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Pressure gauges
A pressure gauge is a measurement of an applied force on the surface by a fluid. The pressure is measured in units of force per unit of the area’s surface. Various techniques are developed for the measurement of vacuum and pressure. The pressure gauge is an instrument used for measuring the fluid’s condition (gas or liquid) that is specified by the force, a fluid would exert, on a unit area, when at rest, such as newtons per square centimeter or pounds per square inch.
Check valves
A check valve is known for its different terms:
- Non-return valve
- Reflux valve
- Retention valve
- Foot valve
- One-way valve
The valve normally allows fluid to flow in one direction. The check valves are 2-port valves, meaning:
- two openings in the body
- one for fluid to enter
- other for fluid to leave
A check valve is generally installed in pipelines to stop backflow. It is basically a one-way valve, in which the flow runs freely one way. But, if the flow turns, the valve closes to protect the piping, pumps, other valves, etc.
Ball valves
A ball valve is a flow control tool or device using a hollow, pivoting, and perforated ball to control the fluid flowing through. It is open when the hole of the ball is in line with the flow inlet and closed when pivoted 90 degrees by the valve handle that blocks the flow.
The ball valve is used as a shut-off valve, which allows, controls, and obstructs the flow of the liquids, vapors, and gasses in a piping system by rotating the ball with a bore inside the valve. The ball is mounted in two seats and a shaft that connects to the control and opening mechanism that rotates the ball.
Solenoid valves
The solenoid valve is an electromechanically operated valve. It differs in the characteristics of the used electric current, the mechanism used to regulate fluid, the strength of the magnetic field generated, and the characteristics and type of fluid they control. Solenoid valves are the control units, when de-energized or electrically energized, either shut off or allow fluid flow.
The actuator will take the form of an electromagnet. When it is energized, a magnetic field builds up, pulling a pivoted armature or plunger against the action of a spring. The solenoid valves are used in:
- fluid power pneumatic
- hydraulic systems
- control cylinders
- fluid power motors
- larger industrial valves
Automatic irrigation will sprinkle the systems, and also utilize solenoid valves with an automatic controller.
All these valves are very useful instruments. So, if you use these instruments, you must see to it that you have the knowledge and skills upon installation. Otherwise, everything gets ruined and you can’t get the right usage of these instruments.