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What else can I help you with?
Is the gas valve open or closed?
The gas valve is closed.
Is the saddle valve open or closed?
The saddle valve is open.
How do you know the gas valve is open or closed?
you look
Is the water line open or closed when the ball valve handle is in line with the pipe?
When the handle is in line with the pipe, the valve is open.
How can I determine whether a gas line is turned on or off?
To determine if a gas line is turned on or off, locate the gas meter and check the position of the valve. If the valve is parallel to the gas pipe, it is open (on). If it is perpendicular, it is closed (off). Be cautious and consider seeking professional help if unsure.
How can you tell if a ball valve is opened or closed?
The position of the handle indicates the direction of the opening through the ball, IE. handle in line with pipe, valve is open, tangent to pipe, valve is closed.
What AV and semilunar valve positions during ventricular diastole?
The AV valve is open and the semilunar valve is closed during ventricular diastole.
What is the difference between a control valve and a gate valve in a stand pipe system?
a gate valve is a one way totally open or closed valve, a control valve is a variable valve.
Does the valve prevent blood to get in the heart?
Yes and no. When a valve is open, it is allowingblood to enter the heart's chambers. When a valve is closed, it is preventing blood from entering a chamber.
Is normally open valve and fail open valve the same?
"Normally Open" or "Normally Closed" are classifications that refer to actuated (not manually operated) valves. For an actuated valve, the "normal" state refers to its position when the actuator is not energized.Therefore a normally open valve is one that is open until the actuator is energized to close it; if power to the actuator fails, the valve opens or "fails open".Likewise with a normally closed valve if power to the actuator fails, the valve closes or "fails closed".The "normal" state of an actuated valve must not be confused with the "usual" position of the valve during routine operation of the system. A normally closed valve may be open continuously over a long period of time while a process is running, but it is still a normally closed valve. It just happens that this normally closed valve is usually open.For an actuated valve to return to its "normal" position, there must be some force, often a spring, that moves the valve from its actuated state back to its normal state. If a valve is actuated to open and then actuated to close, it will "fail" in whichever position it is in when the activator is de-energized. This type of a valve is not considered "fail safe".A normally closed valve might be used in an application such as the loading of gasoline transport trucks where in the event of a power or automation system failure, you would want to stop flow.A normally open valve might be used in a situation where you want flow to continue in the event of a power or automation system failure. This might be the case for the cooling water system for a nuclear reactor or for an actuated valve on the water piping to the fire protection system.
Which valves in the heart are open during diastole?
During systole, both atrioventricular valves (tricuspid and mitral) are closed. The aortic valve is open. During diastole, both atrioventricular valves are open, and the aortic valve is closed.
What is the difference between a fail open valve and a fail closed valve?
Lets liken this to a garden hose, a hose in the normally open position has water flowing through it until it is closed by turning the spigot off, normally closed is the reverse. Oddly enough when it comes to an electronic relay the opposite is true, whereas the switch is in the open (normally open) position therefore having no current passing through it until a switch to close the circuit and allow current to flow. Normally closed has current flowing at all times until the switch interrupts it stopping the flow of electricity.
