Questions and answers

What is the use of zone control valve in fire fighting?

What is the use of zone control valve in fire fighting?

Zone Control Valve is a system designed to separate the area in case of maintenance and to get the indication of fire zone on a combination of Butterfly valve, Flow Switch, Pressure Gauge and Test & Drain Valves.

What is test and drain valve?

Description. It is used to conduct testing and maintenance on sprinkler systems. The orifice diameters of the smallest sprinkler and the test drain valve in the system should be equal. It is also used as a drain valve to discharge water in the piping by changing the position of the valve.

What is a fire check valve?

Check valve, also known as non-return valve, one-way valve, is used to allow water to flow through it in only one direction, and it works automatically without any external control. It typically applies for the fire pipelines between water main and private fire service systems, or at the fire pumper connections.

What is alarm check valve assembly?

The alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system. When a flow of water from the system equals or exceeds that of a single sprinkler, the valve is to actuate a fire alarm.

What is the use of zone control valve?

How does a zone control valve work?

Each zone valve is controlled by its own zone thermostat. End switches in each zone valve control the central circulator and the burner. On a call for heat, the valve is opened. This ensures that the circulator and burner are powered when any zone calls for heat.

What is zone control valve?

Where is an alarm check valve located?

At its basic core, a valve is going to help control water throughout a web standpipe system. This could be underground, but the majority of alarm check valves are used above ground, usually in buildings and high rises.

Do fire hydrants have check valves?

The check valve is independent of the hydrant shoe. Therefore, it can be installed on all hydrants in inventory or even those previously in service. Unlike units that are integral to the fire hydrant, you can reuse the Series 2100 Security Check Valve should the need arise.

Where is the alarm check valve located?

What is a zone control valve?

What are the parts of a zone control valve?

ZONE CONTROL VALVE Zone control valve is a combined unit of 4 parts: signal butterfly valve, waterflow indicator, pressure gauge and test & drain valve. They are assembled on fire pipeline to separates the fire area into small distribution zone for indication and control.

What kind of valves are used in fire protection systems?

Since then, TESTanDRAIN® valves have been installed on many fire protection systems throughout the world. TESTanDRAIN® valves are now made in more styles, sizes, and orifice options than any other valve on the market today.

How to test a fire sprinkler backflow valve? Sizing the main drain connection so that it can flow the sprinkler system demand flow rate provides practical means for performing the forward flow test of the backflow device as required by Drains shall discharge outside or to a drain connection capable of handling the flow of the drain.

How to record the pressure of a fire alarm?

After pressurizing the whole system, keep it for 24 hours under observation. Record the pressure indicated in each zone control valve. Open gradually / slowly the drain valve of the zone control valves floor by floor. Alarm system should indicate fire signal in the building. Record the pressure indicated in each zone control valve.