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The Beaded Plug is a type of pipe fitting designed to securely seal the end of a threaded pipe. Made from high-quality malleable cast iron, it features a beaded rim for enhanced strength and a tighter grip during installation. Available in both galvanized and black finishes, this plug is corrosion-resistant and suitable for high-pressure plumbing systems. It complies with standards such as EN10242 and ISO 7-1, ensuring durability and reliability in water, gas, and fire protection systems.
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The 80mm (3") GI Beaded Plug is a high-performance pipe fitting engineered to seal the end of threaded pipes securely. Crafted from premium malleable cast iron, this end cap features a unique beaded rim design that enhances structural strength and ensures a tighter grip during installation—critical for maintaining system integrity in high-pressure environments. Available in both galvanized (GI) and black finishes, it is built to resist corrosion, making it suitable for long-term use in diverse applications, from plumbing to fire protection systems. Compliant with international standards like EN10242 and ISO 7-1, this BSP threaded end cap guarantees reliability, durability, and consistency across water, gas, and industrial piping systems.
The following table outlines the technical parameters of the Malleable Iron Tee Reducer (63mm To 3/4"), ensuring compliance with global standards and consistent performance:
Parameter | Details |
Size | 3/8''x1/2''-4''x3'' (with specific focus on 63mm to 3/4" configurations) |
Material | Malleable iron (known for its ductility and strength under pressure) |
Standards Compliance | ISO 5922/ISO 049/ISO 7-1; EN 1562:1997/EN 10242:2003; DIN 2950/1692/2999; ANSI/ASTM A197/A197M; ANSI/ASME B16.3, B16.14, B16.39 |
Certifications | FM/UL/CE/ABNT/SNI/SIRM/TSE/ISI (ensuring adherence to safety and quality benchmarks across regions) |
Surface Treatment | Natural black finish; Hot-dip galvanized; Electro-galvanized |
Working Pressure | PN25/2.5Mpa/363PSI/class150/25bar (suitable for high-pressure operational environments) |
Maximum Temperature | 200°C (392°F) (resistant to thermal stress in temperature-fluctuating systems) |
Mechanical Properties | Tensile strength: ≥350MPA; Elongation: ≥10%; Hardness: ≤HB150 (ensuring durability and resistance to wear) |
At its core, the 80mm (3") GI Beaded Plug is forged from high-quality malleable cast iron—a material renowned for its ductility, impact resistance, and ability to withstand extreme pressure. This ensures the fitting can handle rigorous operational conditions without cracking or deforming. The beaded rim, a defining feature, adds an extra layer of reinforcement, preventing loosening over time and ensuring a leak-proof seal even in vibrating or high-flow systems.
Galvanized (GI) Finish: The galvanized coating provides a protective zinc layer, shielding the fitting from rust, oxidation, and chemical corrosion. This makes it ideal for outdoor applications, underground piping, or systems exposed to moisture, such as water supply networks or irrigation setups.
Black Finish: For indoor or low-moisture environments, the black finish offers a cost-effective alternative while retaining the base material's inherent strength. It is often used in industrial settings where aesthetics are secondary to functionality.
Designed with BSP threading (British Standard Pipe), the 80mm (3") GI Beaded Plug ensures universal compatibility with BSP-threaded pipes and fittings. This standardization simplifies installation, reduces the risk of mismatched components, and ensures a secure connection that minimizes leaks—critical for maintaining pressure in closed-loop systems.
Parameter | Details |
Size | 80mm (3") (part of a range covering 1/4''–4'') |
Material | Malleable cast iron |
Standards | EN10242, ISO 7-1, ISO 5922, EN 1562:1997, DIN 2950 |
Certifications | FM, UL, CE, ABNT, SNI, SIRM, TSE, ISI |
Surface Treatments | Galvanized (GI), Black |
Working Pressure | PN25, 2.5Mpa, 363PSI, Class 150, 25bar |
Max Temperature | 200°C (392°F) |
Tensile Strength | ≥350MPa |
Elongation | ≥10% |
Hardness | ≤HB150 |
In residential, commercial, and industrial plumbing, the 80mm (3") GI Beaded Plug serves as a reliable solution to seal unused pipe ends. By preventing leaks and contamination, it maintains water quality and system efficiency. Its corrosion-resistant galvanized finish makes it particularly useful in cold or hot water lines, where moisture exposure is constant. The beaded design ensures it stays securely in place, even during temperature-induced expansion or contraction.
Certified by FM and UL, this end cap is a staple in fire sprinkler systems. It seals off branch lines or unused sections of piping, preserving water pressure and ensuring the system activates quickly in emergencies. Its ability to withstand 2.5Mpa (363PSI) working pressure and high temperatures (up to 200°C) ensures it performs under the intense conditions of fire suppression.
In factories, processing plants, and manufacturing facilities, the 80mm (3") GI Beaded Plug is used to cap pipes during installation, maintenance, or testing. It prevents debris, dust, or foreign materials from entering the system, protecting sensitive equipment like pumps, valves, or meters. Its malleable iron construction resists damage from heavy machinery vibrations, making it suitable for industrial environments with high operational stress.
Heating, ventilation, and air conditioning (HVAC) systems rely on this end cap to seal off unused pipes, maintaining pressure and preventing fluid loss. Whether in chilled water lines or hot air ducts, the BSP threaded design ensures a tight fit, reducing energy waste and optimizing system performance. The galvanized finish also resists corrosion from condensation, extending the fitting’s lifespan in humid HVAC environments.
The 80mm (3") GI Beaded Plug combines robust construction, versatile finishes, and universal compatibility to deliver a sealing solution that meets the demands of modern piping systems. Its beaded design ensures long-term stability, while compliance with international standards and certifications ensures it integrates seamlessly into global projects. Whether for new installations or retrofits, this BSP end cap is engineered to perform—reducing maintenance costs, minimizing leaks, and ensuring system efficiency.
For inquiries about stock availability, bulk pricing, or technical support, contact our sales team today.
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