Key Features
- Marine-grade corrosion-resistant construction for long service life in saltwater environments
- Provides a tight, protective seal against dirt, moisture, and debris
- Compatible with standard NST / NH fire hose couplings for universal fit
- Quick twist-on installation — no tools required
- Rated for pressures up to 200 psi (14 bar) for reliable performance
- Design meets major maritime safety standards (SOLAS, USCG)
Technical Specifications
| Material | Marine-grade brass or aluminum |
| Size Range | 1.5" – 4" (DN40 – DN100) |
| Thread Type | NST / NH (National Standard Thread) |
| Pressure Rating | Up to 200 psi (14 bar) |
| Temperature Range | -20°C to +80°C |
| Standards | SOLAS, USCG approved |
| Application | Marine fire mains, hose couplings, hydrants |
Frequently Asked Questions
What materials is the fire hose coupling cap made of?
Our fire hose coupling caps are manufactured from marine-grade brass or aluminum, selected for their excellent corrosion resistance and durability in saltwater environments.
What sizes are available?
We offer sizes ranging from 1.5 inches to 4 inches (DN40 to DN100) in both NST and NH thread options, ensuring compatibility with standard shipboard fire hoses.
Does the cap prevent water leakage when the hose is pressurized?
The cap is designed for storage and protection of couplings, not for use as a pressure retaining device. It provides a tight seal against contaminants, not against pressurized water.
Is the cap compliant with SOLAS requirements?
Yes, the design meets SOLAS and USCG standards for fire safety equipment, making it suitable for commercial vessels and offshore installations.
Inquire About This Product
Contact us for pricing, availability, and bulk orders:
📧 [Email protected by JavaScript]
📞 [Phone protected by JavaScript]