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The Leyon FM UL Series TY FRB 2.8 4.2 5.6 8.0 K Factor Upright Pendent and Recessed Sprinklers Quick Response Standard Coverage 3 mm glass bulb sprinklers, available in Upright, Pendent, and Recessed Pendent types. Suitable for light and ordinary hazard commercial areas such as banks, hotels, and shopping malls, the Recessed Pendent model is designed for use with finished ceilings.
| Model | TY FRB 2.8, 4.2, 5.6,8.0 K factor |
| Material | Bronze |
| Type | Upright, Pendent,and Recessed Pendent |
| K-factor, gpm/psi% (Lpm/bar%) | 2.8 (40,3)-8.0(115,2) |
| Temperature Rating °F (°C)1 | 155°F (68°C)-286°F (141°C) |
| Thread Coefficient | 1/2 in. NPT
3/4 in. NPT |
| Maximum Working Pressure, psi (bar) | 175 psi (12,1 bar) |
From soaring commercial towers and industrial plants to vital municipal projects and residential complexes, our firefighting valves provide unmatched reliability where safety matters most. Designed to perform under pressure, they safeguard lives and assets across diverse environments—ensuring your fire protection system is always ready when it counts.
We deliver reliable firefighting valves with advanced manufacturing, strict testing, and global standards—backed by fast delivery and expert support.
A1: Our products meet ISO, UL, FM, CE and other international certifications to satisfy different market and project requirements.
A2: Yes, we offer customization in size, pressure rating, connection type, and surface treatment to meet specific application needs.
A3: Standard models can usually be shipped within 7–15 days. Bulk or customized orders will require confirmation of the exact lead time.
A4: We implement strict raw material inspection, process control, and final product testing, backed by warranty and after-sales support.
