Xtrails VESDA VLF-500-UL User Manual

VESDA VLF-500-UL 7Ed Product Guide VESDA
20 www.xtralis.com
3.1 Single Pipe Network
The table below shows the appropriate hole sizes for pre-engineered designs for a single pipe set up.
Single Pipe Network – max. length 150 ft. (50 m)
Sampling
holes
IPS ¾ in. Pipe ID 21 mm Pipe
Open Hole
3/8 inch
Capillary* with
1/8 inch hole
Open Hole
Open Hole 5.2
mm Capillary*
with 5 mm hole
Hole Size (in.) Length (ft.) Hole Size (mm) Length (m)
5 0 – 12 4.0 – 5.0 0 – 1.8
6 0 – 12 3.5 – 4.5 0.3 – 1.8
7 0 – 12 3.5 – 4.0 0.5 – 2.0
8 0 – 12 3.5 – 4.0 0.8 – 2.2
9-24* Use ASPIRE to calculate hole sizes in this range*
Table 3-1: Single pipe hole numbers and sizes
*For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii.
The set up below shows a single pipe arrangement with 4 sampling holes and a fitted end cap without a
sampling hole.
Legend
A Smoke Detector B Sampling Hole C End cap (no hole)
Figure 3-1: Open hole, single pipe
The set up below shows a single pipe arrangement with 6 capillary drop pipes and a fitted end cap without a
sampling hole.
Legend
A Smoke Detector B Capillary Tube C End cap (no hole)
Figure 3-2: Capillary tubes, single pipe

Xtrails VESDA VLF-500-UL Specifications

General

Brand	Xtrails
Model	VESDA VLF-500-UL
Category	Security System
Language	English