Description
Overview:
The Steel Drain Test Plug - 10" (255 mm) is a heavy-duty plug designed for safely sealing and testing drainage runs and pipework. Built from durable steel, it provides a secure mechanical seal across a wide internal diameter range of 239-275 mm, making it suitable for many 250 mm nominal drains. The plug includes a 1" (25.4 mm) outlet for connecting gauges, hoses, or valves during test procedures. It requires a minimum insertion depth of 55 mm and has an overall length of 150 mm for easy handling in confined access points. Rated to a maximum allowable back pressure of 7 psi (0.48 bar / 48 kPa), it supports low-pressure air or water tests commonly used in construction, plumbing, and grounds maintenance.
Key Features:
- Robust steel construction for dependable performance on site and in workshops
- Wide fit range: seals pipe IDs from 239 mm to 275 mm for versatile use across 10" systems (255 mm nominal)
- 1" (25.4 mm) outlet to attach test gauges, valves, or hose fittings for controlled testing
- Handles up to 7 psi (0.48 bar / 48 kPa) back pressure for standard drain test procedures
- Minimum insertion depth of 55 mm helps when access is limited or in shallow sockets
- Compact 150 mm length for easier positioning through chambers and access covers
- Reusable design for repeated test cycles and maintenance tasks
- Simple to fit and remove, aiding quick test setup and turnaround
- Suitable for common drain materials used in building and landscaping projects
- Provides a reliable temporary seal for isolation, integrity checks, and fault-finding
Typical Applications:
Air or water testing of new or repaired drainage sections, isolating pipe runs during maintenance, pressure decay checks, leak detection, and temporary blanking while cleaning or installing fittings. Useful for building sites, utilities, facilities maintenance, and landscaping projects where 10" (255 mm) drains are present.
Also known as:
Expansion test plug, mechanical drain bung, expanding pipe stopper, temporary pipe cap, sewer test plug, mechanical pipe bung, blanking bung, pressure test stopper, drain isolator plug, pipe sealing bung.
Product Specifications
| L&S Part No. | 200 936 |
|---|---|
| Unit of Sale | 1 |
| Size | 10" (255mm) |
| Key Features | - Seals pipe IDs from 239 mm to 275 mm - 1" outlet for gauges, valves, or hoses - Handles up to 7 psi back pressure - Minimum insertion depth of 55 mm - Compact 150 mm length for easy handling |
