Product details
Weiss Extended Test Plug | BP25L-NR | 1/4″ NPT | 1.5″ Lagging Extension
Product Description
The BP25L-NR is engineered for efficiency in mechanical rooms where space and insulation are key factors. The “BP” signifies a Brass Plug body, while the “25” indicates the 1/4″ NPT process connection—ideal for smaller pipelines or equipment tapping points. The “L” (Lagging) designation confirms the presence of a 1.5-inch (38 mm) extended neck, allowing the test point to protrude beyond thermal insulation.
While the model suffix mentions NR (often associated with Neoprene), this specific product code (90105) is frequently cross-referenced with Nordel (EPDM) cores in the Weiss catalog for enhanced temperature and chemical resistance. This makes it a versatile choice for both chilled water and hot water systems in Dubai and Abu Dhabi, where high-performance sealing is required for balancing and flow verification.
Key Features
- 5″ Lagging Extension: Ensures the test point remains accessible and clean on pipes with standard or thick thermal insulation (lagging).
- Self-Sealing Valve Design: Allows for the insertion of a pressure gauge probe or thermometer without system shutdown; the internal core reseals immediately upon removal.
- Corrosion-Resistant Brass Body: Built to withstand the humidity and saline conditions typical of the Middle East, ensuring long-term durability.
- Nordel (EPDM) Compatibility: Rated for a wider temperature range compared to standard Neoprene, making it suitable for hot water heating and chilled water systems.
- Compact 1/4″ NPT Size: Perfectly suited for smaller piping, manifolds, or pump casings where a 1/2″ port is too large.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | BP25L-NR (Code: 90105) |
| Connection Size | 1/4″ NPT |
| Lagging Extension | 1.5″ (38 mm) |
| Core Material | Nordel (EPDM) / Neoprene Compatible |
| Body Material | Heavy Duty Brass |
| Max Pressure | 1,000 PSI (69 BAR) |
| Max Temperature | Up to 135°C (275°F) with Nordel core |
| Application | Chilled Water, Hot Water, Compressed Air |
Frequently Asked Questions
- Q: Why use a 1/4″ NPT test plug instead of 1/2″?
- A: 1/4″ NPT is the standard for smaller branch lines and many HVAC equipment ports. It requires a smaller tapping, which preserves the structural integrity of thin-walled pipes.
- Q: Is the Nordel core better for the UAE climate?
- A: Yes, Nordel (EPDM) handles higher temperatures (up to 275°F) much better than Neoprene, making it safer for systems that might experience hot water surges or proximity to boiler equipment.
- Q: Does it include a secondary seal?
- A: Yes, all Weiss BP series plugs come with a threaded brass cap and a gasket to act as a secondary safety seal when the plug is not in use.
