Wet Pipe Sprinkler System is an essential and reliable fire protection solution. In this system, the pipes remain constantly filled with pressurized water, allowing for rapid activation when a fire occurs. Wet-pipe sprinkler systems are ideal for environments with no risk of freezing, and the ambient temperature should not exceed 95°C. In areas prone to freezing, the sprinkler system must include protective measures like an antifreeze system or electrically monitored heating cables.
In this guide, you will find detailed information about the wet-pipe sprinkler system, including its sizes, pressure classes, valve configurations, and applications.

Wet Pipe Sprinkler System Product Description
Available Sizes
Wet-pipe sprinkler systems come in various sizes to suit different installation needs:
- 1 ½” to 8″ (40 – 200 mm)
Pressure Class
The pressure class ratings for different pipe sizes are as follows:
- 1 ½” to 6″ (40 – 152.4 mm): Rated at 300 psi (2068 kPa / 20 Bar)
- 8″ (200 mm): Rated at 232 psi (1600 kPa / 16 Bar). See section 5.0 for more details.
Valve Configurations
Wet-pipe systems offer multiple valve configurations, providing flexibility for different fire protection setups:
- Bare (no additional components)
- Pre-trimmed (pre-assembled for easier installation)
- Vic-Quick Riser: This pre-trimmed configuration includes the following components:
- Shut-Off Valve:
- 1 ½” (40 mm): Series 728 Ball Valve
- 2″ to 8″ (50 – 200 mm): Series 705 FireLock Butterfly Valve
- Drain Connection Kit
- Fire-Pac Series 745: Refer to Victaulic publication 30.23 for installation details.
- Shut-Off Valve:
Pipe Preparation
The system uses the Victaulic Original Groove System, making pipe connections secure and installation straightforward. This system provides reliability and ensures the system works properly in emergencies.
Application/Media
This wet-pipe system is specifically designed for fire protection purposes. It should only be used in buildings where the system’s fire suppression capabilities are needed. The system suits commercial, industrial, and residential properties.
Benefits of Wet Pipe Sprinkler Systems
- Rapid Response: Since the pipes are filled with pressurized water, the system activates immediately when a fire is detected. This fast response minimizes the spread of flames and damage to the building.
- Simple and Reliable: Wet-pipe systems are easy to install and maintain. They have fewer components compared to other sprinkler systems, reducing the risk of malfunctions.
- Ideal for Non-Freezing Environments: These systems are perfect for areas where freezing is not a concern. They provide continuous, reliable fire protection.
- Flexible Configurations: The system offers various sizes, pressure classes, and valve configurations, which allow customization based on the needs of the building.
Applications of Wet Pipe Sprinkler Systems
Wet-pipe sprinkler systems are widely used in many types of buildings, such as:
- Commercial Properties: Offices, shopping malls, and retail stores.
- Industrial Facilities: Warehouses, factories, and distribution centers.
- Residential Buildings: Apartments, hotels, and dormitories.
- Public Spaces: Libraries, theaters, museums, and educational institutions.
These systems provide protection against fire around the clock, ensuring safety and peace of mind for occupants.
Conclusion
A wet-pipe sprinkler system offers a quick and effective solution for fire protection. With water always in the pipes, the system provides a fast response to fire incidents, minimizing damage. Wet-pipe systems are ideal for environments without freezing concerns, ensuring that fires are suppressed rapidly when they occur. By choosing the right size, pressure class, and valve configuration, you can ensure your fire protection system works optimally.