HD Fire Flexible Sprinkler Drop
Heavy-Duty Industrial Pipe Connector
The Flexible Sprinkler Dropper is a high-performance, stainless steel braided hose designed to provide a reliable and adjustable connection for fire sprinkler systems. Engineered for high-pressure environments, it handles a rated working pressure of 175 PSI with a maximum surge capacity of 300 PSI. Its flexible design allows for a tight bend radius (as low as 4” to 8”), making it ideal for installation in congested ceiling spaces where rigid piping is difficult to maneuver. Available in various K-Factors, it supports both standard and high-flow sprinkler heads. This system significantly reduces installation time and allows for easy vertical or horizontal adjustment of the sprinkler head to match the final ceiling level perfectly.
PRODUCT DETAILS:
Property | Specification |
TYPE | Braided & Unbraided |
SIZES | 700mm, 1000mm, 1200mm, 1500mm, 1800mm |
MAXIMUM RATED PRESSURE | 200 psi and 175 psi* |
HYDRO TEST PRESSURE | 263 psi |
BURST PRESSURE | 875 psi |
MAXIMUM AMBIENT TEMPERATURE | *Mentioned on Pages 2 of 4 |
END CONNECTION | Inlet: 1" BSPT (M)Outlet: 1/2" BSPT (F) or 3/4" NPT (F) |
LARGEST SPRINKLER K-FACTOR FOR 1/2" OUTLET | HD-UB: 5.6HD-28B: 5.6 |
LARGEST SPRINKLER K-FACTOR FOR 3/4" OUTLET | HD-UB: 8.0, 11.2HD-28B: 8.0, 11.2 |
FLEXIBILITY | Limited |
APPROVALS | UL Listed / FM Approved |
ORDERING INFORMATION | Size, Type of Bracket, Length of Square Bar |


