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Pillow Plugs

Cherne's Pillow-Style Test-Ball® and Muni-Ball® plugs are great for blocking sewer flow and can also be used for sewer air testing. Made from heavy-duty elastic urethane, these plugs are lightweight, flexible, chemical and petroleum-resistant, and will fit through small-diameter openings. Pillow-style plugs can be tethered with the attached tether bars, and will work in all types of pipe, including ductile iron sizes.

Features:
• Equipped with a special 30' inflation hose,
read-back line and gauge
• A repair kit is available to fix small tears and punctures
• Muni-Ball® style plugs feature a bypass with threaded nipples on both ends
 
Cherne Pillow Plugs


Cherne Pillow Plugs

 

Part
Number

Nominal
Size

Bypass
Diameter

Range
of Use

Maximum
Back Pressure

Inflation Pressure

Product
Weight

Deflated
Length

Deflated
Diameter

Inflation
Thread

Pillow-Style Muni-Ball

266027

30"
(750 mm)

2 1/2" FNP

29.4"-31.25"
|
(747-794 mm)

11 psi
(0,76 bar)

25 ft.
(7.6 M)

18 psi
(1,24 bar)

55 lbs
(25 kg)

66"
(1700 mm)

12"
(305 mm)

1/2" (1)

266035

33"
(850 mm)

2 1/2" FNP

3.23"-34.25"
(819-870 mm)

8.7 psi
(0,61 bar)

20 ft.
(6.1 M)

13 psi
(0,9 bar)

57 lbs
(25.9 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

266043

36"
(900 mm)

2 1/2" FNP

   

35.3"-37.5"
(896-953 mm)

8.7 psi
(0,61 bar)

20 ft.
(6.1 M)

13 psi
(0,9 bar)

67 lbs
(30.4 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

   

266051

42"
(1100 mm)

2 1/2" FNP

41.2"-43"
(1045-111 mm)

7.8 psi
(0,55 bar)

18 ft.
(5.5 M)

12 psi
(0,83 bar)

68 lbs
)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

266078

48"
(1200 mm)

2 1/2" FNP

47.04"-50"
(1195-1270 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

12 psi
(0,83 bar)

70 lbs
(31.8 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

266086

54"
(1400 mm)

2 1/2" FNP

52.92"-56"
(1344-1422 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

10 psi
(0,7 bar)

105 lbs
(47 kg)

95"
(2413 mm)

15"
(381 mm)

1/2" (1)

266094

60"
(1600 mm)

2 1/2" FNP

58.8"-62"
(1494-1575 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

10 psi
(0,7 bar)

125 lbs
(56.7 kg)

126"
(3200 mm)

15"
(381 mm)

1/2" (1)

266108

66"
(1700 mm)

2 1/2" FNP

64.7"-68"
(1643-1727 mm)

3.5 psi
(0,24 bar)

8 ft.
(2.4 M)

8 psi
(0,55 bar)

130 lbs
(58.9 kg)

126"
(3200 mm)

15"
381 mm)

1/2" (1)


 

FNP – Female National Pipe Thread
Large single-size plugs are not suitable for leak location or vacuum testing.
Custom sizes of the Pillow-Style Test-Ball® and Muni-Ball® plug are also available.
Always block plugs when conducting air tests.

 
Pillow Plugs

Part
Number

Nominal
Size

Size Range
of Use

Maximum
Back Pressure

Inflation Pressure

Product
Weight

Deflated
Length

Deflated
Diameter

Inflation
Thread

Pillow-Style Test-Ball

277108

*15"
(375 mm)

14.7"-15.5"
(373-394 mm)

15 psi
(1 bar)

35 ft.
(11 M)

35 psi
(2,4 bar)

7 lbs
(3.2 kg)

43"
(110 mm)

12"
(305 mm)

1/4" (1)

277118

*18"
(450 mm)

17.8"-18.8"
(451-477 mm)

15 psi
(1 bar)

35 ft.
(11 M)

30 psi
(2,1 bar)

9 lbs
(4.1 kg)

43"
(110 mm)

12"
(305 mm)

1/4" (1)

277128

*20"
(500 mm)

19.6"-20.7"
(498-526 mm)

13 psi
(0,9 bar)

30 ft.
(9.1 M)

18 psi
(1,24 bar)

12 lbs

(5.5 kg)

43"
(110 mm)

12"
(305 mm)

1/4" (1)

277134

*21"
(525 mm)

20.6"-21.8"
(523-554 mm)

13 psi
(0,9 bar)

30 ft.
(9.1 M)

18 psi
(1,24 bar)

14 lbs
(6.4 kg)

43"
(110 mm)

12"
(305 mm)

1/4" (1)

277142

*24"
(600 mm)

235"-25.2"
(598-641 mm)

11 psi
(0,76 bar)

25 ft.
(7.6 M)

18 psi
(1,24 bar)

16 lbs

(7.3 kg)

66"
(1700 mm)

12"
(305 mm)

1/4" (1)

277150

*27"
(700 mm)

26.5"-28.2"
(672-717 mm)

11 psi
(0,76 bar)

25 ft.
(7.6 M)

18 psi
(1,24 bar)

18 lbs

(8.2 kg)

66"
(1700 mm)

12"
(305 mm)

1/2" (1)

277169

30"
(750 mm)

29.4"-31.25"
(747-794 mm)

11 psi
(0,76 bar)

25 ft.
(7.6 M)

18 psi
(1,24 bar)

20 lbs
(9.1 kg)

66"
(1700 mm)

12"
(305 mm)

1/2" (1)

277177

33"
(850 mm)

32.3"-34.25"
(819-870 mm)

8.7 psi
(0,61 bar)

20 ft.
(6.1 M)

13 psi
(0,9 bar)

22 lbs
(9.9 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

277185

36"
(900 mm)

35.3"-37.5"
(896-953 mm)

8.7 psi
(0,61 bar)

20 ft.
(6.1 M)

13 psi
(0,9 bar)

32 lbs
(14.5 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

277193

42"
(1100 mm)

41.2"-43.7"
(1045-1111 mm)

7.8 psi
(0,55 bar)

18 ft.
(5.5 M)

12 psi
(0,83 bar)

36 lbs
(16.4 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

277207

48"
(1200 mm)

47.04"-50"
(1195-1270 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

12 psi
(0,83 bar)

41 lbs
(18.6 kg)

95"
(2413 mm)

12"
(305 mm)

1/2" (1)

277215

54"
(1400 mm)

52.92"-56"
(1344-1422 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

10 psi
(0,7 bar)

48 lbs
(21.8 kg)

95"
(2413 mm)

16"
(381 mm)

1/2" (1)

277223

60"
(1500 mm)

58.8"-62"
(1494-1575 mm)

5.6 psi
(0,4 bar)

13 ft.
(4 M)

10 psi

(0,7 bar)

64 lbs

(29.1 kg)

126"

(3200 mm)

16"

(381 mm)

1/2" (1)

277231

66"
(1700 mm)

64.7"-68"
(1643-1727 mm)

3.5 psi
(0,24 bar)

8 ft.
(2.4 M)

8 psi
(0,55 bar)

70 lbs
(31.8 kg)

126"
(3200 mm)

16"
(381 mm)

1/2" (1)

Rubber Pillow Plug

301118

54" - 72"
(1400-1800 mm)

53.5"-72.25"
(1360-1842 mm)

4.5 psi
(0,3 bar)

10 ft.
(3.2 M)

7.5 psi
(0,5 bar)

350 lbs
(160 kg)

174"
(4420 mm)

21"
(533 mm)

1/2" (1)

*15" - 27" pillow-style plugs have standard snifter valve air connection.
Large single-size plugs are not suitable for leak location or vacuum testing.
Custom sizes of the Pillow-Style Test-Ball® and Muni-Ball® plug are also available.