Coliter ® Reducing Female Elbow, PN16, 0–120°C, BSP Threaded
GJ3017 Reducing Female Elbow – Compact Brass Fitting for Pipe Diameter Transition
The Coliter® GJ3017 Reducing Female Elbow is a forged brass 90-degree elbow designed to connect two pipes of different diameters while changing flow direction. It features female ISO 228 (BSP) parallel threads on both ends, with common configurations such as 20×G1/2" and 25×G3/4", enabling seamless integration between main supply lines and smaller fixture branches. Rated for PN16 (1.6 MPa) and suitable for hot and cold water within a temperature range of 0°C to 120°C, it ensures reliable, leak-free performance in residential and commercial plumbing systems. Its compact design makes it ideal for tight spaces in bathrooms, kitchens, and HVAC installations where space efficiency and smooth flow transition are essential.
Installation diagram
Product Description
| DN | L | Z | d |
| 20*G1/2"F | 33 | 22.5 | 20 |
| 25*G3/4"F | 39.5 | 26 | 20 |
Technical Specifications
Nominal Pressure: 1.6 MPa
Working Medium: Hot and Cold Water
Working Temperature: 0℃ ≤ t ≤ 120℃
Pipe Threads: ISO 228
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Introduction to Elbow
Coliter® supplies a full range of brass elbow fittings, including equal 90° elbows (e.g., GJ3002, GJ3009) and reducing female/male elbows (e.g., GJ3017, GJ3018), designed for smooth directional changes in residential and commercial plumbing. Made from high-quality forged brass with lead-free compliance (<0.25% pb="">ISO 228 parallel threads (G1/2", G3/4", G1") and are rated for PN16 (1.6 MPa) at temperatures up to 120°C. Ideal for tight-space installations in bathrooms, kitchens, and HVAC lines—ensuring leak-free connections, corrosion resistance, and long-term reliability. Backed by ISO-certified production and global OEM support.
