The NFPA® 22 Standard for Water Tanks for Private Fire Protection sets the minimum requirements for the design, construction, installation, and maintenance of water tanks and their accessories. Chapter four covers the general requirements while the other chapters go into depth by the type of water tank.
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1. Capacity and Elevation (4.1):
The size and elevation of the water tank are determined by the individual property conditions, after due consideration of all of the factors involved.
2. Water Sources (4.2):
The water source for filling the tank needs to be adequate and dependable, with allowance for its reliability in the future. If the water supply from a public service main isn’t adequate in quality, quantity or pressure (measured in fire flow for fire protection)- an alternative water source needs to be provided (like an extra water storage tank on the property).
3. Location of Tanks (4.3):
The tanks need to be located so that the tank, as well as the structure, are protected from fire exposure in accordance with NFPA 22 standard chapter 220.127.116.11 through 18.104.22.168.
4. Tank Materials (4.4):
Water tank materials are limited to steel, wood, concrete, coated fabrics and fiberglass-reinforced plastic tanks.
5. Workmanship (4.5):
Tank manufacturers are expected to comply with these requirements set forth as well as providing structures that are proven reliable under all specified conditions. Manufacturers will replace all defective parts due to faulty materials or workmanship as well as provide careful inspection during fabrication and install.
6. Plans (4.6):
Contractors will provide stress sheets, plans required, the authority having jurisdiction for approval or for obtaining building permits and licenses. The jurisdiction for approval of layouts will be given complete information covered in NFPA 22 standard chapter 22.214.171.124.
Pioneer Technical Specifications, We Offer Complete Engineering Packages
7. Tank Contractor Responsibility (4.7):
Experienced contractors will handle all of the necessary work with careful workmanship and expert supervision. The manufacturer shall warranty the tank for at least 1 year from the date of completion. Once the tank is complete, the contractor will test the tank for being watertight and notify the authority for official inspection. Contractors will remove and dispose of any trash on-site, in accordance with NFPA 241.
Our accredited dealer and installation network are held by contract to the Pioneer Water Tank workmanship standards and expert project supervision. We offer a 20-year warranty from date of completion. The following is one example of an installation in California.
8. Attachments to Tank Structures (4.8):
If the water tank will be used to support signs, flagpoles, steel stacks, etc, they need to be specifically designed for that purpose. Each tank shell manway will have a confined entry requirement signposted.
We offer a full line of optional engineered accessories for multiple water storage applications, including firefighting adapters and nozzles manufactured to NFPA standards.
9. Lightning Protection (4.9):
Water tanks will be installed according to NFPA 780 to prevent lightning damage.
10. Strength (4.10):
The tank material is required to be without defects that affect its strength or service. The workmanship quality of the tank will be so that defects or injuries aren’t produced during the tank manufacturing or installation. The tank structure needs to have the required strength and rigidity set forth.
Pioneer Water Tanks are third-party tested, certified and warranty-backed for everything stated in our engineering packages.
11. National Standards (4.11):
Only tank materials produced and tested in accordance with the requirements of a recognized national standard and within the mechanical (strength), metallurgical, and chemical limitations of one of the material grades specified by NFPA 22 will be permitted.
12. Loads (4.12):
Water tank load requirements