IND-PTV - Butterfly Valves

The video tutorial explains the design and functionality of butterfly valves, highlighting their simple design and ease of maintenance. It covers the main components: body, disc, stem, and seat, and compares the lug and wafer body types. The tutorial also discusses the disc's role in flow control, different seat types for various pressures, and the features of high-performance valves. Additionally, it addresses stem design and material compatibility. The video concludes with an invitation for feedback.

What is one of the main advantages of butterfly valves compared to other valve types?

• They are more expensive.

• They have more working parts.

• They are more complex in design.

• They are easier to repair and maintain.

Which body type of butterfly valve allows for the removal of downstream piping?

• Disc

• Wafer

• Lug

• Ball

What is the primary function of the disc in a butterfly valve?

• To support the valve body

• To seal the valve

• To increase pressure

• To control flow

Which type of seat is used in butterfly valves for slightly higher pressure systems?

• Resilient seat

• Metal seat

• Plastic seat

• High-performance seat

In high-performance butterfly valves, why must the stem material be compatible with the process?

• To reduce cost

• To ensure it is strong enough to operate the valve

• To improve the appearance

• To make the valve lighter