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Pipe-Guard
PIPE-GUARD Rock Shield III
Protects the corrosion coating on pipelines
from rocky backfill.
Description
PIPE-GUARD Rock Shield III is a flexible
padding designed especially for the protection of the corrosion coating
on pipelines when rocky backfill is encountered.
Advantages
- PIPE-GUARD Rock Shield III provides the
padding required for pipe coatings without the concern of blocking out
cathodic protection.
- PIPE-GUARD Rock Shield III has a flat
interior surface that will not mar soft coatings.
- PIPE-GUARD Rock Shield III saves money
at every step of the operation through its convenience and ease of
application.
- PIPE-GUARD Rock Shield III’s
flexibility, even at colder temperatures, allows for quick and easy
application lengthwise or cigarette wrap using tape or strapping
products.
- PIPE-GUARD Rock Shield III helps protect
the coating from the abrasive movement of the pipe in the ground over
long periods.
Availability
PIPE-GUARD Rock Shield III is readily
available. It is supplied in a standard roll size of 5’ wide x 100’ roll
long weighing 77 lbs.
Benefits
- Absorbs impact of uneven backfill
- Protects pipe coating from jagged rocks
in trench.
- Helps prevent abrasions from pipe
movement underground.
- Protects pipe from future excavations.
- Material is lightweight and easy to
handle.
Product Data
|
Parameter |
English |
Metric |
Test Method |
|
Thickness, minimum
Nominal |
0.145"
0.160" |
3.68 mm
4.0 mm |
ASTM
D4801 |
|
Weight, minimum
Nominal |
0.144
lbs/sq ft
0.155 lbs/sq ft |
800
kg/m2
750 kg/m2 |
|
|
Tensile
Strength, minimum |
2757
lbs/sq in |
19.0
N/mm2 |
ASTM
D1682
modified |
|
Toughness
(weak strand)
Breakload x elongation, min |
7 |
7 |
|
|
Compressive Strength, nominal |
200
lbs/sq in |
140,000
kg/m2 |
ASTM
D1621
modified |
|
Impact
Resistance, limestone drop |
Pass |
Pass |
ASTM
G13 |
|
Impact
Resistance |
Rockshield protected |
ASTM
G14(1) |
|
Type of
Coating - no holiday at: |
No
holiday at: |
No
holiday at: |
|
|
Fusion Bonded Epoxy |
22.9" |
58.2 cm |
|
|
Polyethylene Tape |
21.9" |
55.6 cm |
|
|
Coal Tar Enamel |
42.0"
(2) |
106 cm |
|
|
Specific
Gravity, minimum
Maximum |
35
lbs/cu ft
43 lbs/cu ft |
0.56
g/cm3
0.69 g/cm3 |
|
|
Strand
Angle, minimum
Maximum |
80º
90º |
80º
90º |
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|
Strand
Count, minimum
Maximum |
3.1/inch
3.7/inch |
1.22/cm
1.45/cm |
|
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Resin
Density, minimum |
58.6
lbs/cu ft |
0.94
g/cm3 |
ASTM
D1505 |
|
Resin
Melt Index, minimum |
0.22
lbs/
10 minutes |
1.00 g/
10 minutes |
ASTM
1238A |
(1) Using at 4 lb weight
(2) Maximum height of test apparatus
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