MECHANICAL INSTALLATION — EXHAUST SYSTEM

Exhaust System Installation Reference Data

The following Tables are provided for reference when installing the exhaust system.

Table 17. Factory Recommended Engine Exhaust Silencers

 

 

 

 

 

 

MQ Power

Silencer

Silencer

Inlet/Outlet

Maximum

Total Weight of

Allowable

Generator Model

Manufacturer

Model

Diameter

Sliencer

Back-Pressure

Number

Name

Number

In. (mm)

lbs. (Kg.)

Inches-WC

 

 

 

 

 

MQP20IZ

SILEX

JB-2.5

2.5 (63.5)

41

27 (12.15)

 

 

 

 

 

 

MQP30GM

NETT

EE48968

3 (76.2)

50

50 (22.67)

 

 

 

 

 

 

MQP30DZ

SILEX

JB-2.5

2.5 (63.5)

41

27 (12.15)

MQP40IZ

SILEX

JB-2.5

2.5 (63.5)

41

27 (12.15)

 

 

 

 

 

 

MQP45GM

NETT

EE49242

3 (76.2)

50

75 (34.05)

 

 

 

 

 

 

MQP50IZ

SILEX

JB-2.5

2.5 (63.5)

41

27 (12.15)

MQP60GM

NETT

EE48969

3 (76.2)

50

85 (38.5)

 

 

 

 

 

 

MQP60IV

SILEX

JB-2.5

2.5 (63.5)

41

27 (12.15)

 

 

 

 

 

 

MQP80GM

NETT

EE48970

3 (76.2)

50

100 (45.4)

MQP80IV

COWL

TS30TR

3 (76.2)

20

34 (15.42)

 

 

 

 

 

 

MQP100GM

NETT

EE49243

3 (76.2)

50

100 (45.4)

 

 

 

 

 

 

MQP100IV

COWL

TS30TR

3 (76.2)

28

34 (15.42)

MQP125IV

COWL

TS40TR

4 (101.6)

28

50 (22.67)

 

 

 

 

 

 

MQP150IV

COWL

TS40TR

4 (101.6)

28

50 (22.67)

 

 

 

 

 

 

MQP175IV

COWL

TS45TR

4.5 (114.3)

40

60 (27.21)

MQP200IV

COWL

TS45TR

4.5 (114.3)

40

60 (27.21)

MQP250IV

 

 

TBD

 

 

 

 

 

 

 

 

MQP300IV

COWL

TS60TR

6 (152.4)

40

94 (42.63)

MQP350IV

COWL

TS60TR

6 (152.4)

40

94 (42.63)

 

 

 

 

 

 

MQP400IV

 

 

TBD

 

 

 

 

 

 

 

 

MQP450VO

COWL

TS80TR

8 (203.2)

28

162 (73.5)

MQP500VO

COWL

TS80TR

8 (203.2)

28

162 (73.5)

 

 

 

 

 

 

MQP550VO

COWL

TS80PR

8 (203.2)

40

154 (70.0)

 

 

 

 

 

 

MQP600VO

COWL

TS80PR

8 (203.2)

40

154 (70.0)

 

 

 

 

 

 

Table 18. Cross-Sectional Areas of Openings of Various Diameter

Diameter of

Area of Muffler

Diameter of

Area of Muffler

Muffler Inlet (In.)

Inlet (FT2)

Muffler Inlet (In.)

Inlet (FT2)

2

0.0218

5

0.1363

2.5

0.0341

6

0.1963

3

0.0491

8

0.3491

3.5

0.0668

10

0.5454

4

0.0873

12

0.7854

 

 

 

 

Table 19. Equivalent Lengths of Pipe Fittings (Feet)

Type of Fitting

 

 

Nominal Diameter (Inches)

 

 

 

 

 

 

 

 

 

 

 

 

2

2.5

3

3.5

4

5

6

8

10

12

 

Standard Elbow

5.3

6.4

8.1

9.6

11

14

16

21

26

32

Medium Elbow

4.6

5.4

6.8

8

9

12

14

18

22

26

Long Radius Elbow

3.5

4.2

5.2

6

7

9

11

14

17

20

45° Elbow

1.5

2

2.3

2.6

3

4

4.5

6

8

9

Standard Tee

13

14

17

19

22

27

34

44

56

67

18 Inch Flexible Tube

3

3

3

3

3

3

3

3

3

3

24 Inch Flexible Tube

4

4

4

4

4

4

4

4

4

4

Table 20. Heat Losses from Uninsulated Exhaust

Pipes and Mufflers

Pipe Diameter

Heat From Pipe

Heat From Muffler

BTU/MIN-FOOT

Inches (mm)

BTU/MIN (kj/Min)

(kj/Min-Metre)

 

 

 

 

 

 

 

1.5 (38)

47 (162)

297

(313)

2 (51)

57 (197)

490

(525)

2.5 (64)

70 (242)

785

(828)

3 (76)

84 (291)

1,100 (1,160)

3.5 (98)

96 (332)

1,408 (1,485)

 

 

 

4 (102)

108 (374)

1,767 (1,864)

 

 

 

 

5 (127)

132 (457)

2,500

(2,638)

6 (152)

156 (540)

3,550

(3,745)

 

 

 

 

8 (203)

200 (692)

5,467

(5,768)

 

 

 

 

10 (254)

249 (862)

8,500

(8,968)

12 (305)

293 (1,014)

10,083 (10,638)

 

 

 

 

INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 49

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Multiquip MQP40IZ, MQP20IZ Exhaust System Installation Reference Data, Factory Recommended Engine Exhaust Silencers