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