Means you can shut it off from a distance. Useful either in an automatic system or if you don't want to have someone being around the valve when it's time to shut it off.
the hot water valve shut off valve shuts off the hot water. The cold water valve shuts off the cold water. ;()
I take it that you are mounting it out side, put the shut off valve in side, with a drain on it,
spool valveA spool valve is a multidirectional hydraulic or pneumatic valve usually operated by a joystick. It has several hoses attached to it leading to different pneumatic rams. When the joystick is pushed in one direction, it causes the valve to shut off one of the pneumatic hoses leading to the ram and open the other. Which way the joystick is pushed moves the piston in the ram in or out. Since you specified a solenoid operated valve it is operated not by a joystick that is directly connected to the valve but rather an electric joystick like the you would use in a video game and an electrical signal is sent to activate a solenoid that does the same thing but can be much farther away from the operator. Solenoid Actuated Pneumatic Spool ValveA solenoid actuated pneumatic spool valve is a spool valve actuated by an electric solenoid. They are often used in industrial automation and are usually controlled by a PC or a PLC (Programmable Logic Controller) rather than a manual switch. To reduce the size and power consumption of the solenoid, often the solenoid does not directly actuate the spool. Instead, the solenoid actuates a small internal valve which directs upstream air pressure to move the spool. This is called an air piloted solenoid actuated pneumatic spool valve. The air pilot mechanism typically requires about 40 PSI to operate reliably. If the air pressure upstream of the valve is going to be less than 40 PSI, the valve must be externally piloted, meaning that the pilot is connected to a separate air source which is above 40 PSI.
Install in gas line to shut off gas to building after gas meter, or to isolate an appliance off a gas line.
Ball-joint shut off
A combination valve is a pneumatically actuated shut-off valve. It is integrated into a valve housing and is typically used for blocking and releasing a flow between an inlet and an outlet
Some times on/off valves are to large to be actuated using one solenoid valve,but most of the on/off valves are being actuated using only one solenoid valve
This depends what shut off valve is in question here. Where the leak is and what type of material is the shut off valve made of.
The heater control valve is used to shut off hot coolant from entering the core when the heater is in the off position. A heater control valve can be actuated by either a vacuum line or a cable from the vacuum heater control valve to the heater core. This hose should be warm; if not the heater control valve is stuck and needs to be replaced
the hot water valve shut off valve shuts off the hot water. The cold water valve shuts off the cold water. ;()
The gas shut off valve is currently in the off position.
Is the shut off valve in your plumbing system leaking?
Is the water shut off valve leaking in your home?
Can they shut my electric off in Maine in the month of march
If electric shut off the current to the elements, if gas shut off the gas valve. Open a hot water faucet to give it air, open the drain valve on the bottom of the heater.
If you have a leaky toilet shut off valve, you should first turn off the water supply to the toilet by locating the main shut off valve. Then, you can try tightening the packing nut on the shut off valve with a wrench to see if that stops the leak. If the leak persists, you may need to replace the shut off valve with a new one.
What to use to solder a shut off valve