Victaulic VicFlex AB12, Field Installation Handbook

Page: 191 / 204

I-VICFLEX_191 TECHNICAL DATA FOR FLEXIBLE HOSES REV_A
SERIES AH1, AH1-CC, AH1-LP, AND AH1-CC-LP
FLEXIBLE HOSE FRICTION LOSS DATA (VDS)
NOTICE
• The following table contains VDS friction loss data. Always refer to the
applicable “Listing and Approval Information – Flexible Hose and Bracket
Combinations” section to verify the listings/approvals for the particular flexible
hose/bracket combination.
Length of
Flexible Hose
mm/
inches
Outlet
Size
Metric/
inches
Equivalent Length of
Steel Pipe in meters/
feet According to
EN 10255 DN20
(26,9 x 2,65)
Maximum Number
of 90° Bends at
76.2-mm/3-inch
Bend Radius
790
31
DN15/1/2
3.2
10.5
3
DN20/3/4
915
36
DN15/1/2
3.7
12.1
3
DN20/3/4
1220
48
DN15/1/2 4.9
16.1
3
DN20/3/4
1525
60
DN15/1/2
6.1
20.0
4
DN20/3/4
1830
72
DN15/1/2
7.3
24.0
4
DN20/3/4
Only VdS Approved pendent spray sprinklers of 10-mm, 15-mm, and 20-mm nominal diameters with
K-factors of 57, 80, and 115 shall be used.
•
Tested with a 5 3/4-inch/146-mm length straight reducer.
• When using a No. 101 90° Elbow or a No. 102 Straight Tee in place of a Style 108 Coupling on
the end of a Series AH1-CC or AH2-CC Flexible Hose, the friction loss data shown above shall
be added to the No. 101 or No. 102 friction loss data published in Victaulic ® submittal 10.54.
• Flexible Hoses are VdS Approved for use in wet systems only.
NOTE : The VdS Approval applies only for use with specific suspended ceiling systems. Refer to the
“Construction Requirements” section of this handbook.
• Other manufacturers’ ceiling systems, with comparable or better performance, can be
considered for approval.
• VdS standards for safety include, but are not limited to: pressure cycling, corrosion resistance,
flow characteristics, vibration resistance, leakage, mechanical strength, and hydrostatic
strength.
• Differences in equivalent lengths are due to varying test methods, per FM 1637 and VdS
standards. Refer to these standards for additional information regarding friction loss test
methods.