
Low-pressure bypass pipe plugs from Petersen Products' 141-0 Series offer reliable sealing and isolation in low-pressure systems, and include a bypass feature which enables venting or filling during pressure control.
Plugs are ideal for applications requiring precise pressure regulation without disrupting the system, helping isolate sections of pipe while still controlling pressure levels.
Low Pressure Bypass Plug features include:
- Lightweight aluminum pipe plugs, up to 70% lighter than similar steel plugs.
- By Pass fill or vent threaded with removable cap.
- Durable cast aluminum body
- Plated steel wing nut or tee handle seal expansion
- Natural Rubber Seal is most effective at mid-range of expansion
- Other configurations available for most sizes, pressure, chemical, and temperature requirements
141-Series Mechanical Hand Tightening Test Plugs Operation & Maintenance Instructions
Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions
| Image | Pipe Size, Nominal | Dia. Max | Dia. Min | By-Pass | Shipping Wt. | Item Number | Price | Qty | Order or Compare |
|---|---|---|---|---|---|---|---|---|---|
|
36" (914.4mm) | 36.8" (934.72mm) | 34.5" (876.3mm) | 2.0 BSPP | 96 Lb (43.55 Kg) | 141-0360- |
$2,315.41
|
||
|
32" (812.8mm) | 32" (812.8mm) | 31.125" (790.57mm) | 2.0 BSPP | 61 Lb (27.67 Kg) | 141-0320- |
$2,065.08
|
||
|
30" (762mm) | 31" (787.4mm) | 29.25" (742.95mm) | 2.0 BSPP | 60 Lb (27.22 Kg) | 141-0300- |
$2,013.52
|
||
|
27" (685.8mm) | 27.7" (703.58mm) | 26.25" (666.75mm) | 2.0 BSPP | 44 Lb (19.96 Kg) | 141-0270- |
$1,545.85
|
||
|
24" (609.6mm) | 25.5" (647.7mm) | 23.55" (598.17mm) | 2.0 BSPP | 38 Lb (17.24 Kg) | 141-0240- |
$1,105.66
|
||
|
21" (533.4mm) | 22.1" (561.34mm) | 20.65" (524.51mm) | 2.0 BSPP | 32 Lb (14.52 Kg) | 141-0210- |
$850.67
|
||
|
20" (508mm) | 20.65" (524.51mm) | 19.15" (486.41mm) | 2.0 BSPP | 30 Lb (13.61 kg) | 141-0200- |
$862.96
|
||
|
18" (457.2mm) | 19.25" (488.95mm) | 17.45" (443.23mm) | 1.0 BSPP | 18 Lb (8.16 Kg) | 141-0180- |
$671.18
|
||
|
16" (406.4mm) | 17" (431.8mm) | 15.6" (396.24mm) | 1.0 BSPP | 14 Lb (6.35 Kg) | 141-0160- |
$590.44
|
||
|
15" (381mm) | 15.8" (401.32mm) | 14.35" (364.49mm) | 1.0 BSPP | 14 Lb (6.35 Kg) | 141-0150- |
$522.28
|
||
|
14" (355.6mm) | 15.1" (384.54mm) | 13.8" (350.52mm) | 1.0 BSPP | 11.5 Lb (5.22 Kg) | 141-0140- |
$470.24
|
||
|
12" (304.8mm) | 12.45" (316.23mm) | 11.35" (288.29mm) | 1.0 BSPP | 8 Lb (3.63 Kg) | 141-0120- |
$378.39
|
||
|
11" (279.4mm) | 11.2" (284.48mm) | 10.3" (261.62mm) | 1.0 BSPP | 8 Lb (3.63 Kg) | 141-0110- |
$292.18
|
||
|
10" (254mm) | 10.25" (260.35mm) | 9.2" (233.68mm) | 1.0 BSPP | 5 Lb (2.27 Kg) | 141-0100- |
$219.87
|
||
|
9" (228.6mm) | 9.1" (231.14mm) | 8.2" (208.28mm) | 1.0 BSPP | 4.5 Lb (2.04 Kg) | 141-0090- |
$205.82
|
||
|
8" (203.2mm) | 8.55" (217.17mm) | 7.7" (195.58mm) | 1.0 BSPP | 3.5 Lb (1.59 Kg) | 141-0080- |
$187.39
|
||
|
7" (177.8mm) | 7.3" (185.42mm) | 6.55" (166.37mm) | 1.0 BSPP | 3.5 Lb (1.59 Kg) | 141-0070- |
$183.91
|
||
|
6" (152.4mm) | 6.55" (166.37mm) | 5.9" (149.86mm) | 0.5 BSPP | 1.5 Lb (0.68 Kg) | 141-0060- |
$80.31
|
||
|
5" (127mm) | 5.393" (136.98mm) | 4.842" (122.98mm) | 0.5 BSPP | 2 Lb (0.91 Kg) | 141-0050- |
$74.95
|
||
|
4.5" (114.3mm) | 4.724" (119.99mm) | 4.4" (111.76mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0045- |
$57.30
|
||
|
4" (101.6mm) | 4.133" (104.97mm) | 3.779" (95.98mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0040- |
$56.88
|
||
|
3.5" (88.9mm) | 3.7" (93.98mm) | 3.503" (88.97mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0035- |
$56.23
|
||
|
3" (76.2mm) | 3.425" (86.99mm) | 2.795" (70.99mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0030- |
$52.21
|
||
|
2.5" (63.5mm) | 2.775" (70.48mm) | 2.44" (61.97mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0025- |
$45.52
|
||
|
2" (50.8mm) | 2.44" (61.97mm) | 1.889" (47.98mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0020- |
$38.02
|
||
|
1.5" (38.1mm) | 1.889" (47.98mm) | 1.456" (36.98mm) | 0.5 BSPP | 1 Lb (0.45 Kg) | 141-0015- |
$41.35
|




























Annular Seals, Inflatable and Mechanical
Custom Manufacturing Solutions
Drain Flushers & Sewer Cleaning Tools
Duct Balloons, Grout Bags, Bladders
Hot Tap Machines & Equipment
Inflation Accessories & Pipeline Fittings
Lifting Bags, Inflatable
Packers Carriers, Relining Inflatable
PeteStop® Inflatable Line Stop Pipe Plugs to block Pressurized Pipelines
PeteStop® Line Stop Systems, Components & Tools
Pipe Plugs - Inflatable All Types
Pipe Plugs - Mechanical All Types
Pipe Plugs, Inflatable Rubber Molded
Pipe Plugs, Mechanical High Pressure
Pipe Plugs, Mechanical Low Pressure
Pipe Plugs, Multi-Flex® Chemical Resistant
Pipeline Test Equipment
Temperature and Pressure Test Plugs
Tools for Contractors
