Typical Attenuation Curve dB(A)*
(ACTUAL ATTENUATION MAY VARY ACCORDING TO APPLICATION)
Octave Band Center Frequency (Hz)
Performance:
All Nelson Spark Arresters/Silencers can be installed either horizontally or vertically.  Efficiency in either position is expected to exceed 95% of rated flow.

Material:
Aluminized Steel/Mild Steel: Nelson Spark Arresting Silencers are manufactured of aluminized steel and/or mild steel depending on design.  (See standard silencer specification sheet for material details.)

Stainless Steel:  Nelson Spark Arresting Silencers are available in stainless steel by special request.  Excellent resistance to corrosion.  The maximum operating temperature is 1500 F.

Finishes:
Silicone Aluminum Paint/Primer:   Nelson Spark Arresting Silencers are given a coat of high heat resistant silicone aluminum paint and/or a coat of high heat rust inhibiting primer.  (See standard silencer specification sheet for finish details.)

Sample Specification:
The silencer is to be a Nelson Spark Arrester Silencer constructed of aluminized steel/mild steel with all welded construction and suitable for mounting in any position.  The spark arresting silencer shall be complete wiht the following Nelson accessories:

Click here for Sample Specification

Pressure Drop
Pressure Drop Information
Pressure Drop Graph

Additional Accessories:
Companion Flanges..... are available in both cast iron threaded and mild steel weld-on versions.  They come in kits which include all of the nuts, bolts and gaskets for proper installation.

*Estimated