Whether you're looking for a test and drain valve to perform system tests or to replace a ball valve on a riser, QRFS has a variety of valves to fit your needs. Each model is tested and approved according to NFPA standards. In addition, they come in various sizes and options. It takes little effort to select the correct drain valve for your needs.

A test and drain valve is a device used in fire sprinkler systems. They're commonly found as part of riser assemblies. These valves are used to test the flow of water in the system, which can be a very important test when it comes to ensuring the health of a system.

Test and drain valves are also used for maintenance and installation purposes. They are designed with a sight glass to allow you to see the flow of water in the system. You can also use the valve to test the system's flow switch. In addition, test and drain valves are often used to test alarm devices on lines.

Test and drain valves should be designed to match the pressure rating of the wet pipe sprinkler system. They can also drain excess water vapor. The valve should be designed to allow for a gradual decrease in pressure. If the pressure does not slowly return to the original setting, this can indicate that the water supply is not working properly.

In order to ensure that you have a system that can withstand a fire, you'll need to perform annual testing. This is a basic requirement for most fire sprinkler systems. It's also important to perform additional testing after the system is repaired or undergoes maintenance. For instance, if there is a leak, the system should be tested before the alarm goes off.

The main drain valve should be opened to the full open position. It should then be closed slowly. Once closed, the valve should recover to its original pressure. In some cases, the valve can be partially closed. If this is the case, you may be able to drain water for domestic use. However, this could affect the flow of water required for fire sprinklers. If the valve is partially closed, you should check the pressure on all valves in the system to make sure that they're working correctly.

In addition to testing the main drain, you'll need to test the system's risers. These valves should also be tested at least once a year, and may require additional testing during maintenance and repairs. For instance, if you have a multistory building, you may have sectional valves in the stairwells. If you install a sectional valve, you may also need to test the drain valve.

In addition to testing the main drain, it's also important to test the alarm system and panel. The water flow alarm should set off within 90 seconds. If the alarm goes off for more than ninety seconds, it may indicate that the water supply has been compromised.

2.5“FNPTX2.5“MNH