JCM 121 Gas Repair Clamps Meets the Department of Transportation Code 192
Clamp Width - Inches # Approximate Weight - Lbs
Single Band Clamps
Clamp OD Range (IN)
Nom Pipe Size (IN)
Clamp Number
6
7
12
15
18
24
30
$ 162.90
$ 283.16
1-1/2
1.88 - 2.15
121-0190
8#
15#
2.35 - 2.63 2.70 - 3.13 3.46 - 3.70 3.73 - 4.13 4.45 - 4.75 4.74 - 5.14 4.95 - 5.35 5.95 - 6.35 6.56 - 6.96 6.85 - 7.25 7.95 - 8.35 8.54 - 8.94 8.99 - 9.39
121-0238 121-0275 121-0350 121-0400 121-0450 121-0480 121-0500 121-0600 121-0663 121-0690 121-0800 121-0863 121-0905
$ 162.90 $ 171.50 $ 283.16 $ 340.71
2 - 2-1/2
8#
9#
15#
19#
205.43
215.98
327.07
408.00
3
8#
10#
16#
20#
212.66
223.89
353.89
428.29 $ 517.14 $
693.34 $ 904.96
4
9#
11#
18#
22#
26#
36#
44#
251.98
265.73
425.08
487.67
634.99
866.10 1,039.55
6
10#
12#
19#
24#
29#
38#
48#
311.82
500.06
571.70
728.42
930.41 1,161.98
8
13#
21#
27#
32#
42#
53#
9.90 - 10.30 121-1000 10.60 - 11.00 121-1075 11.04 - 11.44 121-1110 12.00 - 12.40 121-1200 12.60 - 13.02 121-1275 13.10 - 13.50 121-1320 14.00 - 14.40 121-1400
408.00
642.44
737.36 1,025.56
1,330.16 1,582.36
10*
18#
34#
36#
50#
68#
72#
463.94
737.01
839.96 1,156.94
1,529.63 1,804.30
12*
20#
37#
40#
52#
74#
80#
Number of Bolts
2
2
4
4
6
8
10
How to Order:
1. Determine O.D. of Pipe
Available Options: Special size/range not listed, Conductive Buttons, Specialty Gaskets For threaded outlet clamps, see JCM Tapped Clamps *Clamp widths 7" & 15" use 5/8" bolts Applications in which the pipe may move out of the clamp, proper anchorage must be provided. 2. Select proper clamp O.D. range and width. 3. Specify clamp number. Example: For Cast Iron Pipe, 6.90 O.D., 6" wide, order: 121-0690-6 Clamps do not prevent lateral movement of pipe.
Pressure Rating of 121 & 123 Gas Clamps:
Cast Iron Pipe:
2” through 8” 100 PSI Gas 10” through 12” 60 PSI Gas
Steel Pipe:
10” through 12” 60 PSI Gas 2” through 8” 100 PSI Gas
Do Not use for the repair of Polyethylene Gas Pipe. Suitable for reshaping and marking squeeze off locations.
Material Specifications
18-8 Type 304 Certifiable Prime Stainless Steel
Band: Lugs: Bolts:
Ductile Iron ASTM A-536, 60-40-18
Corrosion resistant low alloy per ASTM A242, ANSI A21.11, AWWA C-111. National coarse rolled thread and heavy hex nut.
Buna N Gasket for natural gas service Corrosion resistant shop coat paint primer.
Gasket: Coating:
10
Price List Effective February 3, 2025. Cancels all previous prices. Prices are subject to change without notice. 800.527.8482 sales@jcmindustries.com jcmindustries.com
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