Sample interview questions: Can you explain your knowledge of different valve types used in hydronic systems and their functions?
Sample answer:
There are several different valve types used in hydronic systems, and each serves a specific function. Understanding these valves and their functions is crucial for a Plumbing > Hydronic Technician.
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Ball Valves: Ball valves are commonly used in hydronic systems as shut-off valves. They have a ball with a hole in the middle that controls the flow of water. When the handle is in line with the pipe, the valve is open, allowing water to flow. When the handle is perpendicular to the pipe, the valve is closed, stopping the water flow.
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Gate Valves: Gate valves are another type of shut-off valve commonly found in hydronic systems. These valves have a gate or wedge-shaped disk that moves up and down to control the water flow. When the valve is fully open, the gate is lifted, allowing unrestricted water flow. Conversely, when the valve is closed, the gate blocks the flow completely.
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Globe Valves: Globe valves are primarily used to regulate the flow of water and control the pressure within a hydronic system. They have a globe-shaped body with a movable disk or plug that controls the flow. By adjusting the position of the disk, the technician can regulate the flow rate accurately.
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Check Valves: Check valves are essential in preventing backflow in hydronic systems. They allow water to flow in one direction while blocking rever… Read full answer
Source: https://hireabo.com/job/12_0_14/Hydronic%20Technician