications
Suitable for firefighting, diving, and industrial safety gas supply; recommended with a purification system to meet breathing air quality standards.Convenient operation
Oil sight glass, manual drain, dual filling connections – ready for immediate use.Smart expandability
Optional PLC control for automated management.
DJW300ET Application Fields
Fire & Rescue: filling breathing apparatus cylinders
Diving Operations: filling commercial/recreational diving cylinders
Industrial Gas Supply: pneumatic equipment, purging, pressure testing
Cylinder Inspection: pre-pressurization for hydrostatic/leak testing
Petrochemical: pipeline purging, displacement
Research & Military: high-pressure testing, wind tunnel air supply
Power & Rail Transit: switchgear, gas‑insulated equipment air supply
Reasons to Choose Us
1. Dual-Brand Strategy for Targeted Service
We operate under two brands – Dejue (Shanghai) Compression Machinery Co., Ltd. focuses on overseas markets, while Baosi Compressor (Shanghai) Co., Ltd. serves the domestic Chinese market. Wherever you are, we provide products that comply with local standards and professional services tailored to your needs.
2. In‑House R&D and Strong Manufacturing Capability
Our facility covers 20 mu (approx. 13,334 m² / 3.3 acres), featuring standardized production workshops and a comprehensive quality control system. From R&D to manufacturing, every step is under our strict control, ensuring each unit meets rigorous quality requirements.
3. Full Product Range for Diverse Needs
Our portfolio includes high‑pressure air compressors, breathing air filling pumps, firefighting and diving dedicated inflators, medium‑pressure blow‑moulding compressors, screw compressors, natural gas compressors, nitrogen boosters, and more. Maximum working pressure reaches up to 50 MPa (500 bar / 7,250 psi), with maximum flow up to 50 m³/min (1,765 CFM). No matter your compressed gas requirement, we have a solution.
4. International Standards, Proven Reliability
Designed with global engineering concepts, our equipment features advanced structures and easy operation and maintenance. Selected materials and mature processes ensure long‑term stable performance, rivaling that of European and American counterparts.
5. Cost‑Effective – Significantly Lower Total Cost of Ownership
We deliver quality equivalent to imported equipment while substantially reducing both initial purchase and lifecycle costs, giving you a higher return on investment.
6. Extensive Application Experience
Our products are widely used in diving breathing, firefighting breathing, leak testing, PET blow‑moulding, industrial gas supply, and many other fields. With rich industry experience, we can provide professional recommendations tailored to your specific applications.
7. Flexible Cooperation and Full‑Cycle Support
Overseas customers are served through our Dejue brand, offering products that meet local standards and comprehensive export services. Domestic customers can rely on our Baosi brand for localized support, flexible agency policies, and customised integration solutions. From selection to after‑sales, we accompany you every step of the way.
Choose us for professionalism, reliability, efficiency, and a long‑term partnership built on mutual success.
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