The Fire Pressure Stabilization Complete Equipment integrates a diaphragm-type pressure tank, fire water storage, and intelligent constant-pressure control into a single compact unit. This design addresses the most common failure points in traditional fire stabilization systems — membrane degradation, excessive maintenance intervals, and unreliable pressure hold — while maintaining full compliance with China’s 98S205 standard for fire pressure boosting equipment.
Why Diaphragm Pressure Tank Design Matters
Traditional fire stabilization systems use bladder-type pressure tanks where the rubber membrane is in direct contact with system water. Over time, the membrane fatigues from repeated compression cycles, develops micro-cracks, and eventually fails — causing pressure loss at the most critical moment. The diaphragm-type tank separates water and air completely through a flexible membrane, eliminating membrane contact with water and extending service life significantly.
Key Technical Parameters
| Pressure Configuration | 0.6 MPa / 1.0 MPa / 1.6 MPa |
| Fire Water Storage | ≥150 L / 300 L / 450 L |
| Stabilization Water Storage | ≥50 L |
| Constant Pressure Precision | ≤±0.01 MPa |
| Design Service Life | ≥15 years |
| Ambient Temperature | 0 – 40°C |
| Humidity | ≤95% (no condensation) |
| Altitude | ≤1000m (customizable above) |
| Power Supply | 3-phase 380V ±10% / 50Hz |
| Dual Power Switching | ≤3 seconds |
Extended Service Life: 40% Longer Than Traditional Systems
The diaphragm pressure tank’s one-time gas charge design eliminates the need for periodic re-charging. Combined with name-brand electrical components that pass accelerated aging tests, the complete unit achieves a design service life of 15 years or more — 40% longer than conventional bladder-type stabilization equipment. The diaphragm resists fatigue and corrosion, maintaining seal integrity through thousands of pressure cycles.
Reduced Maintenance: Single-Person One-Hour Service
The modular integrated design allows routine maintenance without specialized tools. A single technician can complete gas pressure verification and component replacement within one hour. Key maintenance advantages include:
- No embedded anchor bolts required — vibration isolators enable level adjustment on-site
- Standard flange/thread interfaces with flexible rubber joints absorb piping stress
- Control panel junction box faces outward for easy cable access
- Ground resistance requirement: ≤4Ω
- Pre-charge pressure verification: 70-80% of system working pressure
Compliance with 98S205 and GB 50974-2014
The equipment is designed and manufactured strictly according to the 98S205 national standard atlas for fire pressure boosting equipment. Key compliance features include:
- Initial water supply: Built-in ≥150L fire water storage provides water during the critical 30 seconds before the main fire pump starts, meeting GB 50974-2014 core acceptance requirements
- Electrical safety: Intelligent control module passes CCC/CE certification per GB 7251.1-2013, protection rating IP54
- Dual power supply: Automatic/manual switching with response time ≤3 seconds
- Factory testing: Each unit completes 1.5x rated pressure static test (5-minute hold), pressure tank seal test, and dual power switching test before delivery
Energy Efficiency: 15-25% Reduction
Intelligent variable frequency drive adjusts pump output on demand, combined with vibration isolators that reduce energy loss. Under rated conditions, the system achieves 15-25% comprehensive energy savings. Fire signal interlocking prevents unnecessary operation, reducing annual electricity costs by 20-30%.
Compact Integration: 35% Less Floor Space
The four-in-one design integrates the stabilization pump, electrical control, pressure tank, and piping into a single footprint. Compared to traditional separate-component installations with the same water storage capacity, floor space is reduced by 35%, lowering machine room requirements and civil construction costs.
Installation and Commissioning
- Foundation flatness: ≤2mm/m
- Maintenance clearance: ≥500mm on all sides
- Indoor installation in dry, ventilated environment
- No embedded anchor bolts needed — vibration isolators handle leveling
- Commissioning sequence: pre-charge verification → dual power check → panel parameter setting → auto-stabilization test → fire signal interlock test → data recording → acceptance
Application Scenarios
- Multi-story buildings: Hydrant system pressure maintenance for residential, office, and commercial buildings
- High-rise buildings: Zoned fire water supply configuration by floor and pressure district
- Sprinkler systems: Network pressure maintenance for shopping malls, hospitals, and factories
- Underground and transit: Complex fire water supply with automatic start/stop and system interlocking
FAQ
Q: How often does the diaphragm pressure tank need replacement?
A: The diaphragm design eliminates direct water contact, extending service life to 15+ years. Actual intervals depend on operating pressure cycles and ambient conditions.
Q: What happens during a power failure?
A: The dual power supply switches automatically within 3 seconds. The pressure tank maintains network pressure during the transition, preventing pressure drop below the fire system’s minimum requirement.
Q: Can the equipment operate at altitudes above 1000m?
A: Yes, custom configurations are available for high-altitude installations. Standard rating applies up to 1000m.
Q: What is the constant pressure precision?
A: The system maintains pressure within ≤±0.01 MPa of the set point, ensuring stable fire network conditions.
Why Choose Chaodun Pump
Chaodun Pump manufactures the Fire Pressure Stabilization Complete Equipment with full control over diaphragm tank design, intelligent control programming, and system integration. Every unit undergoes comprehensive factory testing before delivery. Contact our engineering team for project-specific pressure configuration and water storage sizing.