Tyco FASTFLEX YN25 Assembly

TFP720
Page 5 of 8
LPCB - Design Criteria
• Refer to Table A for Model, Nominal Assembly Length,
and Sprinkler Reducer combinations
• Wet-pipe systems only
• Maximum service pressure of 16 bar
• Sprinklers with nominal K57, K80, or K115
• Maximum ambient temperature of 148°C for YN25
• Approved as a Type 2 hose of moderate exibility
in accordance with LPS 1261. They may be used in
applications where little or no differential movement
between the two ends is expected after installation
(e.g., supply to single sprinklers in suspended ceilings)
• Approved for the following locations:
Assembly
Length in
millimeters
Pre-Calculated
Town Mains
Pre-Calculated
Pumps
Fully
Hydraulically
Calculated
Up to 700 Yes Yes Yes
Up to 1200 No Yes Yes
Up to 3700 No No Yes
• All pipe work supplying FASTFLEX in pre-calculated
systems shall be sized as distribution mains
• In suspended ceilings FASTFLEX must be installed in
accordance with this data sheet
• In suspended ceiling, sprinkler reducer must be
connected to the ceiling support system with brackets
supplied. For other applications the installer must
supply brackets to ensure sprinkler is secure
• Minimum bend radius of 55 mm
• LPCB Friction Loss for YN25:
Assembly
Length
in
millimeters
Number
of 90°
Bends
Equivalent
Length*
of DN25
Sch. 40 Pipe
C=120
in meters
700 2 8,9
1000 2 13,5
1200 2 11,9
1500 2 18,7
1800 3 24,7
2000 3 20,7
2500 3 21,7
2700 3 24,2
3100 3 25,9
3700 3 30,3
* Add 2,3 meters when using a 45° or 90° sprinkler reducer.
VdS - Design Criteria
• Refer to Table A for Model, Nominal Assembly Length,
and Sprinkler Reducer combinations
• Wet-pipe systems only
• Maximum service pressure of 16 bar
• Pendent sprinklers with nominal K57, K80, or K115
• Maximum ambient temperature of 107°C for YB25 and
YB28
• Approved for use only in the following suspended
ceilings:
Odenwald Systems- S3 & S15
Richter Systems- 11.1 - 11.5
Armstrong Systems- Board and Tegular with panel type
“Prima Sahara”
API Systems- 15/38, 24/38, 24/60, 35/38, and 35/60
with panel type of a.m.
• VdS Friction Loss
• For compensation of pressure loss, the nominal
assembly length is to be multiplied by 12. The resulting
length will provide pressure drop in equivalent length
DN20 (26,9 x 2,3 mm) seamless metal tube per DIN
2448
• Add 2,3 m when using a 45° or 90° sprinkler reducer
• Minimum bend radius of 55 mm
• The tube assembly may not have more than one 90°
bend or four 15° bends

Tyco FASTFLEX YN25 Specifications

General

Brand	Tyco
Model	FASTFLEX YN25
Category	Irrigation System
Language	English