Threaded Plug
Threaded Plug Pipe Fittings
Threaded Plugs are forged pipe fittings that secure the ends of threaded pipes and fittings. It’s screwed into a pipe or fitting to stop the flow and create a tight seal. Threaded plugs are commonly employed in low-pressure applications and are suitable for both temporary and permanent pipe terminations.
| Product Type | Range (Sizes) | Material | Thread Type | Applications | Key Features |
|---|---|---|---|---|---|
| Square Head Plug | 1/8″ to 4″ (NPT), DN 6 to DN 100 | Stainless Steel (304, 316, 310S), Carbon Steel, Alloy Steel, Brass | NPT, BSPT, BSPP | Oil & gas, petrochemical, pipeline sealing, leak testing | Forged for durability, ASME B16.11 compliant, high pressure (3000LB, 6000LB), corrosion-resistant |
| Hex Head Plug | 1/16″ to 4″ (NPT), M5 to M48 (Metric) | Stainless Steel (304, 316), Carbon Steel, Brass, Alloy Steel | NPT, BSPT, BSPP, Metric, UNF | Chemical processing, hydraulic systems, plumbing | Corrosion-resistant, ASME B16.11 compliant, pressure classes (2000, 3000, 6000), easy to install with wrench |
| Round Head Plug | 1/8″ to 2″ (NPT), M10 to M50 (Metric) | Stainless Steel, Carbon Steel, PVC, Polypropylene | NPT, BSP, Metric | Plumbing, irrigation, temporary pipe sealing | Smooth finish, corrosion-resistant (for SS/PVC), MSS-SP-95 compliant, suitable for low-pressure systems |
| Countersunk Plug | 1/4″ to 2″ (NPT), M8 to M36 (Metric) | Stainless Steel, Brass, Polyethylene, LDPE | NPT, BSP, UNF, Metric | Automotive, electronics, masking during painting | Flush installation, protects threads from debris, chemical-resistant (plastic variants), slotted for easy removal |
Dimensions: Hex, Square, and Round Head Plugs
Hex Plug
| NPS | Min Length E | Min Hex Height J | Nominal F |
| 1/2 | 14 | 8 | 22 |
| 3/4 | 16 | 10 | 27 |
| 1 | 19 | 10 | 35 |
| 1.1/4 | 21 | 14 | 44.5 |
| 1.1/2 | 21 | 16 | 51 |
| 2 | 22 | 18 | 63.5 |
| 2.1/2 | 27 | 19 | 76 |
| 3 | 28 | 21 | 89 |
| 4 | 32 | 25 | 117.5 |
Square Head Plug
| NPS | Min Length E | Min Square Height C | Min Width Flats B |
| 1/2 | 14 | 10 | 14 |
| 3/4 | 16 | 11 | 16 |
| 1 | 19 | 13 | 21 |
| 1.1/4 | 21 | 14 | 24 |
| 1.1/2 | 21 | 16 | 28 |
| 2 | 22 | 18 | 32 |
| 2.1/2 | 27 | 19 | 36 |
| 3 | 28 | 21 | 41 |
| 4 | 32 | 25 | 65 |
Round Head Plug
| NPS | Min Length A | Nominal Head Dia D | Min Length E |
| 1/2 | 44 | 21 | 14 |
| 3/4 | 44 | 27 | 16 |
| 1 | 51 | 33 | 19 |
| 1.1/4 | 51 | 43 | 21 |
| 1.1/2 | 51 | 48 | 21 |
| 2 | 64 | 60 | 22 |
| 2.1/2 | 70 | 73 | 37 |
| 3 | 70 | 89 | 28 |
| 4 | 76 | 114 | 32 |
Advantages:
Easy to install and remove
Corrosion-resistant material options
Leak-proof under proper installation
Cost-effective solution for sealing pipe ends
Applications:
Oil & Gas Industries
Chemical & Petrochemical Plants
Water Treatment Facilities
Power Generation
Hydraulic Systems