What is MIV valve?

Main inlet valve or MIV is a valve which is installed before water enters into spiral casing of the hydro turbine. Water from the dam goes to the penstock and before water enters the turbine, MIV is a equipment in between that stops the water for small maintenance purpose in the turbine hall.

What is spherical valve?

Spherical valves are used as safety and shut-off equipment for turbines and pumps in conditions under high operating pressure. They close automatically without outside energy; in emergency cases, even against unidirectional pressure at maximum flow rate.

What is inlet outlet valve of engine?

Overhead camshaft The valve which allows mixture into the cylinder is the inlet valve; the one through which the spent gases escape is the exhaust valve. They are designed to open and close at precise moments, to allow the engine to run efficiently at all speeds.

What is the full form of MIV?

■ Abbreviation / Long Form : MIV / moisture, impurity and volatile matter.

What is penstock in hydro power plant?

A penstock is a group of pipes that transport pressurised water from a reservoir (dam) to the turbines installed in a hydro-electric power plant.

What is difference between ball valve and globe valve?

The main difference between ball and globe valves is the way they close. Ball valves have a stem and ball, which turns horizontally, and are commonly referred to as “rotational” valves. Whereas, globe valves have a stem and plug, which strokes linearly, and gives them their other name of “stroke” valves.

What is a 16 valve engine?

16 valves (16v) means 4 valves/cyl (two each for intake and exhaust). The 16v engine is better in terms of performance as it has an easier time taking in air and pushing out exhaust (i.e, breathing). Now, from a maintenance point of view, 16v is somewhat more prone to problems than 8v in that there is double the no.

What is the difference between inlet and exhaust valve?

The valve which allows mixture into the cylinder is the inlet valve; the one through which the spent gases escape is the exhaust valve.

What is oil MIV?

Abbreviation / Long Form : MIV / moisture, impurities and volatile matter.