Pipe Plug, Nylon, Hand Tite, 142 Series

Plugs under 15" Rugged nylon and
Polyisoprene rubber construction.

15" and 18" plugs have stainless steel
thumb screws and brass inserts.
Hand Tightening Nylon Body Test Plugs features include:
- By-pass is a standard feature on 10", 12", 15", and 18" diameter
- By-pass available on special order for smaller size plugs
- Low cost
- Light weight
- Reusable
- Nylon pipe plugs can be buried indefinitely
- Easily installed, no tools required
- No metal parts up to 12" sizes
142-Series Mechanical Hand Tightening Test Plugs Operation & Maintenance Instructions
Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions


| Image | Dia. Max | Dia. Min | By-Pass | Shipping Wt. | Item Number | Price | Qty | Action |
|---|---|---|---|---|---|---|---|---|
|
18.25" (464mm) | 17.75" (451mm) | Standard | 8 Lb (3.63 Kg) | 142-018- |
$860.00
|
||
|
15.25" (387mm) | 14.75" (375mm) | Standard | 6 Lb (2.72 Kg) | 142-015- |
$688.00
|
||
|
13" (330mm) | 11.75" (298m) | Standard | 5 Lb (2.27 Kg) | 142-012- |
$197.80
|
||
|
11" (279mm) | 9.75" (248mm) | Standard | 4 Lb (1.81 Kg) | 142-010- |
$163.40
|
||
|
8.87" (225mm) | 7.87" (200mm) | None | 3 Lb ( 1.36 Kg) | 142-008- |
$55.90
|
||
|
6.75" (171mm) | 5.75" (146mm) | None | 3 Lb (1.36 Kg) | 142-006- |
$30.10
|
||
|
5.75" (146mm) | 4.75" (121mm) | None | 2 Lb (0.91 Kg) | 142-005- |
$27.95
|
||
|
4.75" (121mm) | 3.75" (95mm) | None | 1 Lb (0.45 Kg) | 142-004- |
$25.80
|
Nylon Hand Tightening Test Plugs are an affordable option for sealing and testing pipelines in a range of maintenance and repair applications. These lightweight, reusable plugs feature a durable nylon body and tough rubber seal, providing consistent performance without tools or equipment.
With corrosion-resistant materials and optional bypass capabilities, the 142 Series is suitable for both temporary and long-term installations, even in environments where the plug may remain buried.
What is a Nylon Hand Tightening Pipe Plug?
A nylon hand tightening pipe plug is a reusable mechanical test plug which seals the internal diameter of a pipe by hand tightening it in place, no tools required. These plugs use a durable nylon body and a flexible rubber seal to form a solid hold, effectively blocking or isolating a pipeline for testing, maintenance, or temporary closure.
Key Features and Benefits of Nylon Body Test Plugs
Petersen's 142 Series Nylon Hand Tightening Test Plugs are designed for ease of use and long-term performance in a variety of pipe sealing and testing applications.
Here is a list of key benefits:
- Lightweight construction - These plugs, made of durable, corrosion-resistant nylon, are easy to handle and install, even in tight areas or overhead applications.
- Tool-free Tightening Mechanism - The hand tightening design eliminates the need for tools, allowing for easy installation and removal without specialist equipment.
- Reusable across multiple applications - The 142 Series is designed for repeated usage and provides a reliable and cost-effective solution for routine maintenance and testing operations.
- Suitable for permanent installations - These plugs are designed to withstand long-term use and can be buried indefinitely without compromising performance.
- Cost-effective Sealing Solution – These Nylon body test plug offers reliable performance at a lower cost, making it an excellent choice for a wide range of pipe isolation and testing applications.
Applications of Nylon Hand Tightening Pipe Plugs
142 Series Nylon Hand Tightening Test Plugs are versatile and ideal for a wide range of pipeline sealing and testing applications. Common applications include:
- Pipeline Pressure Testing - These plugs are suitable for isolating portions of pipe during hydrostatic pressure testing, offering a secure and durable closure without the use of equipment.
- Temporary Pipe Sealing for Maintenance and Repair - Quickly shut down pipelines for maintenance, repairs, or modifications. The lightweight form allows for easy installation in confined or above places.
- Plumbing System Isolation - Effectively seal off plumbing lines during system inspections, leak testing, or fixture installs to reduce delay and disruption.
- Use in Chemical and Water Treatment Facilities – These pipe plugs are made of non-metallic materials, is ideal for areas where corrosion resistance is crucial, such as chemical processing plants and water treatment systems.
These applications make the 142 Series Nylon Hand Tightening Test Plugs an effective choice for fast, tool-free sealing in harsh situations.
Get Nylon Body Hand Tightening Pipe Plugs
Looking for a reliable and cost-effective solution for pipeline sealing and testing? The Petersen 142 Series Nylon Hand Tightening Test Plugs are lightweight and reusable, meeting the majority of size, pressure, chemical, and temperature requirements.
Contact our team today for a quote or help selecting the right pipe plug for your application. Call 262-692-3100 or email sales@petersenproducts.com.
FAQs
What are nylon test plugs used for?
Nylon test plugs are used to seal off pipe ends during pressure testing, leak detection, or maintenance work. Their non-metallic construction makes them ideal for applications where corrosion resistance is critical, such as plumbing, water treatment, and industrial pipeline systems.
What is the advantage of using Nylon Body Test Plugs over metal plugs?
Nylon Body Test Plugs are lightweight, corrosion-resistant, and easy to install without tools. Unlike metal plugs, they are suitable for permanent installations where the plug may remain buried or exposed to harsh chemicals, making them a reliable long-term solution.
Do Nylon Body Test Plugs require special tools for installation?
No. Nylon Body Test Plugs in the 142 Series feature a hand-tightening mechanism that allows for easy installation and removal without the need for tools or additional equipment.
Do Nylon Body Test Plugs come with bypass options?
Yes, larger nylon test plugs come with a standard bypass feature. Bypass fittings are also available for smaller sizes upon request, allowing for pressure relief or fluid flow through the plug during testing.









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