BlazeMaster® CPVC Fire Sprinkler Systems

Transcription

BlazeMaster® CPVC
Fire Sprinkler Systems
Seminar Agenda
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Approvals and Standards
Pressure Rating of CPVC Fire Sprinkler Piping
Testing for CPVC Fire Sprinkler Piping
System Differences to Steel
Example Retro Fitted Care Home
Handling, Storage & Installation
Case Studies
Q&A
© The Lubrizol Corporation 2006, all rights reserved
Manufacturers make
pipe and fittings
CPVC resin and
powder and pellets
compound
Required product listings and approvals
for CPVC Fire Sprinkler Systems
• NSF potable water certification in USA
• UL Listed
• UL-C and C-UL Listed
• Factory Mutual FM Approved
• WRAS potable water certification in UK
• LPCB UK approved and Red Book listed
• VdS Germany Approved
Industry Standards, Guidelines
and Technical Bulletins for the use of CPVC Fire
Sprinkler Systems
•! BS EN 12845:
Fixed fire fighting systems – Automatic sprinkler systems –
design, installation and maintenance
•! TB 211:
CPVC Plastic Pipe
•! TB 227:
Pipework
•! Sprinklers in Schools:
DCSF Guide nr 8, Standard specifications, layouts
and
dimensions
•! NFPA 13:
Standard for the Installation of Sprinkler Systems
•! NFPA 13 R:
… -”-… in Residential Occupancies up to and Including Four
Stories in Height
•! NFPA 13 D:
… -”-… in One- and Two-Family Dwellings and
Manufactured Homes
•! NFPA 24:
Standard for the Installation of Private Fire Service Mains
and Their Appurtenances
•! NFPA 90 A:
Standard for the Installation of Air-Conditioning and
Ventilating Systems
•! BS 9521:
Sprinkler systems for residential and domestic occupancies –
Code of practice
•! BAFSA Technical
The Design and Installation of Residential and Domestic
Guidance Note nr. 1: Sprinkler Systems
Pipe & Fittings Standards
•! Pipe produced in SDR 13.5 dimensions
•! Pipe manufactured per ASTM F442
•! Fittings are Schedule 40 or 80 for !” to 1 "” and
Schedule 80 for 1 #” to 3”
•! Fittings manufactured per
ASTM F437, F438, F439 or F1970
SDR – Standard Dimension Ratio
Pressure Rating
CPVC fire sprinkler pipe (20 –80mm) and fittings made
according to the before mentioned specifications are rated for
continuous service of 12 bars at 65°C.
The maximum working pressure is 12 bars.
UL Fire Test
•! Fire reaches
temperatures between
760°C and 870°C
•! After approximately 1
minute, sprinkler head
activates
•! Pipe is in direct contact
with fire plume at 370°C 483°C for a total of 10
minutes
•! System then tested at 12
bar for 10 minutes
LPCB Fire Test
•! Fire temperature at which joint is in direct contact with
the fire plume: 300°C to 520°C
•! Duration of fire: 10 min.
•! Sprinkler head activation: after 30 to 40 seconds.
•! System then pressure tested at 12 bar for 10 minutes
Fire Threat Concern
•! Inside Pipe Properties remain
unchanged
•! CPVC requires more oxygen to
burn than is in the earth’s
atmosphere
–! CPVC will not burn by
itself. It chars instead of
burning when exposed to
an external flame
•! Charring becomes a thermal
barrier
–! restricts the flow of heat
into pipe wall
–! reduces the rate of burning
European Fire Classification
in accordance with EN 13501-1:2002
Classification achieved by all Lubrizol CPVC
pipe and fitting compounds:
Bs1d0
!! This is the best possible rating a non-metal material can
achieve
Fire behavior
B
flashover
low flammability, no
contribution to
Smoke production
s1
no smoke development
Flaming droplets
d0
no burning drops
Occupancy Classifications
LPCB and VdS applications
-! Light Hazard : Offices, Educational Buildings (certain areas)
-! Ordinary Hazard 1 : Hospitals, Hotels, Restaurants
-! Ordinary Hazard 2 : Museums
-! Ordinary Hazard 3 : Retail areas (of shopping malls, railway stations)
VdS applications
- Ordinary Hazard 4 : theatres, cinemas, concert and exhibition halls
sources for LPCB:
sources for VdS:
EN 12 845:2004
Technical Bulletin 211 CPVC plastic pipe
VdS CEA 4001 Guideline: Planning and Installation of Sprinkler Systems
CEA = Comité Europeén des Assurances
Occupancy
Classifications
NFPA 13 – Light Hazard
•! Places of Worship
•! Clubs
•! Educational (Schools/Student
Housing)
•! High Rises (Hotels/Condos over 4
stories)
•! Hospitals
•! Institutional
•! Libraries
•! Museums
•! Nursing Homes
•! Offices
•! Theaters / Auditoriums
Per NFPA 13 2002 Edition, Section A.5.2
CPVC Fire Sprinkler Systems Product
Advantages / Differences to Steel
•! Proven Performance since 1984
•! Corrosion resistance
•! Increased Hydraulic Capabilities allows for pipe
downsizing {Hazen Williams C-Factor = 150}
•! Clean (installation and water quality)
•! Job site flexibility
•! Faster Scheduling ! No pre-fabrication
•! Design Savings (prepared fitting drawings)
•! Chemical Compatibility
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Working temperature: up to 65°C
Working pressure: 12 bar
Average Burst pressure: 100 bar
Flash ignition temperature: 480°C
LOI: 60
Wet sprinkler installations
Shorter hanger distance than steel
Thermal expansion and contraction
Light Weight: 1 m CPVC pipe DN 25 = 0,390 kg
1 m steel pipe DN 25 = 2,440 kg
•! Recycling possible
Function of roughness of pipe, as measured by Hazen
-Williams ’C' factor used in Hazen-Williams formula for
calculating friction head losses in piping systems.
Material
C Factors
(new installation)
C Factors
(after 4-40 years service)
CPVC
Copper/Steel
150
130 - 140
150
60 - 120
Higher C value for CPVC
- less friction, increase of flow
- less pressure loss
- possibility to downsize the pipe
- increase of service life time
Hydraulic Design for CPVC Piping
For space and cost savings through downsizing of the pipework,
installations using CPVC pipe shall be fully hydraulically calculated.
Software to this regard is widely available.
Pipe Friction Loss
Calculations of pipe friction loss shall be not less than those derived from the
Hazen-Williams formula as described in EN 12845, 13.2.1.:
$ p = pressure drop in bar
Q = flow in l/min
C = the Hazen-Williams C value of 150 for CPVC
d = inside pipe diameter in mm
L = length of pipe for which the friction loss has to be calculated, being the
sum of the length of pipe and the equivalent pipe allowance for fittings in m.
Pipe Dimensions & Weights
CPVC pipe is produced in SDR 13.5 dimensions. SDR, or standard
dimension ratio, means the pipe wall thickness is directly proportional to the
outside diameter ! all diameters carry the same pressure capability
CPVC Pipe Dimensions & Weights
SDR 13.5 (ASTM F 442)
Nominal
Size
Average
OD
Average
ID
mm
mm
mm
DN 20
26.8
22.2
0.250
0.637
DN 25
33.4
28.0
0.390
1.005
DN 32
42.2
35.4
0.622
1.606
DN 40
48.2
40.6
0.816
2.109
DN 50
60.3
50.9
1.278
3.310
DN 65
73.0
61.5
1.871
4.844
DN 80
88.9
75.0
2.778
7.186
Kilograms
Per Meter
Kilograms
Per Meter
Empty
H2O Filled
From (left to right)
Steel, Copper,
CPVC
Photos of water samples at the end of
the 14 week experiment
Conclusions:
Water from:
1/3 flush per day (14 wks)
Water from:
Steel pipes
Copper pipes
CPVC pipes
Daily flush (14 wks)
! high turbidity, particulate solids
! contained yellow/orange turbidity
! remained clear
! “ The CPVC pipe did not show any
deterioration - and in fact had a lower
turbitidy than the initial water ”.
Two week flush (14 wks)
Health: Bacterial Growth
Number of Legionella bacteria in the test water
(average after 8, 12 and 16 weeks - static test, no flow)
“In the presence of
the two CPVC
materials, the growth
of Legionella bacteria
in the water was
low "
* Study : " Biofilm Formation Potential of
Pipe materials in Internal Installations ” by
order of VROM. Authors: H.R. Veenendaal
and D. van de Kooiy - KIWA N.V. - Division
Chemistry and Biologie. June 1999.
Expansion & Contraction
** 10°C change in temperature will cause an expansion of
0,12 cm for a 2 m straight length **
Expansion can be accommodated with:
–! Expansion loop
–! Pipe offset
–! Change in direction
Example: Retro fit in a 40 bed care home
Installation
Time
CPVC
Sprinkler
Pipe
Steel
(Screwed)
640 hrs
1.323 hrs
More than 50 %
installation time than with
CPVC
Example: Retro fit in a 40 bed care home
!! Considerable reduction of total weight of pipe
! Faster + easier transport on site
! Less weight to be carried by the construction
CPVC
Empty
Pipe
Diameter
Steel
Empty
Length in m
unit weight
total weight
unit weight
total weight
243,0
0,390
94,81
2,457
597,28
1 1/4"
16,5
0,622
10,24
3,165
52,09
1 1/2"
8,0
0,816
6,68
3,663
29,97
282,0
1,278
361,00
5,155
1.456,06
1"
2"
Total
weight
in kg
473 kg
2.135 kg
specific to Retro-Fits
-! Building remains operational during installation
(= Owner Occupancy Advantage)
-! Space savings
-! installation directly to ceiling or wall
-! downsizing
-! Safety on job site
- “cold” installation
- reduction of injuries through use of manual tools
-! Quiet installation
-! Easy and Fast repair work in existing installations
Handling, Storage and Installation
•! Keep pipe & fittings in cartons
to protect them from damage &
to maintain cleanliness
•! Inspect pipe for splits, cuts, &
gouges
•! Cover outside stored pipe with
an opaque tarp to protect from
UV light
•! Handle pipe and fittings with
care
•! Never throw fittings to the
ground
•! Never drop or drag pipe
•! Avoid contamination of pipe
and fittings with petroleum
based products such as cutting
or packing oils
Cutting
•! Cut pipe squarely
•! A square cut provides
best bonding surface
•! Use:
- wheel-type plastic
tubing cutter
- power saw
- fine toothed saw
Deburring / Bevelling / Chamfering
•! Debur, bevel, chamfer both
inner and outer end of pipe by
using a
-! chamfering tool
-! other tool (file)
This is necessary to make sure that
pipe end bottoms in the fitting
Solvent Cementing
Summary
Apply cement to the pipe end, in the fitting socket, and on the pipe end again
Insert pipe end into socket and rotate pipe a ! turn. Hold for 30 seconds.
Kyrresborg – The King‘s Fortress
New Apartment Building
Bergen, Norway
560 sprinkler heads
82 apartments
Extinguished Fire in 1920’ Apartment Building
Damage limited to:
1. Burned Sofa
Retro fit in March 2006
2. Smoke damage
Fire broke out in May 2006
175 sprinkler heads
35 apartments, 6 floors
3. Water damage
Hotel Park Pension, Bergen, Norway
Retro fit in heritage hotel, dating back to 1890’s
90 sprinkler heads, 33 rooms, 4 floors
Wooden Residence Mix Apartments / Offices
Retro fit in April 2006
Space savings:
!!CPVC can be directly attached to
both walls or ceilings
!!Steel must be hung below the
ceiling in order to turn the pipe with
a wrench
!!Steel cannot be attached to walls
Hilton Hotel Strasbourg, France
Retro fit in 2006
~ 1.550 sprinkler
heads
245 rooms, 11 floors

BlazeMaster® CPVC Fire Sprinkler Systems

Transcription

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