30
Jul
2024
Last updated: 17 Mar 2025
Doron Eshel
The Necessity for UL429A Solenoid Certification for Deluge Valves
The UL429A certification ensures the reliability and safety of deluge valves used in fire protection systems. This certification verifies that the deluge valves meet the basic requirements of Underwriters Laboratories Inc. (UL) safety standards and ensure a high and reliable performance.
05
Sep
2018
Last updated date: 28 Dec 2021
Paul Goldsmith
Reducing Water Pressure Surge and Water Hammer in Fire Protection Systems
Water surge or water hammer is a pressure wave in a piping system caused when a fluid in motion is forced to stop or change velocity or direction suddenly. Pressure surges in fire water systems can be caused by a number of different factors, such as a valve closing or opening too quickly or a pump starting or shutting down suddenly. This momentum change can create a significant and potentially damaging pressure rise.
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Topics: Fire Protection, Water hammer in fire protection systems
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