answersLogoWhite

0

Still curious? Ask our experts.

Chat with our AI personalities

EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor

Add your answer:

Earn +20 pts
Q: Why use a pilot operated relief valve?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Engineering

What the function of motor operated valve actuator?

The main function of a valve actuator is to control the valves ON to Close or modulating the valve,and the motor operated valve actuator is one important kind of valve actuator,the main different between kind valve actuators is it drive by electric power.


What is a pneumatic solenoid operated spool valve?

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.


How a deluge valve works?

Deluge valves are hydraulically operated differential type valves used to control water supply to a deluge system. Deluge systems use open sprinklers or nozzles. Trim sets are used to control the operation of the valve.


What are the advantages of motor operated valves over pneumatic valves?

Good question Usually motor operated valve used in big pipe lines sizes which it is need strong torque and for ON/OFF condition not to control the process, We can use rather than M.O.V pneumatic ON/OFF valve with piston actuator (Double Acting) but in this case the accessories it will cost you more because you need to provide pneumatic amplifier and big actuator depend on the pipe size. That is why better to use M.O.V the motor will rotate the gears and the gears will rotate the valve with low cost. Contact me for more clarification if there is.


What is the use of valve spring?

Valve springs keep valves firmly seated in the socket.