Brass Plugs and Caps
A brass plug closes the open ends of brass fittings, valves or devices. The male plug screws into a female port, while the female cap screws onto a male end.
It is used on spare manifold outlets, unused ports of radiators and devices, and line ends during testing. Plugs come in 12 sizes from 1/8″ to 4″, caps in 9 sizes from 1/8″ to 2″.
Main Applications
- Unused manifold outlets
- Spare ports on radiators and devices
- Line ends during pressure testing
- Installation outlets to be opened later
- Drain and air release ports
- Threaded ports on pumps and tanks
Technical Data
| Fitting types | Male plug; female cap |
|---|---|
| Plug sizes | 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″ (product range) |
| Cap sizes | 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″ (product range) |
| Material | Brass CW617N (similar manufacturer sheet; depending on model) |
| Nominal pressure | PN16 (similar manufacturer sheet) |
| Max. working temperature | 160 °C (similar manufacturer sheet) |
| Surface | Natural brass |
| Thread | Plug male, cap female; G or R (depending on model) |
| Head | Hexagonal or plain (depending on model) |
| Sealing | Thread sealant or gasketed type (depending on model) |
| Production | Machined from bar (depending on model) |
| Media | Water, heating water, compressed air |
Material Options
| Part | Brass | Nickel-plated brass | Stainless (AISI 304) |
|---|---|---|---|
| Body | Brass CW617N (depending on model) | Brass body, nickel plated (depending on model) | AISI 304 stainless steel |
| Surface | Natural brass | Nickel plating | Uncoated stainless |
| Thread | Plug male, cap female; G / R (depending on model) | Depending on model | ISO 7-1 |
| Pressure rating | PN16, max. 160 °C (similar manufacturer sheet) | Depending on model | 20 bar −20…+38 °C (ISO 4144) |
| Suitable media | Domestic water, heating water, compressed air | Visible fixture connections | Food, chemicals, seawater |
Which material? If the closed port is brass, a brass plug avoids dissimilar metal contact; stainless plugs are preferred on stainless ports.
Advantages
For Every End
- Plug for female ports, cap for male ends
21 Sizes
- Plugs up to 4″, caps up to 2″
Reusable
- Can be removed and refitted
No Rust
- Brass body resists wet conditions
Construction and Design Features
- Plug with male thread and wrench head
- Cap with female thread and closed bottom
- Brass machined from bar
- Installation without welding
Send whether the end to close is female or male, its size and quantity; we will confirm the suitable plug or cap from stock.
How to Choose?
- Determine the end typeChoose a plug for a female port and a cap for a male end.
- Measure the sizeDetermine the thread size of the port or end in inches.
- Confirm the thread typeCheck whether the port has a G or R thread.
- Choose the sealingUse a gasketed or easily removable seal on ends removed often.
Complementary Products
Why ORFA?
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Details →Get a quote for your project
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