Chamber Type Discharge Silencer (URB, URBY)
TEII - Wastewater Depot - Catalog Index - URB, URBY

URB Series Diagram
The URD Series Discharge Silencer is a heavy-duty, all welded unit constructed of carbon steel sheet and plate.  It provides pulse control and silencing adequate for most sub-critical BLV applications.  Sizes 4" and larger are equipped with flanged connections drilled to 125/150 lb. ANSI specifications.   Smaller sizes are standard with male threaded pipe nipples.  Exterior surfaces receive a shop coat of rust inhibitive primer and may be finish painted in the field if desired.  The URD Series is the basic end inlet/end outlet configuration.  A low side inlet version is designated the URDY Series; high side inlet, URDH Series; and low opposed connections, URDS Series.  The four types are fundamentally alike and the perfomance is identical.  (Sizes 6' and smaller are URB Series rather than URD.)   Mounting brackets and other options are available. 

URBY, URDY Series Drawing
URBY, URDY Series

URB, URD Series Drawing
URB, URD Series
(Low Side Inlet)


P
(Size)		 D L N H K URBY,URDY WGT.
MIN. MAX.
1
1 1/2
2		 4 1/2
6 1/2
8		 21
24
33		 2
2
3		 17
20
27		 -
-
7

-
-
FIXED AT 6

 10
15
20
2 1/2
3
3 1/2		 10
10
12		 34
46
52		 3
3
3		 28
40
46		 8
8
9		 FIXED AT 7
FIXED AT 7
FIXED AT 8		 30
40
55
4
5
6		 14
16
18		 53
65
72		 3
3
3
 47
59
66		 10
11
12		 6
6 1/2
8		 22
29
32		 70
120
160
8
10
12		 22
26
30		 97
122
135		 3 1/2
3 1/2
3 1/2		 90
115
128		 14 1/2
16 1/2
18 1/2		 9
11
12 1/2		 48
63 1/2
69		 370
550
800
14
16
18		 36
42
48		 161
181
188		 3 1/2
3 1/2
3 1/2		 154
174
181		 21 1/2
24 1/2
27 1/2		 14 1/2
16 1/2
18 1/2		 81
92 1/2
98		 1250
1600
2300
20
22
24		 48
54
54		 202
204
239		 4 1/2
4 1/2
4 1/2		 193
195
230		 28 1/2
31 1/2
31 1/2		 19 1/2
21 1/2
22 1/2		 103
103
126		 2500
2950
3450
26
28
30		 60
66
72		 259
279
304		 4 1/2
4 1/2
4 1/2		 250
270
295		 34 1/2
37 1/2
40 1/2		 25
27
29		 132
144
161		 4400
6150
7250


URB Series Curve

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