Diesel / Gas Engine Silencers
Steam & Gas Vents
Our premium grade D33 model is made to help silence your noise problems on such applications as rotary positive displacement blowers.

Our premium grade D33 model is made to help silence your noise problems on such applications as rotary positive displacement blowers. Our D33T model still offers the same premium silencing as our D33 model but can be built with a nozzle configuration to better suit each application.

For standard silencing at blower speeds above transition speed.
A multi-chamber silencer containing a high frequency absorption device in addition to a special arrangement of volumes and air passageways to effectively reduce both pulsation and excessive high frequencies through the process of converting noise energy into heat.

For standard silencing at blower speeds above transition speed.

A multi-chamber silencer containing a high frequency absorption device in addition to a special arrangement of volumes and air passageways to effectively reduce both pulsation and excessive high frequencies through the process of converting noise energy into heat. These units may be installed horizontally or vertically. The D33T units are normally installed vertically. Design parameters permit nozzle orientation to suit installation requirements.

All welded steel sheet and plate construction for long service life. Acoustic absorption material temperature limits far exceed application temperatures. Exterior surfaces are prime coated. Flanges are drilled to match 125lb American Standard Flanges. Inspection openings, mounting brackets, relief valve nozzles or special paint are available at extra charge.

Series D33 Chamber-Absorbtion Silencers
All welded steel sheet and plate construction for long service life. Acoustic absorption material temperature limits far exceed application temperatures. Exterior surfaces are prime coated. Flanges are drilled to match 125lb American Standard Flanges.

Series

A

B

C

Wt.

D33-2

2*

8

33

25

D33-21/2

21/2*

10

33

53

D33-3

3*

10

51

75

D33-4

4

14

53

139

D33-5

5

16

65

200

D33-6

6

18

72

281

D33-8

8

22

98

715

D33-10

10

26

123

958

D33-12

12

30

136

1353

D33-14

14

36

168

1826

D33-16

16

42

182

2906

D33-18

18

28

189

4175

D33-20

20

48

201

4525

D33-22

22

54

214

5337

D33-24

24

54

232

6560

*NPT Connections

Series D33H Chamber-Absorbtion Silencers
Series D33H Chamber-Absorbtion Silencers

Series

A

B

C

E

H Min.

H Max.

Wt.

D33H-2

2*

8

30

33

33

33

25

D33H-21/2

21/2*

10

31

33

33

33

53

D33H-3

3*

10

49

33

33

33

75

D33H-4

4

14

50

33

33

33

139

D33H-5

5

16

62

33

33

33

200

D33H-6

6

18

69

33

33

33

281

D33H-8

8

22

95

33

33

33

715

D33H-10

10

26

120

33

33

33

958

D33H-12

12

30

133

33

33

33

1353

D33H-14

14

36

165

33

33

33

1826

D33H-16

16

42

179

33

33

33

2906

D33H-18

18

28

186

33

33

33

4175

D33H-20

20

48

198

33

33

33

4525

D33H-22

22

54

211

33

33

33

5337

D33H-24

24

54

229

33

33

33

6560

*NPT Connections

Series D33T Chamber-Absorbtion Silencers
Series D33T Chamber-Absorbtion Silencers

Series

A

B

C

T Min.

T Max.

Wt.

D33T-4

4

14

47

6

14

175

D33T-5

5

18

60

7

13

200

D33T-6

6

18

661/2

9

15

225

D33T-8

8

22

92

10

21

757

D33T-10

10

26

117

12

29

1015

D33T-12

12

30

130

13

34

1434

D33T-14

14

42

158

15

34

1935

D33T-16

16

48

177

17

40

3080

D33T-18

18

54

185

19

45

4425

D33T-20

20

54

197

20

46

4796

D33T-22

22

60

211

22

48

5667

D33T-24

24

66

225

24

50

6953


 

 

 

 

 




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Series D33 Chamber-Absorbtion Silencers

 

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