Circle
 
 
 
HIGH PRESSURE TEST PLUGS
 

The M Series High Pressure Test Plugs are designed for pressure testing at high pressure up to 3,000 p.s.i. After inserting the plug inside the pipe and when the nut on the stem is tightened the steel grips on the outer diameter of the plug grip against the inside diameter of the pipe and a neoprene seal cup is compressed to seal off the pipe. Hardened plated construction of all metal parts used in conjunction with the high quality neoprene "O" rings and seals assures a reliable and contamination free operation. All M Series test plugs are factory tested up to 3,000 p.s.i. depending on the size. Special sizes as large as 60" can be made to fit specific inside diameters.
 


CODE NO.
FITS INSIDE
PIPE DIA.
(IN INCHES)
UNEXPANDED
OUTER DIAMETER
(IN INCHES)

NOMINAL
PIPE SIZE

SCHEDULE
NUMBER
WALL
THICKNESS
(IN INCHES)

INSERTION
LENGTH

WEIGHT
(IN LBS.)
M40-1
1.049"
1.315"
1"
40
.133"
1 3/4"
1
M80-1
.957"
1.315"
1"
80
.179"
1 3/4"
1
M40-1 1/4
1.380"
1.660"
1 1/4"
40
.140"
2"
1 1/4
M80-1 1/4
1.278"
1.660"
1 1/4"
80
.191"
2"
1 1/4
M40-1 1/2
1.610"
1.900"
1 1/2"
40
.145"
2"
1 1/2
M80-1 1/2
1.500"
1.900"
1 1/2"
80
.200"
2"
1 1/2
M40-2
2.067"
2.375"
2"
40
.154"
2 1/4"
3
M80-2
1.939"
2.375
2"
80
.218"
2 1/4"
3
M40-2 1/2
2.469"
2.875"
2 1/2"
40
.203
2 1/2"
3 1/2
M80-2 1/2
2.323"
2.875"
2 1/2"
80
.276"
2 1/2"
3 1/2
M40-3
3.068"
3.500"
3"
40
.216"
3"
5
M80-3
2.900"
3.500"
3"
80
.300"
3"
5
M40-3 1/2
3.548"
4.000"
3 1/2"
40
.226"
3"
6 1/2
M80-3 1/2
3.364"
4.000"
3 1/2"
80
.318"
3"
6 1/2
M40-4
4.026"
4.500"
4"
40
.237"
3"
8
M80-4
3.826"
4.500"
4"
80
.337"
3"
8
M40-5
5.047"
5.563"
5"
40
.258"
3 1/4"
14
M80-5
4.813"
5.563"
5"
80
.375"
3 1/4"
14
M40-6
6.065"
6.625"
6"
40
.280"
3 1/2"
20
M80-6
5.761"
6.625"
6"
80
.432"
3 1/2"
20
M40-8
7.981"
8.625"
8"
40
.322"
3 3/4"
35
M80-8
7.625"
8.625"
8"
80
.500"
3 3/4"
35
M40-10
10.020"
10.750"
10"
40
.365"
4 1/2"
62
M80-10
9.750"
10.750"
10"
80
.500"
4 1/2"
62
 

© Circle 2009 | 995 Griffin Pond Road, Clarks Summit, PA 18411. Phone: (570) 585-2138, Fax: (570) 585-2141. Email – sales@circlemfg.com