Description
Overview:
Weldable Malleable Iron Female Sockets, Black, Type 181, 3" BSP, are robust straight couplings for joining two male threaded components in plumbing and industrial pipework. Made from malleable iron, they offer good toughness and resistance to shock and vibration, making them suitable for site and workshop use. The black finish provides a neat, professional look for exposed runs and is equally suitable for concealed installations. With a 3" (76.2 mm) BSP thread size and a 97 mm outer diameter, this Type 181 socket fits standard steel pipe systems and associated valves, unions, and adaptors. It delivers a secure, reliable connection for water, air, and general service fluids in plant rooms, construction projects, agricultural setups, and facility maintenance tasks.
Key Features:
- Weldable malleable iron body for strength and long service life.
- Black finish for a clean, professional appearance in exposed or hidden runs.
- Female-to-female straight socket for joining two male BSP components.
- 3" (76.2 mm) BSP size for broad compatibility across common pipe systems.
- Outer diameter 97 mm for secure handling and straightforward installation.
- Precision-cut BSP threads help achieve a tight, reliable seal.
- Compatible with standard thread sealants such as PTFE tape or jointing compound.
- Withstands impact and vibration typically found on site and in plant environments.
- Simple to fit with standard spanners; no special tools required.
- Suitable for water, air, and non-corrosive fluids in general service applications.
Typical Applications:
Joining steel pipe lengths, extending or repairing BSP pipelines, connecting valves and fittings on manifolds, assembling plant air lines, and building temporary or permanent services on construction sites. Commonly used for workshop compressed air, non-potable water supply, irrigation circuits, heating and cooling loops, and general factory services where a reliable female-to-female BSP connection is needed.
Also known as:
Female coupling, straight socket, barrel socket, black malleable iron coupling, BSP female-to-female connector, threaded joiner, pipe sleeve, iron socket fitting, Type 181 coupling, black BSP socket.
Product Specifications
| L&S Part No. | 181 300 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - Weldable malleable iron for strength and durability - 3" BSP thread size for broad compatibility - Female-to-female socket for joining male BSP components - 97 mm outer diameter for easy installation - Suitable for water, air, and non-corrosive fluids |


