QHYX-GDL Fire Sprinkler Water Supply Equipment

QHYX-GDL Fire Sprinkler Water Supply Equipment

QHYX-GDL Automatic Sprinkler Booster Set (Intelligent) | Intelligent packaged booster for stable sprinkler network pressure

  • Intelligent pressure control: Maintains set pressure under variable sprinkler network demand.
  • Packaged architecture: Pump set + controller + pressure-maintaining module for fast integration.
  • Multi-pump coordination: Automatic staging/alternation to balance runtime and match duty.
  • System-ready interfaces: Standard sensing, alarm/status, and manual/auto control functions for commissioning.
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Product Overview

QHYX-GDL Automatic Sprinkler Booster Set is an integrated sprinkler pressure stabilization and boosting unit designed for automatic sprinkler pipeline networks.

It resolves standby pressure drop, minor leakage-induced pressure loss, and initial discharge pressure fluctuation without frequent activation of main fire pumps.

It is installed in high-rise buildings, commercial complexes, underground parking facilities, and industrial sprinkler systems requiring intelligent pressure maintenance.

✔ For automatic sprinkler systems requiring stable pipeline pressure and automatic booster response under standby and initial fire conditions

Model Designation

QHYX-GDL Fire Sprinkler Water Supply Equipment

Applications

  • Wet automatic sprinkler systems in high-rise buildings
  • Commercial mall sprinkler protection networks
  • Underground parking sprinkler standby systems
  • Industrial plant automatic sprinkler loops
  • Fire pump rooms requiring intelligent pressure monitoring

Engineering Advantages

  • Vertical multistage GDL booster pump ensures high-head compact boosting
  • Intelligent control cabinet enables automatic pressure sensing and start-stop logic
  • Pressure tank buffering reduces frequent cycling and stabilizes system pressure
  • Skid-mounted integrated assembly simplifies installation and alignment
  • Dual-pump duty/standby configuration improves operational reliability
✔ Engineered to ensure stable sprinkler standby pressure and rapid response during initial discharge conditions.

System Components

QHYX-GDL Sprinkler Boosting System Components：

  • GDL vertical multistage centrifugal pump (duty/standby)
  • Pressure tank
  • Intelligent fire control cabinet
  • Pressure transmitter / pressure switch
  • Check valves and isolation valves
  • Integrated base frame and piping manifold

Technical Parameters

Service Conditions

Designed for automatic sprinkler system pressure maintenance and initial discharge boosting duty.

Operating Conditions

Flow rate: /h
Head:   m
Power range:  W
Speed:   rpm
Liquid temperature: ≤ 
Working pressure: ≤

Detailed parameter tables are provided below.

Performance Parameters

Applicable buildings
Spray flow
(L/s)
Sprinkler operating
pressure (MPa)
Applicable building height
(m)
Recommended packaged water supply model
Vertical pump set
Building type
Design spray density
(L/min·m²)
Coverage area
(m²)
Industrial (production) building 10 300 60 0.1 ≤12 QHYX60-0.24-100 XBD-GDL-3
Industrial (production) building 10 300 60 0.1 ≤24 QHYX60-0.4-100 XBD-GDL-3
Industrial (production) building 10 300 60 0.1 ≤36 QHYX60-0.6-100 XBD-GDL-3
Industrial (production) building 10 300 60 0.1 ≤50 QHYX60-0.8-100 XBD-GDL-3
Industrial (production) building 10 300 60 0.1 ≤72 QHYX60-1.0-100 XBD-GDL-3
Industrial (production) building 10 300 60 0.1 ≤100 QHYX60-1.2-100 XBD-GDL-3
Storage building 15 300 90 0.1 ≤12 QHYX90-0.24-150 XBD-GDL-3
Storage building 15 300 90 0.1 ≤24 QHYX90-0.4-150 XBD-GDL-3
Storage building 15 300 90 0.1 ≤36 QHYX90-0.6-150 XBD-GDL-3
Storage building 15 300 90 0.1 ≤50 QHYX90-0.8-150 XBD-GDL-3
Storage building 15 300 90 0.1 ≤72 QHYX90-1.0-150 XBD-GDL-3
Storage building 15 300 90 0.1 ≤100 QHYX90-1.2-150 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤12 QHYX40-0.24-100 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤24 QHYX40-0.4-100 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤36 QHYX40-0.6-100 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤50 QHYX40-0.8-100 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤72 QHYX40-1.0-100 XBD-GDL-3
Ordinary hazard 6 300 40 0.1 ≤100 QHYX40-1.2-100 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤12 QHYX15-0.24-65 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤24 QHYX15-0.4-65 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤36 QHYX15-0.6-65 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤50 QHYX15-0.8-65 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤72 QHYX15-1.0-65 XBD-GDL-3
Light hazard 3 300 15 0.1 ≤100 QHYX15-1.2-65 XBD-GDL-3
Users can select suitable models according to the parameters provided above.

How to Select a Pump Model

  • Determine sprinkler system design pressure and minimum required residual pressure
  • Calculate initial sprinkler discharge flow rate
  • Select appropriate pressure tank volume for buffering stability
  • Confirm dual-pump configuration requirement
  • Verify system maximum working pressure does not exceed 1.6 MPa
✔ Model selection must be based on sprinkler design flow, required residual pressure, and standby stabilization volume.

Engineering Notes

  • Booster set should be installed downstream of main fire pump discharge header
  • Pressure tank pre-charge pressure must align with system static pressure
  • Control logic must coordinate with fire alarm interlock system
  • Oversized booster pumps may cause pressure oscillation

Compliance & Quality Assurance

  • Factory hydraulic performance testing of GDL pumps
  • Pressure tank hydrostatic pressure test
  • Electrical cabinet functional verification
  • Insulation resistance and grounding inspection
  • Optional third-party inspection available

Safety Notice

  • Do not operate under dry-running condition
  • Ensure correct pressure setting before commissioning
  • Disconnect power before maintenance
  • Do not exceed rated working pressure

OEM & Customization

This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.

Available options include:
• Motor voltage & frequency
• Pressure tank capacity selection
• Control cabinet configuration
• Wetted parts material selection
• Surface coating and corrosion protection

Configuration is determined based on duty point and project specifications.

FAQs

Q: Can the booster set operate under VFD control?
A: Yes, VFD integration is available for precise pressure regulation.

Q: What is the maximum allowable working pressure?
A: The maximum allowable working pressure is 1.6 MPa.

Q: Why is a pressure tank required in sprinkler systems?
A: It provides buffering capacity and prevents frequent cycling during minor leakage conditions.

Q: What pump type is used in this booster set?
A: Vertical multistage GDL centrifugal pumps are applied.

Q: Can this unit replace the main fire pump?
A: No, it is designed for pressure maintenance and initial discharge boosting only.

Q: What liquid temperature is allowable?
A: Maximum allowable liquid temperature is 80°C.

Q: Is dual-pump configuration mandatory?
A: Dual duty/standby configuration is recommended for reliability but may vary by project design.