Description
Overview:
The 4" BSP Female Malleable Iron Pump Coupling with Hose Tail and Leather Washer (MPN 870 400) is a heavy-duty connector for joining large-bore hoses to pumps and fixed pipework. Made from robust malleable iron, it provides the strength needed for regular handling on site and dependable service in demanding fluid transfer tasks. A 4" BSP female thread (4 inches ≈ 101.6 mm) mates to compatible male BSP fittings, while the integral hose tail accepts a 4" (≈ 101.6 mm) hose for high flow rates. Supplied with lugs for secure tightening and a leather washer for a positive seal, it suits construction site pumps, dewatering systems, and general industrial plumbing found on plant and garden machinery support equipment.
Key Features:
- Durable malleable iron body for long service in tough environments
- 4" BSP female thread (≈ 101.6 mm) for direct connection to standard BSP pump outlets and pipe fittings
- Integrated 4" hose tail (≈ 101.6 mm) to couple large-bore suction or delivery hose
- Leather washer included to help achieve a tight, leak-reducing seal
- External lugs for easy tool-assisted tightening and secure installation
- Smooth internal bore on the tail to support flow and reduce restriction
- Suitable for water and general fluid transfer in construction and industrial settings
- Simple, serviceable design with common spares (e.g. leather washer) for maintenance
- Stable connection that helps minimise vibration-related loosening
- Practical choice where reliability and straightforward fitting matter
Typical Applications:
Connecting 4" hoses to centrifugal or trash pumps for site dewatering, flood control, irrigation, washdown, and general water transfer. Useful across construction sites, utilities, agriculture, quarries, and yard operations. Often used on pump sets feeding or drawing from storage tanks, sumps, or pits, and on temporary pipe runs where a strong but serviceable hose connection is required.
Also known as:
Female BSP hose tail coupling, pump hose coupling, hose tail connector, BSP female hose adapter, pipe-to-hose fitting, suction and delivery hose coupling, threaded hose tail, iron hose connector, pump outlet coupling, 4-inch hose adapter.
Product Specifications
| L&S Part No. | 870 400 |
|---|---|
| Unit of Sale | 1 |
| Size | 4" BSP |
| Machine Type | Pumps |
| Key Features | - 4" BSP female thread for standard pump outlets - Integrated 4" hose tail for large-bore hoses - Malleable iron body for durability - Leather washer for leak-reducing seal - External lugs for secure tightening |
