Grooved Resilient Seated OS&Y Gate Valve combines the installation efficiency of a grooved connection with the operational safety and reliability of an OS&Y design.
It is a type of gate valve that is connected to the pipeline through a flange, and its valve stem only rotates during opening and closing without axial lifting.
Grooved Resilient Seated NRS Gate Valve is a cost-effective and space-saving shut-off valve designed for fast installation. Its combination of grooved ends and a non-rising stem makes it a practical choice for many commercial and industrial applications.
The gate valves are specially designed gate valves for fire protection pipeline systems, and their core function is to reliably connect or cut off water flow.
UL FM fire sprinkler heads refer to those that have been certified by Underwriters Laboratories (UL) and Factory Mutual Research (FM) in the United States. They feature high quality and safety and are widely used in various fire protection systems.
UL FM Fire Alarm Check Valve is a critical supervisory device installed on a fire sprinkler system. It's not one single object, but rather a system component with a specific purpose and certification.
It is not a direct fire detection device, but a dedicated device for real-time monitoring of the water level status of fire water sources (such as fire water tanks, water tanks, and Wells). Its core mission is to ensure that the fire water supply system has sufficient water available for use in the event of a fire.