Milton CAT G175 User Manual

JB Series

25 - 32 dBA

Critical Grade

800 387 7818

Engine Silencers

Silencer Selection

Call Silex for immediate assistance in

selecting the appropriate silencer that best

suits your application’s acoustical and

backpressure requirements or consult the

silencer selection guide in our catalogue. You

can also use Silex’s exclusive Silencer Sizing

and Selection Program “Silex Digital

Engineer” found on the Company’s secure

website at www.silex.com.

Application & Performance

The Critical Grade series are reactive silencers.

All of the silencers are manufactured from light

to heavy gauge steel and finished with high

temperature paint. Flanges are ANSI 125/150#

and a drain is included as a standard component

on the silencer.

Dimensions

Model A B C D F** G H Wgt.

JB-1.5 1.5 9 (229) 24 (610) 30 (762) 4.0 (102) 7.5 (191) 27 (686) 21 (10)

JB-2 2 9 (229) 24 (610) 30 (762) 4.5 (114) 7.5 (191) 27 (686) 22 (10)

JB-2.5 2.5 10

(254) 28 (711) 34 (864) 5.0 (127) 8.0 (203) 31 (787) 31 (14)

JB-3 3 12

(305)

32 (813) 38 (660) 5.5 (140) 9.0 (229) 35 (889) 44 (20)

JB-3.5 3.5 14 (356) 36 (914) 42 (1067) 6.0 (152) 10.0 (254) 39 (991) 63 (29)

JB-4 4 14 (356) 40 (1016) 48 (1219) 6.0 (152) 11.0 (279) 44 (1118) 77 (35)

JB-5 5 16 (406) 49 (1245) 57 (1448) 7.0 (178) 12.0 (305) 53 (1346) 103 (47)

JB-6 6 18 (457) 55 (1397) 63 (1600) 8.0 (203) 13.0 (330) 59 (1499) 130 (59)

JB-8 8 22 (559) 68 (1727) 76 (1930) 9.5 (241) 15.0 (381) 72 (1829) 204 (93)

JB-10 10 26 (660) 81 (2057) 89 (2261) 11.5 (292) 17.0 (432) 85 (2159) 401 (182)

JB-12 12 30

(762) 94 (2388) 102 (2591) 13.0 (330) 19.0 (483) 98 (2489) 535 (243)

JB-14 14 36

(914) 99

(2515) 109 (2769) 15.5 (394) 23.0 (584) 104 (2642) 684 (310)

JB-16 16 40

(1016)

109 (2769) 119 (3023) 16.5 (419) 25.0 (635) 114 (2896) 1114 (505)

JB-18 18 45

(1143)

117 (2972) 127 (3226) 18.0 (457) 27.5 (699) 122 (3099) 1579 (716)

JB-20 20 50

(1270)

127 (3226) 137

(3480) 20.5 (521) 30.0 (762) 132 (3353) 2189 (993)

JB-22 22 54 (1372) 139 (3531) 149 (3785) 22.5 (572) 32.0 (813) 144 (3658) 2538 (1151)

JB-24 24 60 (1524) 152 (3861) 162 (4115) 24.0 (610) 35.0 (889) 157 (3988) 3116 (1413)

JB-26 26 64 (1626) 173 (4394) 183 (4648) 25.5 (648) 37.0 (940) 178 (4521) 3778 (1714)

JB-28 28 68

(1727) 190 (4826) 200 (5080) 26.5 (673) 39.0 (991) 195 (4953) 4342 (1970)

JB-30 30 72 (1829) 206 (5232) 216 (5486) 28.0 (711) 41.0 (1041) 211 (5359) 4946 (2244)

Lit-0011 05-11

**For F dimension other than that specified, please contact Silex.

Available in sizes up to 60” inlet

Options

—

Aluminized steel, 304, 316 or 316L stainless steel, Corten Steel

— Dual inlet or Custom inlet/outlet configurations

—

Thermal insulation blankets to suit all configurations

—

Mounting brackets, gussets and lifting lugs available at additional cost

Silencers - Cylindrical

ST

SI

SISO612

SO12

Typical Orientations

Typical Attenuation Curve

Metric dimensions rounded to nearest mm.

Dimensions and weights are nominal and may vary slightly in
production models.

The inlet and discharge on silencers up to 3½" are
Sch. 40 NPT pipe. On silencers 4" and larger the inlet
and discharge are flanged, manufactured from minimum
½" thick plate and drilled to ANSI 150 lb.

Silex Innovations Inc.
Phone [phone]
Fax [phone]

www.silex.com

60

50

40

30

20

10

Attenuation - dB

0

63 125 250 500 1K 2K 4K 8K

Octave Band Center Frequency - Hz

60

50

40

30

20

10

Attenuation - dB

0

63 125 250 500 1K 2K 4K 8K

Octave Band Center Frequency - Hz

60

50

40

30

20

10

Attenuation - dB

0

63 125 250 500 1K 2K 4K 8K

Octave Band Center Frequency - Hz

JB-6

JB-12

JB-18