Beijing  Topsky  Century Holding Co.,Ltd
                                                                                                           
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HYZ4(B) Self-Contained Closed Circuit Breathing Apparatus - 4 Hour Duration, 20MPa Oxygen Pressure, 12kg Weight

Price Negotiable
Price: Negotiable
MOQ: 1 Set
Delivery Time: Negotiable
Brand: TOPSKY
Product Description
HYZ4(B) Self-Contained Closed Circuit Breathing Apparatus
Professional 4-hour self-contained breathing apparatus designed for emergency response in toxic environments with integrated cooling system and ergonomic design.
Applications
The HYZ4(B) Self-Contained Closed Circuit Breathing Apparatus is engineered for emergency response teams performing life-saving operations and firefighting missions in hazardous environments. This equipment provides critical respiratory protection in mines, tunnels, underground train ducts, and other confined spaces where toxic gases or oxygen-deficient conditions pose serious threats to safety.
Key Features
  • Extended 4-hour breathing oxygen supply for prolonged operations
  • Integrated cooling system for enhanced breathing comfort
  • Ergonomically designed carrying plate for optimal weight distribution
  • Well-balanced system to minimize user exposure to hazards
  • Advanced harness system with intelligent breathing hose routing for maximum freedom of movement
Technical Specifications
Parameter Specification
Duration of Use 4 hours
Working Pressure for Oxygen Bottle 20 MPa
Capacity for Oxygen Bottle 2.7 L
Oxygen Storage 540 L
Breathing Rate 30 L/min
Exhaling Resistance 0-600 Pa
Inhaling Resistance ≤600 Pa
Fixed Oxygen-supplying ≥1.4-1.8 L/min
Automatic Oxygen-supplying ≥100 L/min
Manual Oxygen-supplying ≥100 L/min
Start Pressure for Auto-supplying Valve 10-245 Pa
Inhaling Carbon Dioxide Concentration ≤1%
Inhaling Oxygen Concentration >21%
Weight (Ready for Use) 12 kg (including mask, full oxygen cylinder, CO2 absorber and cooling ice)
Dimensions (H x W x D) 177 x 96 x 227 mm
Professional Reliability
Trusted by over 10,000 professional users across China, the HYZ4(B) combines uncompromising safety standards with outstanding respiratory protection and superior wearer comfort. The innovative design ensures reliable performance in the most demanding emergency situations.

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Company Beijing  Topsky  Century Holding Co.,Ltd
Location 10B NO.17 HuanKe Middle Road Jin Qiao Industry Base Tongzhou District Beijing China 101102
Contact Person Yang

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