HomeMy WebLinkAbout405.040 - Flexible Sprinkler Hoses and FittingsEffective Date: July 2021 Justin H. Beal, Fire Prevention Engineer
Current Revision Date: 7/22/2025 Section 405.040
Next Revision (1) Date: 7/22/2028 Page 1 of 2
Fresno City Fire Department
400 Prevention Manual
SECTION 405.040 FLEXIBLE SPRINKLER HOSES AND FITTINGS
PURPOSE
The purpose of this policy is to clarify the Fresno Fire Department’s (FFD or
Department) requirements regarding the design, use and installation of flexible
sprinkler hoses and fittings for all automatic fire sprinkler systems.
APPLICATION
This policy applies to all automatic fire sprinkler system installations, within the City of
Fresno (COF) and contract service areas. These requirements apply to both required
and voluntarily installed automatic fire sprinkler systems.
OPERATIONAL POLICY
Based upon the need for uniformity in application across the Department’s diverse
service delivery area, the Department has determined that when permit applicants
intend to design, use, and install flexible sprinkler hoses and fittings in automatic fire
sprinkler systems, they shall, at a minimum, follow the requirements noted below:
1. Prior to the installation of any flexible sprinkler hoses and fittings, in any
automatic fire sprinkler system, a permit for their installation must be obtained
from FFD.
2. Permit applicants are prohibited from using the “Under 20 head TI” permit
process for the installation of any flexible sprinkler hoses and fittings. Each
proposed installation using flexible hoses and fittings must be accompanied by
plans and hydraulic calculations in accordance with the CFC and National Fire
Protection Association (NFPA) 13, Standard for the Installation of Sprinkler
Systems, prior to commencing work.
3. When permit applicants submit construction documents to FFD for the
installation of flexible sprinkler hoses and fittings, the following items must be
noted on the construction documents:
I. The flexible hose make.
II. The flexible hose model number.
Effective Date: July 2021 Justin H. Beal, Fire Prevention Engineer
Current Revision Date: 7/22/2025 Section 405.040
Next Revision (1) Date: 7/22/2028 Page 2 of 2
III. The flexible hose length.
IV. The flexible hose outlet style.
V. The maximum number of bends permitted for the specified flexible hose
in the application and the bend radius.
VI. The flexible hose installation method that will be used for the attachment
to the ceiling, including the bracket assembly.
As noted in NFPA 13, the construction documents must include a submittal book
which has all applicable manufacturer’s installation sheets, including the listing of the
materials and the installation instructions.
OPERATIONAL GUIDELINE
This section intentionally left blank.
PROCESS
This section intentionally left blank.
INFORMATION
As noted in the California Fire Code (CFC) the Department is permitted to specify
requirements for the design, use and installation of flexible sprinkler hoses and fittings
for all automatic fire sprinkler systems.
DEFINITIONS
This section intentionally left blank.
CROSS-REFERENCES
California Fire Code, Currently adopted edition.
NFPA 13, Standard for the Installation of Sprinkler Systems, Currently adopted
edition.