Design and installation guide
Wet-pipe sprinkler system: selection and application guide
In a wet-pipe arrangement, sprinkler piping contains water during normal operation. Discharge begins through an automatic head opened by heat, with design based on the space fire load and water-supply capacity.
A wet-pipe sprinkler system keeps the pipe network filled with water and discharges it to the fire area when heat opens the sprinkler head. It is commonly selected for offices, homes, hotels, shops, hospitals and similar buildings without freezing risk.
01
Operating arrangement and engineering
Selection considers the product function, the protected risk and operating conditions together. These steps support the site survey and quotation.
Head operation and water flow
Thermal operation of the automatic sprinkler and monitoring of water flow serve different functions. Check head selection, placement and flow alarm as coordinated design elements.
Freezing and environmental conditions
Assess freezing risk for water-filled piping. Survey building heating, pipe routes, corrosion and impact exposure.
Hydraulic calculations and layout
Calculate hazard classification, storage or process data, pipe sizes and water demand at the critical point together. Pump, tank and head/nozzle selection are elements of this design.
Testing and maintenance
Verify water supply, valve/alarm functions and the relevant system scenario during commissioning. Record system-specific testing and maintenance tasks in operating records.
02
Applications and site planning
These examples show why placement and equipment requirements can differ between facilities using the same product.
Heated production and commercial areas
- Site requirement
- Changing use and installation routes.
- Application approach
- Select heads against hazard classification, ceiling layout and obstructions.
Storage and racking areas
- Site requirement
- Stored goods, packaging and rack height.
- Application approach
- Reassess storage changes for hydraulic demand and sprinkler placement.
03
Pre-quotation checklist
Scroll the table horizontally to view every column.
| Check item | Product / application | Information to assess |
|---|---|---|
| System arrangement | Water-filled pipe during normal operation | Design diagram and operating scenario |
| Water supply | Pump, tank and pipe network | Hydraulic demand and available supply |
| Space | Fire hazard and environmental conditions | Storage, temperature and obstructions |
| Handover and maintenance | Function tests and records | System-specific inspection plan |
Select the sprinkler arrangement through a combined assessment of hazard, environment and water supply. Survey and engineering calculations establish its layout, equipment and operating scope.