MODEL VKFD25U
PRE-ASSEMBLED FLEXIBLE
SPRINKLER DROP
ASSEMBLIES
(UNBRAIDED)
TECHNICAL DATA
September 17, 2009
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
3. For frame style sprinkler VK302 (temperature ratings 135 °F-200 °F only), add the Escutcheon and Escutcheon Finish Suffix:
A. For frame style sprinkler VK302 with the Model E-1 Recessed Escutcheon: Add the suffix “/1F” for Chrome or “/1W” for White
B. For frame style sprinkler VK302 with Model E-2 Recessed Escutcheon: Add the suffix “/2F” for Chrome or “/2W” for White
C. For frame style sprinkler VK302 with the Model F-1 Adjustable Escutcheon: Add the suffix “/3F” for Chrome or “/3W” for White
Examples:
1. Model VKFD25U Flexible Sprinkler Drop Assembly for concealed sprinkler VK462 with a 155 °F/68 °C temperature rating = Part
Number 13503AB/16038-10.
2. Model VKFD25U Flexible Sprinkler Drop Assembly with frame style sprinkler VK302 with a 155 °F/68 °C temperature rating,
chrome finish, and the Model E-2 Escutcheon = Part Number 06662BFB/16038-10/2F.
Note for Concealed Sprinkler VK462:
The cover plate must be ordered separately (refer to the sprinkler technical data
page and Viking’s current price list).
NOTE:
Hose assemblies ordered from Viking only come with straight outlet as standard.
Available to Order Separately:
Optional 4” Bend Radius Gauge Tool Part No. 15450 (plastic)
Optional 4” Fixed Radius Clip Part No. 14403 (plastic)
The Following Kits are Available for Replacement Components:
Note: These kits may be ordered in addition to the above for replacing components as required. A 49-3/16” (1,250 mm) long support
bar is available when the main support beams are spaced at 4 ft. (1,219 mm). These must be ordered separate from the standard
lexible Sprinkler Drop Assembly.
Friction Loss Data:
TABLE 2: KITS AVAILABLE FOR REPLACEMENT COMPONENTS
16042
1/2” x 25 mm hose straight outlet fitting kit (10) / package
14387
Short rail bracket kit (20) / package
14388
Short rail clip kit (20) / package
14409
Short rail clip support (20) / package
14389
Tall rail bracket kit (20) / package
14390
Tall rail clip kit (20) / package
14408
Tall rail clip support (20) / package
14400
Thumb screws outlet fitting M6 x 15 mm long (12) per kit
14401
Thumb screws rail brackets M6 x 20 mm long (25) per kit
16043
EPDM Seals for 25 mm hose assembly (20) / package
14411
Rectangle nut for sprinkler outlet bracket (12) / package
14391
Outlet reducer support bracket (10) / package
16040
Inlet nipple (10) / package
Sprinkler 138i
TABLE 3: MODEL VKFD25U FRICTION LOSS DATA WITH 4” (102 mm) MINIMUM BEND RADIUS
Outlet Size
Hose Length
with Fittings
Equivalent Length of UL 1”
Schedule 40 Pipe (ft.)
Equivalent Length of UL
1” Schedule 40 Pipe (m)
Maximum Number
of 90° Bends
1/2”
39-3/8“*
52 ft
15.8 m
2
*Indicates standard Viking offering. Other hose lengths are available-contact Viking Technical Services at 877-384-5464 for friction loss data.
