Industrial Exhaust Silencers

Industrial "100" Level Exhaust Silencers

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Specifications


Typical Attenuation Curve dB(A)*

(ACTUAL ATTENUATION MAY VARY ACCORDING TO APPLICATION)

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*Estimated

"F" Mounting Flange:

Standard in sizes 4" to 22". Drilling matches 125/150# ASA standard.

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"P" Male Pipe Threads:

NPT ends offered in sizes 3/4" through 4"

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Companion flanges available for 4" to 22"


Application:

These silencers are recommended where minimum silencing is required and ambient noise levels are medium to high.

Construction:

Aluminized Steel: Nelson Gloval Product Silencers through 26" O.D. are fabricated of aluminized steel as standard materials. This material has a maximum operating temperature of 1250 F.

Mid Steel/Aluminized Steel: Nelson Silencers 30" O.D. and larger are fabricated of mild steel and aluminized steel. All silencers 30" O.D. through 36" O.D. have aluminized steel bodies with all other components fabricated from mild steel. Silencers 42" O.D. and larger are fabricated from mild steel.

Silicone Aluminum Paint: Nelson Silencers through 26" O.D. are given a coat of high heat resistant silicone aluminum paint.

Primer/Silicone Aluminium Paint: Nelson Silencers 30" O.D. and larger are given a coat of high heat, rust inhibiting primer and then a topcoat of high heat resistant silicone aluminum paint. Physical properties are maintained up to 900 Fahrenheit on aluminized steel and 1000 Fahrenheit on mild steel.

Pressure Drop:

Pressure Drop Information, Pressure Drop Graph

Sample Specification:

The silencer is to be a Nelson Industrial "100" Level Silencer constructed of aluminized steel (26" body diameter and smaller) or mild steel/aluminized steel (larger than 26" body diameter) with all welded construction and suitable for mounting in any position. The silencer shall be complete with the following Nelson accessories: Click here for Sample Specification.

Sizes Available


Type 1

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PNA

NID
B

Body
C

Body Lgth
D

Overal Lgth
E

Off
F

Off
G

Inlet
41120 2.0 7.6 22.9 26.5 0 0 1.8
41125 2.5 8.1 27.1 32.5 0 0 2.7
41130 3.0 8.5 31.2 36.6 0 0 2.7
41135 3.5 9.0 32.8 37.6 0 0 2.4
41140* 4.0 10.1 32.2 28.0 2.3 2.3 2.9
41150* 5.0 12.1 32.3 37.9 2.8 2.8 2.8
41160* 6.0 14.1 32.9 38.3 3.4 3.4 2.7
41180 8.0 18.1 48.8 57.9 0 0 4.8
41182 10.0 22.1 50.6 58.0 0 0 3.7
41184 12.0 22.1 65.6 73.0 0 0 3.7
41188 16.0 42.1 84.2 90.8 0 0 3.3
41199 18.0 42.1 96.2 102.8 0 0 3.3
41121 20.0 48.3 97.9 103.9 0 0 3.0
41122 22.0 54.3 99.6 107.2 0 0 3.8

PN = Part Number, NID = Nominal Inlet Diameter, Body = Body Diameter O.D., Body Length. = Body Length, Overall Length. = Overall Length, Off = Offset To C/L, Inlet = Inlet Length

Type 3

silencer-type-3-1.jpg
PNA

NID
B

Body
C

Body Lgth
D

Overal Lgth
E

Off
G

Inlet
H

Outlet
43120 2.0 7.6 22.9 24.8 3.5 2.0 1.8
43125 2.5 8.1 27.7 30.2 3.9 2.5 2.4
43130 3.0 8.5 31.2 33.9 4.0 3.0 2.7
43135 3.5 9.0 32.8 35.4 4.9 3.0 2.6
43140 4.0 9.0 32.8 38.6 6.3 3.0 2.9
43150 5.0 12.1 30.3 34.2 5.7 4.0 3.8
43160 6.0 14.1 30.5 34.5 6.8 4.0 3.9
43180 8.0 18.1 48.3 53.2 9.2 4.0 4.6
43182 10.0 22.1 50.6 54.3 12.3 4.0 3.7
43184 12.0 22.1 65.6 69.3 14.3 4.0 3.7
43186 14.0 36.1 70.6 73.8 14.4 4.0 3.2
43188 16.0 42.1 84.2 87.5 16.1 4.0 3.3
43199 18.0 42.1 96.2 99.6 19.0 4.0 3.3
43121 20.0 48.3 97.9 108.2 20.0 4.0 3.3
43122 22.0 54.3 99.5 103.5 21.8 4.0 3.8

PN = Part Number, NID = Nominal Inlet Diameter, Body = Body Diameter O.D., Body Lgth. = Body Length, Overall Lgth. = Overall Length, Off = Offset To C/L, Inlet = Inlet Length, Outlet = Outlet Length

Type 4

silencer-type-4-1.jpg
PNA

NID
B

Body
C

Body Lgth
D

Overal Lgth
E

Off
F

Off
G

Inlet
H

Outlet
44540 4.0 9.0 32.8 35.4 16.4 0 3.0 2.6
44550 5.0 12.1 30.3 34.2 15.2 0 4.0 3.8
44560 6.0 14.1 30.5 34.5 15.3 0 4.0 3.9
44580 8.0 18.1 48.3 53.2 24.2 0 4.0 4.8
44582 10.0 22.1 50.6 54.3 25.3 0 4.0 3.7
44584 12.0 26.1 49.7 53.4 24.9 6.5 4.0 3.6
44586 14.0 36.1 70.6 73.8 35.3 0 4.0 3.2

PN = Part Number, NID = Nominal Inlet Diameter, Body = Body Diameter O.D., Body Length. = Body Length, Overall Length. = Overall Length, Off = Offset To C/L, Inlet = Inlet Length, Outlet = Outlet Length