Petersen 137-010-8 Inflatable Pipe Test Plug with 2 Inch Bypass FNPT for 8.6 Inch to 10 Inch Pipe

Key Facts

• Inflatable plumber test style pipe plug designed for nominal 10 inch pipeline applications
• Expandable sealing range from 8.6 inch to 10 inch (218 mm to 254 mm)
• Integrated 2 inch FNPT bypass allows controlled flow-through during testing or maintenance
• Molded NR/BR rubber body helps provide flexible sealing performance
• Plated carbon steel hardware designed for industrial plumbing and pipeline environments
• Schrader tire inflation valve molded into the body for standard air inflation connection
• Approximate contact length of 11.8 inch (300 mm)
• Maximum service temperature rated to 158 degrees F (70 degrees C)

Overview

The 137-010-8 inflatable pipe plug is designed for pipeline testing, temporary isolation, maintenance, and flow-through plumbing applications in pipes ranging from 8.6 inch to 10 inch diameter. The integrated 2 inch FNPT bypass connection allows liquid or air flow through the plug while maintaining sealing capability inside the pipeline.

The molded NR/BR rubber body is paired with plated carbon steel hardware for demanding industrial and commercial plumbing applications. The plug inflates through a molded Schrader tire valve using standard inflation equipment.

Product images are for reference only and may vary.

Features

• Inflatable sealing design for temporary pipe isolation and testing
• 2 inch FNPT bypass connection for controlled flow-through operation
• Suitable for sewer, drain, plumbing, and pipeline maintenance applications
• Molded rubber construction designed for flexible expansion inside pipe walls
• Plated carbon steel hardware for durability and support
• Standard Schrader inflation valve simplifies setup and inflation
• Designed for professional contractor and municipal utility use

Technical Specifications

• Part Number: 137-010-8
• Nominal Pipe Size: 10 inch (254 mm)
• Expansion Range: 8.6 inch to 10 inch (218 mm to 254 mm)
• Estimated Contact Length: 11.8 inch (300 mm)
• Bypass Connection: 2 inch FNPT
• Inflation Port: Schrader Tire Valve, Molded In
• Inflation Pressure Required: 36 psi (2.48 bar)
• Maximum Pipeline Pressure: See manufacturer back pressure chart
• Maximum Service Temperature: 158 degrees F (70 degrees C)
• Body Material: Molded NR/BR Rubber
• Hardware Material: Plated Carbon Steel
• Shipping Weight: 12 lb (5.44 kg)
• Country of Origin: Slovenia

Use Cases

• Pipeline pressure testing and maintenance
• Drain and sewer line isolation
• Temporary pipe blocking during repair work
• Flow-through bypass testing applications
• Commercial and industrial plumbing service operations
• Municipal utility maintenance and inspection work

What’s Included

• Inflatable pipe test plug with integrated 2 inch FNPT bypass

Installation Notes

• Always verify pipeline size and pressure requirements before installation
• Inflate only to the manufacturer recommended inflation pressure
• Consult the manufacturer back pressure chart before use
• Ensure the plug is properly secured during testing operations

Category FAQs

What is the purpose of the 2 inch bypass connection?

The integrated 2 inch FNPT bypass allows air, water, or other media to pass through the plug while the pipe remains temporarily sealed for testing or maintenance operations.

What pipe sizes is this inflatable plug designed for?

This model is designed for pipes ranging from 8.6 inch to 10 inch diameter.

How is the plug inflated?

The plug uses a molded Schrader tire valve for inflation with compatible air equipment.

Can this plug be used for sewer and drain testing?

Yes. Inflatable pipe plugs are commonly used for sewer, drain, plumbing, and pipeline testing and isolation applications.

Why is the back pressure chart important?

The allowable pipeline pressure varies depending on pipe conditions, plug placement, and application requirements. Always follow the manufacturer pressure guidelines before operation.

What material is used for the inflatable body?

The body is manufactured from molded NR/BR rubber designed for flexible sealing performance.

Can this plug be reused?

Inflatable test plugs are commonly used in repeat maintenance and testing operations when properly inspected and maintained according to manufacturer recommendations.

Is this suitable for industrial maintenance applications?

Yes. This inflatable pipe plug is designed for professional plumbing, pipeline, contractor, and industrial maintenance environments.