Description
Overview:
The Brass 1" BSP Female Thread Blanking Cap with Securing Chain is a durable end cap designed to seal and protect unused male BSP outlets on valves, pumps, manifolds, tanks, and pipework. Made from solid brass for strength and corrosion resistance, it provides a tight, reliable closure to prevent leaks, dirt ingress, and thread damage during operation or storage. The cap uses a 1 inch BSPP (parallel) female thread, equivalent to 1 inch (25.4 mm nominal), and is supplied with a leather washer to improve sealing on flat-faced fittings. A retaining chain helps prevent loss during maintenance. Finished with an external hex for easy tightening with a spanner, this cap is a practical choice for plumbing, construction, industrial, and agricultural systems. MPN: 343 100.
Key Features:
- Brass construction for long service life and resistance to corrosion
- 1 inch BSPP (parallel) female thread, 1 inch (25.4 mm nominal) size for common UK fittings
- Supplied with a leather washer to enhance sealing performance on flat seats
- Securing chain reduces the risk of misplacement during servicing
- External hex head for positive grip and easy tightening with a spanner
- Helps prevent leaks, contamination, and thread damage on idle outlets
- Smooth internal face supports consistent, repeatable sealing
- Suitable for typical fluids such as water, air, and light oils (check system compatibility)
- Reusable component for routine maintenance and system isolation
- Clean, compact form factor for use in tight spaces
Typical Applications:
Sealing unused male BSP outlets on water pumps, pressure washers, air systems, fuel or oil transfer lines, irrigation manifolds, and industrial plant. Useful during installation, testing, or maintenance to cap off branches, protect threads in transit, and temporarily isolate circuits on construction sites, workshops, and agricultural equipment.
Also known as:
Blanking cap, BSP end cap, female cap, thread protector cap, sealing cap, dust cap, BSPP cap, female threaded cap, pipe cap, closure cap.
Product Specifications
| L&S Part No. | 343 100 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - Brass construction resists corrosion and ensures long service life - 1 inch BSPP female thread fits common UK fittings - Leather washer enhances sealing on flat-faced fittings - Securing chain prevents loss during maintenance - External hex head allows easy tightening with a spanner |
