USE ONLY HAYWARD
GENUINE REPLACEMENT PARTS
Page 11 of 16
Commercial Filter Valve Adapter Kit
ISHCV375 Rev-A
JOINT CURE SCHEDULE:
The cure schedules are suggested as guides. They are based on laboratory test data, and should not be
taken to be the recommendations of all cement manufacturers. Individual manufacturer’s
recommendations for their particular cement should be followed.
Temperature Range
During Cure Period (B)
°F(°C)
Test Pressures for Pipe
Sizes 1/2 to 1-1/4 In
Test Pressures for Pipe
Sizes 1-1/2 to 3 In
Test Pressures for Pipe
Sizes 4 to 5 In
Test Pressures for Pipe
Sizes 6 to 8 In
Up to 180 PSI
(1240 kPa)
Below 370 PSI
(2552 kPa)
Up to 180 PSI
(1240 kPa)
Below 315 PSI
(2170 kPa)
Up to 180 PSI
(1240 kPa)
Below 315 PSI
(2170 kPa)
Up to 180 PSI
(1240 kPa)
Below 315 PSI
(2170 kPa)
60 to 100 (15 to 40)
1 h
6 h
2 h
12 h
6 h
18 h
8 h
24 h
40 to 60 (5 to 15)
2 h
12 h
4 h
24 h
12 h
36 h
16 h
48 h
20 to 40 (-7 to 5)
6 h
36 h
12 h
72 h
36 h (A)
4 days (A)
3 days (A)
9 days (A)
10 to 20 (-15 to -7)
8 h
48 h
16 h
96 h
72 h (A)
8 days (A)
4 days (A)
12 days (A)
Extreme care should be exercised on all joints made where pipe, fittings or cement is below 10ºF (-15C).
A: It is important to note that at temperatures colder than 20ºF on sizes that exceed 3 in., test results
indicate that many variables exist in the actual cure rate of the joint. The data expressed in these
categories represent only estimated averages. In some cases, cure will be achieved in less time, but
isolated test results indicate that even longer periods of cure may be required.
B: These cure schedules are based on laboratory test data obtained on Net Fit Joints (NET FIT=in a dry fit
the pipe bottoms snugly in the fitting socket without meeting interference).