Red Elbow

The malleable iron reducing elbow is a threaded pipe fitting used to connect two pipes of different sizes while changing the direction of the flow, typically at a 90-degree or 45-degree angle. Made from high-quality malleable cast iron, it offers excellent strength, pressure resistance, and durability. This fitting is commonly used in plumbing, fire protection systems, HVAC, and gas distribution networks.

Available in black or hot-dip galvanized finish, the reducing elbow ensures corrosion resistance and long-term performance. It complies with international standards such as ISO 7-1, BS 21, and ANSI B1.20.1, and is ideal for applications where space-saving and efficient pipe transitions are required.

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Product Description

The malleable iron reducing elbow is a high-quality threaded pipe fitting designed to connect two pipes of different sizes at an angle, typically 90 degrees. It provides a smooth directional change while accommodating a reduction in pipe diameter, making it ideal for compact or customized piping layouts.

Size	''1/2x3/8''-4''x3''
Material	malleable iron
Standard	ISO 5922/ISO 049/ISO 7-1，ISO 228	EN 1562:1997/EN 10242:2003	DIN 2950/1692/2999	ANSI/ASTM A197/A197M ANSI/ASME B16.3, B16.14, B16.39
Certifacate	FM/UL/CE/ABNT/SNI/SIRM/TSE/ISI
Surface Treatment	Nature Black
	Hot Dip Galvanized
	Eletro Galvanized
Work Pressures	PN25/2.5Mpa/363PSI/class150/25bar
Max Temperature	200°C (392°F)
Tensile Strength	≥350MPA
Elongation	≥10%
Hardness	≤HB150

Product Uses

1. Fire Protection Systems
RED Elbows are widely used in fire sprinkler systems to connect main pipes to smaller branch lines, allowing smooth water flow and precise distribution to sprinklers. Their high strength and pressure resistance ensure reliable operation during emergencies, especially in FM/UL-certified systems.

2. Building Water Supply and Drainage
In both residential and commercial buildings, RED Elbows connect pipes of different diameters and directions in water supply and drainage systems. Their strong corrosion resistance helps extend the system's service life, making them suitable for both hot and cold water circulation.

3. Industrial Pipeline Renovations
In factory or workshop retrofit projects, RED Elbows allow seamless transitions between different pipe sizes without major system overhauls. This helps reduce installation time and cost, while ensuring stable performance in gas, water, or oil delivery systems.

4. HVAC (Heating, Ventilation, and Air Conditioning) Systems
HVAC systems require numerous connections with varying diameters and angles. RED Elbows are ideal for linking chillers, cooling towers, fan coil units, and boilers, optimizing pipe layout, improving installation flexibility, and saving space in mechanical rooms.

5. Agricultural Irrigation Systems
In greenhouse and open-field irrigation systems, RED Elbows are used to branch smaller pipes off the main water line, adapting to different spray heads or drip systems. This ensures accurate water distribution and improves irrigation efficiency across varied terrains.

Application Areas