INSTALLATION INSTRUCTIONS
Style 995N Coupling for Plain-End HDPE Pipe
ALWAYS REFER TO THE I-900 FIELD INSTALLATION
HANDBOOK FOR ADDITIONAL INFORMATION.
• Read and understand all instructions before attempting to install any
Victaulic piping products.
• Depressurize and drain the piping system before attempting to
install, remove, or adjust any Victaulic piping products.
• Wear gloves while handling coupling housings. The teeth machined
into the housings are sharp and can cause injury.
• Wear safety glasses, hardhat, and foot protection.
Failure to follow these instructions could result in serious personal
injury, improper product installation, and/or property damage.
1. Square-cut the HDPE pipe ends ("S" dimension shown)
"S" Max.
within 1/8 inch/3 mm for 2 – 4-inch/60.3 – 114.3-mm sizes and
5/32 inch/4 mm for 5-inch/141.3-mm and larger sizes.
1a. Make sure the pipe ends are clean and free from damage and
scratches within 1 inch/25 mm from the ends. Remove cutting
particles.
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REV_E
WARNING
Lubricant Compatibility for Gaskets
Soap-Based Solutions, Glycerin, Silicone Oil, or
Corn Oil, Soybean Oil, Hydrocarbon-Based Oils, or
Due to variations in HDPE pipe, always consult with the pipe manufacturer for lubricant compatibility
requirements. DO NOT USE VICTAULIC LUBRICANT ON HDPE PIPE.
2. Refer to the "Gasket Reference Mark" column in the
table to the right. Using a measuring tape and a bright-
colored marking pencil or paint stick, mark the pipe ends at
the measurement listed in this table. This mark will be used
for reference in centering the gasket during installation.
Make at least four of these marks equally-spaced around
the circumference of the pipe ends.
3. Refer to the "Pipe Insertion Depth" column in the table
to the right. Using a measuring tape and a bright-colored
pencil or paint stick, make an additional mark on the pipe
ends at the measurement listed in this table. This mark
will be used for visual inspection to make sure the pipe is
inserted properly in the coupling. Make at least four of these
marks equally-spaced around the circumference of the pipe
ends.
Compatibility with
Grade "T"
Lubricant
Nitrile Gaskets
Good
Silicone Release Agent
Good
Petroleum-Based Greases
Gasket Reference Mark and
Gasket Reference Mark and
Insertion Depth Requirements for
Insertion Depth Requirements for
HDPE Pipe
Metric HDPE Pipe
Gasket
Pipe
Nominal
Reference
Insertion
Size
Mark
Depth
inches
inches/mm
inches/mm
13/16
1 13/16
2
21
46
13/16
2 ¼
3
21
58
7/8
2 7/8
4
22
73
15/16
2 15/16
5 - 6
24
75
1
3
8
25
76
1
3 ¼
10
25
83
1
3 1/2
12
25
89
1 ¼
4 5/16
14
32
110
1 1/2
4 1/2
16
38
115
Compatibility with
1 1/2
4 ¾
18
Grade "E"
38
121
EPDM Gaskets
1 1/2
5
20
38
127
Good
Not Recommended
• A compatible lubricant must be used to prevent the gasket from pinching/tearing during
installation. Always consult with the pipe manufacturer for lubricant compatibility.
Failure to follow these instructions could cause joint leakage, resulting in property damage.
IT-995N
Nominal
Gasket
Pipe
Size
Reference
Insertion
mm
Mark mm
Depth mm
63
20
46
90
20
58
110
22
73
125
22
73
140
24
75
160
24
75
180
24
75
200
25
76
225
25
76
250
25
83
280
25
83
315
25
89
355
32
109
400
38
114
450
38
121
500
38
127
CAUTION