Product details
Weiss Test Plug | BP50NR | 1/2″ NPT | Neoprene Core
Product Description
The BP50NR allows technicians to quickly take pressure or temperature readings by inserting a gauge probe or a pocket thermometer through the self-sealing valve. The “BP” designation identifies this as a Brass Plug, while the “50” denotes the 1/2″ NPT connection size. The “NR” suffix signifies that the internal seal is made of Neoprene.
In the UAE’s mechanical sector, 1/2″ NPT test plugs are commonly installed at chiller inlets/outlets, pump headers, and heat exchangers. The Neoprene core is specifically chosen for its excellent performance in water-based systems, including chilled water and low-pressure steam, providing a reliable leak-proof seal after thousands of insertions.
Key Features
- Self-Sealing Valve Design: Automatically seals when the probe is removed, preventing fluid loss and eliminating the need for isolation valves.
- Neoprene Core (NR): Specifically engineered for water, air, and oil service. It offers superior resilience and sealing properties for standard HVAC temperature ranges.
- Heavy-Duty Brass Body: Provides excellent corrosion resistance and durability in the humid and saline environments of Dubai and Abu Dhabi.
- 1/2″ NPT Connection: A standard size for larger commercial piping systems, ensuring easy integration into pipe tees and manifolds.
- Cap with Retainer: Includes a threaded brass cap to protect the valve from debris and provide a secondary seal; the retainer strap prevents the cap from being lost during testing.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | BP50NR |
| Body Material | Brass |
| Core Material | Neoprene (NR) |
| Connection Size | 1/2″ NPT |
| Temperature Range | Up to 93°C (200°F) |
| Maximum Pressure | 1,000 PSI (69 BAR) |
| Application | Water, Air, Natural Gas |
Frequently Asked Questions
- Q: Why use Neoprene (NR) instead of Nordel (EPDM)?
- A: Neoprene is an excellent all-purpose seal for standard water and air. If the system involves higher temperatures (above 93°C) or specific chemicals, the Nordel (BP50NP) version is usually specified.
- Q: Can this be used for domestic water?
- A: Yes, it is widely used in domestic water lines for balancing and flow verification.
- Q: How long do the internal seals last?
- A: Under normal conditions, these plugs are designed for hundreds of insertions. However, it is always recommended to keep the brass cap tight when not in use to ensure a secondary safety seal.