The main part of the ball valve is ball which has a hole in middle. When that ball rotate 90 degree it close or open. They are useful for applications which have to be rapid.
Advantages;
Minimal loss of pressure
Easy to opening and closing
Good leak tightness
Compact design

TGV-20 occurs from 3 parts. Because of their configuration they provide minimal loss of pressure
Actuators can assembly easily.

Material Structure:
Body: GG25 cast iron
Ball: AISI 316 stainless steel

Connection:
Flanged

Nominal Diameter:
DN40 (1 1/2”) - DN200 (8”)

Working Pressure:
Up to 16 bars

Working Temperature:
-10 to 120ºC

Typical Applications:
Heating air-conditioning systems
Food industry Chemical industry
Shipbuilding
Paper mills