Products
Mounting Flanges
Koflex FM approved flexible sprinkler connections for duct is installed to protect industrial ducts. The complete unit comes with the welded type 1″ x 1/2″ flex hose, a flange, and a poly bag to protect the sprinkler head. The flange is available in two types: circular flange for square duct and square flange for round duct. The flex hose comes in 2.5ft., 3.9ft., and 5.6ft. Unlike traditional hard pipe installations, Installation of Easyflex flexible sprinkler connection system only takes about 10 minutes per head and can be done without shutting down and draining the sprinkler system.
-Applicable for round and square ducts
-Pre-installed double layer polybag protects the life of sprinkler head.
Technical Data
BRAIDED FLEXIBLE SPRINKLER DROPS APPLIANCE STANDARDS
National Fire Protection Association (NFPA):
NFPA 13: Standard for installation of sprinkler systems
NFPA 13D: Standard for the installation of sprinkler systems in one and two-family dwellings and manufactured homes
NFPA 13R: Standard for installation of sprinkler systems in residential occupancies up to and including four stories in height
NFPA 13 Section 9.2.1.3.3.3: Hangers are not required for flexible connections as long as the length does not exceed 6 ft.
Factory Mutual (FM), FM Class No. 1637:
Approved standard for flexible sprinkler hose with threaded end fittings
ROUND DUCT APPLICATION
SQUARE DUCT APPLICATION
SPECIFICATIONS
| Lengths Available | 30″, 47″, and 67″ | ||
| Connection | Inlet – 1″ | ||
| Outlet – 1/2″ |
MATERIALS
| Hose/Braid | Stainless Steel 304 | ||
| Flange | ABS (Duct) | ||
| Tube & Nipples | Stainless Steel 304 | ||
| O-Ring | EPDM |
TECHNICAL DATA
| Hose Type | Braided | ||
| Max. Temperature | 225°F | ||
| Max. Pressure | 174 psig | ||
| Min. Bend Radius* | 8″ | ||
| K-Factor (1/2″ Outlet) | 5.6 |
*Do not bend within 2.25″ from connection nuts
FRICTION LOSS DATA
| Model# | Length | Outlet Size | Max.# of 90° Bends | Equivalent Length of 1″ Sch. 40 Pipe in ft. | |||||
| EFDS-01A | 30″ | 1/2″ | 1 | 8.7′ | |||||
| EFDS-02A | 47″ | 1/2″ | 3 | 16.7′ | |||||
| EFDS-03A | 67″ | 1/2″ | 4 | 22.5′ | |||||
Republic of Korea
21 Yangpyeong-ro, Yeongdeungpo-gu, Seoul, Republic of Korea
