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144 Series Hand Tightening Low Pressure Nylon Plugs Sizes: 1/2" to 6"

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Used for a wide variety of industrial applications

These superior, versatile, expandable pipe plugs are used to accommodate a wide variety of industrial applications where an airtight seal is required.

Quality, Lightweight, Durable Nylon 20% lighter than metal.

Tough/shatter-proof and easily cleaned and maintained, corrosion resistant.

Plaster or cement do not adhere to the plug.

Friction-reducing acetyl copolymer thrust washer inserted between plate and wing nut provides for easy expansion.

Natural Rubber provides "superior" seal.

Larger sizes incorporate strengthening ribs to provide rigidity in use.

Silicon, nitrile, and viton seals available.

Mechanical Low Pressure Nylon Plugs

Click an Item Number below for the Web Store

Nominal Size Expanded Diameter Relaxed Diameter By-Pass Shpg Wt
lbs
Item
Number
Unit Price
Each
Size
in mm in mm in mm in mm
Mechanical Plugs Without By-Pass
0.50 13 0.600 15 0.490 12     1 144-0005 US $7.95
0.75 19 0.900 23 0.740 19     1 144-0007 US $8.15
1.00 25 1.200 30 0.975 25     1 144-0010 US $8.70
1.25 32 1.450 37 1.225 31     1 144-0012 US $11.85
1.50 38 1.750 44 1.480 38     1 144-0015 US $12.70
Mechanical Plugs With By-Pass
0.50 13 0.600 15 0.490 12 1/8" 3 1 144-0005-8 US $21.10
0.75 19 0.900 23 0.740 19 1/8" 3 1 144-0007-8 US $22.00
1.00 25 1.200 30 0.975 25 1/8" 3 1 144-0010-8 US $22.65
1.25 32 1.450 37 1.225 31 1/8" 3 1 144-0012-8 US $25.10
1.50 38 1.930 49 1.420 36 1/2" 13 1 144-0015-8 US $23.20
2.00 51 2.360 60 1.930 49 1/2" 13 1 144-0020-8 US $25.15
2.50 64 2.760 70 2.400 61 1/2" 13 1 144-0025-8 US $26.55
3.00 76 3.310 84 2.870 73 1/2" 13 1 144-0030-8 US $27.20
4.00 102 4.250 108 3.540 90 1/2" 13 1 144-0040-8 US $29.80
5.00 127 5.370 136 4.720 120 1/2" 13 1 144-0050-8 US $45.40
6.00 152 6.290 160 5.500 140 1/2" 13 1 144-0060-8 US $46.90
Accessories for Mechanical Plugs With By-Pass
18" Hose Rubber 1/2" npt fittings       1 930-35180 US $28.80
48" Hose Rubber 1/2" npt fittings       1 930-35480 US $44.00

Note:  We do not specify a pressure rating on the 144-Series Nylon Expansion Plugs.  As the plug is expanded out there is less seal contacting the wall and thus have lower back pressure capabilities.  Use for very low pressure test or temporary closure only.

Note: Expansion plugs are less effective at higher limits of expansion than in the mid range. Let us help you by supplying the proper sizes for your requirements.

Price subject to change without notice

Petersen Terms & Conditions Apply