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Viking VKFD25U Technical Data Manual page 3

Pre-assembled flexible sprinkler drop assemblies unbraided

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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: techsvcs@vikingcorp.com
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 3: MODEL VKFD25U FRICTION LOSS DATA WITH 4" (102 mm) MINIMUM BEND RADIUS
Hose Length
Outlet Size
with Fittings
1/2"
*Indicates standard Viking offering. Other hose lengths are available-contact Viking Technical Services at 877-384-5464 for friction loss data.
TABLE 2: KITS AVAILABLE FOR REPLACEMENT COMPONENTS
16042
14387
14388
14409
14389
14390
14408
14400
14401
16043
14411
14391
16040
Equivalent Length of UL 1"
Schedule 40 Pipe (ft.)
39-3/8"*
TECHNICAL DATA
1/2" x 25 mm hose straight outlet fitting kit (10) / package
Short rail bracket kit (20) / package
Short rail clip kit (20) / package
Short rail clip support (20) / package
Tall rail bracket kit (20) / package
Tall rail clip kit (20) / package
Tall rail clip support (20) / package
Thumb screws outlet fitting M6 x 15 mm long (12) per kit
Thumb screws rail brackets M6 x 20 mm long (25) per kit
EPDM Seals for 25 mm hose assembly (20) / package
Rectangle nut for sprinkler outlet bracket (12) / package
Outlet reducer support bracket (10) / package
Inlet nipple (10) / package
Equivalent Length of UL
1" Schedule 40 Pipe (m)
52 ft
MODEL VKFD25U
PRE-ASSEMBLED FLEXIBLE
SPRINKLER DROP
ASSEMBLIES
Maximum Number
15.8 m
Sprinkler 138i
(UNBRAIDED)
of 90° Bends
2

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