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Set and Cure Times
Solvent cement set and cure times are a function of pipe size, temperature and relative humidity. Curing time is shorter for drier environments, smaller sizes and higher temperatures. Refer to the following table for minimum cure times after the last joint has been made up before pressure testing can begin.

MINIMUM CURE PRIOR TO PRESSURE TESTING AT 10 BAR
Ambient temperature
During Cure Period
Pipe Sizes
Up to 25 mm
40 mm and above
Above 15° C
1 Hour
2 Hours
4 - 15° C
2 Hours
4 Hours
Below 4° C
4 Hours
8 Hours

Special care should be exercised when assembling CPVC systems in extremely low temperatures (below 4° C) or extremely high temperatures (above 38° C) Frozen cement can not be recovered and should be discarded. In extremely hot temperatures, make sure both surfaces to be joined are still wet with cement when putting them together.

One - Step Cements
In certain areas, quick drying cements are available. Theses cements avoid the need for a primer ad hence steps 4 & 5 of the installation procedure may be eliminated. With one-step cements, drying times are considerably shortened as shown in table below (for all temperatures above 0° C)

16 - 32 mm
40 - 63 mm
15 minutes
30 minutes


DIMENSIONS ( DIN 8079 )
Outside
Diameter
( mm )
PN 16 ( S=6.25 )
Wall thickness Weight
( mm )
kg / m
PN 20 ( S=5 )
Wall thickness Weight
( mm )
kg / m
PN 25 ( S=4 )
Wall thickness Weight
( mm )
kg / m
16
1.2
0.100
1.5
0.118
1.8
0.136
20
1.5
0.151
1.9
0.183
2.3
0.217
25
1.9
0.234
2.3
0.379
2.8
0.326
32
2.4
0.379
3.0
0.455
3.6
0.534
40
3.0
0.582
3.7
0.701
4.5
0.830
50
3.7
0.896
4.6
1.090
5.6
1.290
63
4.7
1.430
5.8
1.720
7.0
2.020
75
5.6
2.020
6.9
2.420
8.4
2.880
90
6.7
2.880
8.2
3.460
10.0
4.100
110
8.2
4.310
10.0
5.130
12.3
6.160

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CPVC Pipes & Fittings
Factory: El Obour Industrial Zone No. 5 Block 13023.
Tel.: + 202 4610064 1 / 2 / 3.
Fax: + 202 46100644, 202 46102757.
Web site: www.toutounji.com
E-mail: sales@toutounji.com .
PPR. Type 3 Aqua Prima
Factory: Block 17 - Km 17 - Industrial Zone
Guesr El Suez St. Ismailia Desert Road.
Tel.: + 202 26237448 , 26237463.
Fax: +202 26237475.
Web site: www.toutounji.com
E-mail: sales@toutounji.com .