Xtralis vesda LaserFOCUS VLF-500 User Manual

VESDA
®
LaserFOCUS VLF-500 Product Guide
17
Single pipe network
The table below shows the appropriate hole sizes for pre-engineered designs for a single pipe
set up.
Table 3 - Single pipe hole numbers and sizes
*For code-specific information, see Codes and Standards Information for Air Sampling Smoke
Detection on page iv.
The set up below shows a single pipe arrangement with 4 sampling holes and a fitted end cap
without a sampling hole.
Figure 17 - Open hole, single pipe
Single Pipe Network – max. length 50 m (150ft.)
Sampling
holes
ID 21 mm Pipe IPS ¾ in. Pipe
Open Hole 5.2 mm Capillary*
with 5 mm hole
Open Hole
3
/
8
in. Capillary*
with
1
/
8
in. hole
Hole Size (mm) Length (m) Hole Size (in.) Length (ft.)
5 4.0 – 5.0 0 – 1.8
5
/
32
–
7
/
32
0 – 12
6 3.5 – 4.5 0.3 – 1.8
5
/
32
–
7
/
32
0 – 12
7 3.5 – 4.0 0.5 – 2.0
5
/
32
–
3
/
16
0 – 12
8 3.5 – 4.0 0.8 – 2.2
5
/
32
–
3
/
16
0 – 12
9-24* Use ASPIRE2 to calculate hole sizes in this range*
C
B
A
Legend
A Smoke detector B Sampling hole C End cap (no hole)

Xtralis vesda LaserFOCUS VLF-500 Specifications

General

Brand	Xtralis
Model	vesda LaserFOCUS VLF-500
Category	Smoke Alarm
Language	English