Overview
The VTCON Cored Plug Style 291 provides a removable threaded closure for unused outlets, inspection points and temporary piping openings.
The square head supports installation and removal with a suitable wrench. The catalogue dimension table lists A dimensions from 1/2″ through 4″.
Select the thread size and finish according to the connected fitting and confirm sealing requirements and certification before use.
Key Features
• Male-threaded closure plug
• Square head for installation and removal
• Suitable for unused threaded outlets
• American Standard Class 300 product range
• Malleable iron material: ASTM A197 / A197M
• Catalogue size table: 1/2″–4″
Technical Specifications
| Items | Specification |
|---|---|
| Product Name | Cored Plug |
| Style | 291 |
| Product Type | Male threaded square-head plug |
| Product Class | American Standard Class 300 |
| Material | ASTM A197 / A197M |
| Connection | Male thread |
| Items | Specification |
|---|---|
| Dimensions Standard | ASME B16.3 / ASME B16.14 (as applicable) |
| Thread Standard | ASME B1.20.1 |
| Surface Finish | Black or galvanized finish shown in catalogue; confirm product-specific availability |
| Size Range | 1/2"–4" (DN15–DN100) |
| Certification | FM / UL shown for the product range; confirm certification and size range for each style before publication |
| Application | Threaded fire protection piping systems |
Product Structure & Dimensions
Cored Plug Structure & Dimensions
| Size (Inch) | Nominal Size (mm) | A (mm) |
|---|---|---|
| 1/2 | 15 | 23.9 |
| 3/4 | 20 | 27.2 |
| 1 | 25 | 31.8 |
| 1-1/4 | 32 | 34.5 |
| 1-1/2 | 40 | 36.9 |
| 2 | 50 | 39.7 |
| 2-1/2 | 65 | 46.0 |
| 3 | 80 | 49.0 |
| 4 | 100 | 64.5 |
Dimensions are for reference only. Please contact VTCON for detailed drawings and project requirements.