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CHERNE - Air Loc® Leak Locator Pipe Plugs 
(Sizes 6-96")    
Aka- Testing Plug - Blocking Plug   

BACK          CHERNE MAIN PRODUCTS PAGE       TECHNICAL DATA                         

CHERNE Air Loc PIPE PLUGS
AIR LOC FRONT/BACK  PIPE PLUGS

Air-Loc® leak locator plugs are designed for both low-pressure sewer line acceptance tests as well as leak location testing. Air-Loc® plugs can also be used to block flow by simply plugging the fill and read-back ports.

Features:
• Eye bolts on both ends
• Easy-to-use quick-disconnect hose connections
• Rupture discs available
• Cross-biased cording on sizes
15"-30", 24"-42", and 40"-60"


“Front" Air-Loc® Leak Locator Plugs
also come equipped with:
• Color-coded inflation ports
• Removable air fittings
• Flexible internal hoses
• Field replaceable sleeves

 
      
Always block plugs when conducting air tests

Part
Number

Nominal
Size

Range of Use

Maximum
Back Pressure

Inflation Pressure

Product
Weight

Deflated
Length

Deflated
Diameter

Inflation
Thread

Chain /
Eye bolts

Front Plug

267068

6" - 10"
(150-250 mm)

5.5"-10.5"
(140-260 mm)

13 psi
(0,9 bar)

30 ft
(9 M)

30 psi(2,1 bar)

8 lbs
(3.5 kg)

23.5"
(593 mm)

5.25"
(133 mm)

1/4" (1)

7/16" (2)

267088

8" - 12"
(200-300 mm)

7"-12.5"
(178-312 mm)

13 psi
(0,9 bar)

30 ft.
(9 M)

30 psi(2,1 bar)

15 lbs(6.8 kg)

26.25"(667 mm)

6.75"
(171 mm)

1/4" (1)

7/16" (2)

267128

12" - 18"
(300-450 mm)

10.75"-18.5"(273-478 mm)

13 psi
(0,9 bar)

30 ft.(9 M)

25 psi(1,7 bar)

27 lbs(12.2 kg)

31.5"
(800 mm)

10.25"(260 MM)

1/4" (1)

7/16" (2)

*417308

15" - 30"
(375-750 mm)

14.5"-30.5"
(368-775 mm)

**11 psi(0,76 bar)

25 ft.(7.6 M)

25 psi(1,7 bar)

45 lbs(21 kg)

51"
(1289 mm)

14"
(356 mm)

1/4" & 1/2"

3/8" (2)

*317408

20" - 40"
(500-1000 mm)

19"-40"
(475-1000 mm)

8.7 psi(0,6 bar)

20 ft.(6.1 M)

22 psi(1,5 bar)

95 lbs(43 kg)

46.25"(1175 mm)

18.5"
(470 mm)

1/4" & 1/2"

1/2" (2)

*417428

24" - 42"
(600-1050 mm)

22.5"-42.5"
(570-1080 mm)

**9 psi(0,62 bar)

20 ft.(6.1 M)

25 psi(1,7 bar)

100 lbs(46 kg)

52"
(1320 mm)

22"
(560 mm)

1/4" & 1/2"

3/8" (2)

*317488

24" - 48"
(600-1200 mm)

20.5"-50"
(521-1270 mm)

10 psi
(0,7 bar)

23 ft.(7 M)

22 psi(2,5 bar)

125 lbs(57 kg)

74.5"(1892 mm)

20"
(508 mm)

1/4" & 1/2"

5/8" (3)

*317608

30" - 60"
(700-1500 mm)

26.5"-60"
(675-1537 mm)

10 psi
(0,7 bar)

23 ft.(7 M)

22 psi(2,5 bar)

210 lbs(95.4 kg)

102"(2591 mm)

26"(661 mm)

1/2" (2)

5/8" (3)

*417608

40" - 60"(1000-1500 mm)

38"-60"
(965-1537 mm)

**8.7 psi(0,6 bar)

20 ft.(6.1 M)

25 psi(1,7 bar)

235 lbs(106 kg)

73"
(1855 mm)

37.25"(946 mm)

1/4" & 1/2"

3/8" (2)

*317728

48" - 72"(1200-1800 mm)

44"-72"
(1118-1835 mm)

6 psi
(0,41 bar)

14 ft.(4.3 M)

12 psi(0,83 bar)

290 lbs(132 kg)

100"(2540 mm)

43"
(1092 mm)

1/2" (2)

5/8" (3)

*317968

54" - 96"(1400-2400 mm)

54"-96"
(1400-2450 mm)

6 psi
(0,41 bar)

14 ft.(4.3 M)

11 psi(0,75 bar)

500 lbs(228 kg)

128"(3200 mm)

50"
(1270 mm)

1/2" (2)

5/8" (3)

Back Plug

275078

6" - 10"
(150-250 mm)

5.5"-10.5"
(140-260 mm)

13 psi(0,9 bar)

30 ft.(9 M)

30 psi(2,1 bar)

5.84 lbs(2.5 kg)

23.5"
(593 mm)

5.25"
(133 mm)

1/4" (1)

3/8" (2)

275108

8" - 12"
(200-300 mm)

7"-12.5"
(178-312 mm)

13 psi(0,9 bar)

30 ft.(9 M)

30 psi(2,1 bar)

9.3 lbs(4.2 kg)

26.25"(667 mm)

6.75"
(171 mm)

1/4" (1)

3/8" (2)

275138

12" - 18"
(300-450 mm)

10.75"-18.5"(273-478 mm)

13 psi(0,9 bar)

30 ft.(9 M)

25 psi(1,7 bar)

23 lbs(10.3 kg)

31.5"
(800 mm)

10.25"(260 MM)

1/4" (1)

3/8" (2)

*With Rupture Disc
**Consult table for greater pressures at smaller diameters


 

Pressure Ratings for Air-Loc® Leak Locator Plug

Actual Pipe Inside Diameter

Part Number

Plug

Size

15"

18"

21"

24"

30"

36"

42"

48"

54"

60"

Air Pressure Ratings (PSI)

417308

15" - 30"

17
(1,2 Bar) 

13
(0,9 bar)

13
(0,9 bar)

11
(0,76 bar)

11
(0,76 bar)

 

 

 

 

 

417428

24" - 42"

 

 

 

15
(1,0 bar)

13
(0,9 bar)

11
(0,76 bar)

9
(0,62 bar)

 

 

 

417608

40" - 60"

 

 

 

 

 

 

15
(1,0 bar)

13
(0,9 bar)

11
(0,76 bar)

8.7
(0,6 bar)

Head Pressure Ratings (Feet of Head)

417308

15" - 30"

40
(12 M)

30
(9 M)

30
(9 M)

25
(7.6 M)

25
(7.6 M)

 

 

 

 

 

417428

24" - 42"

 

 

 

35
(11 M)

30
(9 M)

25
(7.6 M)

20
(6.1 M)

 

 

 

17608      

40" - 60"

 

 

 

 

 

 

35
(11 M)

30
(9 M)

25
(7.6 M)

20
(6.1 M)

 

 

 
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