What is a self contained control valve?

Self-contained or self-operated temperature control valves do not require an outside energy source such as compressed air or electricity (Figure 26). In a direct-actuated design, the control directly moves the valve stem and plug to close or open the valve.

How does a self-acting temperature control valve work?

The working priciple of self-acting temperature control valve is: If medium temperature rising up, the temperature-sensitive fluid in the sensor is heated and will expand capillary to close the valve. If medium cooled, the temperature-sensitive fluid in the sensor is contacted then makes the valve open.

What is meant by a self-acting controller?

Self-acting temperature controller will operate in all conditions – without external controls or energy supply, resulting in continous operation instead of disasterous breakdown.

How does a 3 way control valve work?

A 3-way control valve shuts off water flow in one pipe while opening water flow in another pipe. In a modulating or 3-point floating application the valve can also mix water from two different pipes into one pipe or divert water from one pipe into two different pipes.

What are the 3 most common control valve flow characteristics?

There are three most common control valve characteristics viz Linear, Equal % and Quick-Opening.

What are the different types of control valve?

List of common types of control valve

Sliding stem. Globe valve – Flow control device. Angle body valve. Angle seat piston valve. Axial Flow valve.
Rotary. Butterfly valve – Flow control device. Ball valve – Flow control device.
Pinch valve. Diaphragm valve – Flow control device.

What is a diverting valve?

A shower diverter, also known as a diverter valve, is a valve that diverts the flow of water from the bathtub faucet to the shower head. Thus, a diverter valve allows you to have a shower and a bathtub in the same space.