EPCO ZERO-LEAK GOLD^® PLUG TESTING TORQUE VALUES

REPORT TORQUE VALUES (ft-lbs)

MATERIAL

SAE & Zero-Leak Gold^® Plug Size

Ductile Iron

Aluminum

SAE Torque Value

Percentage of SAE stated Torque

-2

2

2

3 ± .4

58.8%

-3

3

3

5.6 ± .4

57.6%

-4

7

7

8.9 ± .8

72.0%

-5

9

9

12 ± 1.6

66.1%

-6

11

11

18.7 ± 2

58.8%

-8

28

28

35 ± 4

71.7%

-10

46

46

55 ± 4

77.9%

-12

51

51

75 ± 4

64.5%

EPCO Zero-Leak Gold^® Plugs Proof and Burst pressure Testing Table 2.

BLOCK
NUMBER

Proof Test

BURST Test

Pressure (psi)

Fitting sizes
on Manifold

TIME AT
PRESSURE

Burst
Pressure (psi)

Mode of
Failure

Aluminum

Ductile Iron

SAE

1

6000

2,3,4

120 sec

21,769

No failure

2

6000

5,6,8

120 sec

23,111

No failure  

3

6000

10,12

120 sec

23,339

Manifold thread failure (SAE #10 Port)

4

10,000

2,3,4

120 sec

21,699

No failure  

5

10,000

5,6,8

120 sec

26,453

No failure  

6

10,000

10,12

120 sec

22,567

No failure  

Zero-Leak Gold^®

Plug Size

Aluminum

Average removal

Torque

(ft-lbs)

Ductile Iron

Average removal

Torque

(ft-lbs)

initial torque

(ft-lbs)

removal torque

(ft-lbs)

initial torque

(ft-lbs)

removal torque

(ft-lbs)

2

2

2

2

2

2

3.75

6.5

5.25

5.2  

2

2

2

3

2.75

6.25

4.0  

3

3

3

3

3

3

4

6.25

6.25

5.5  

3

3

3

4.25

4.25

4.5

4.3  

4

4

4

7

7

7

28.5

31.5

27

29.0  

7

7

7

7.25

6.75

11.75

8.6  

5

5

5

9

9

9

27.5

28

31

28.8  

9

9

9

11

11.5

10.75

11.1  

6

6

6

11

11

11

34.25

34

31

33.1  

11

11

11

22.5

12

14

16.2  

8

8

8

28

28

28

80

75

75

76.7  

28

28

28

40

31.5

29

33.5  

10

10

10

45

45

45

115

125

120

120.0  

45

45

45

135

95

125

118.3  

12

12

12

51

51

51

155

160

185

166.7  

51

51

51

60

85

85

76.7