Title: Identify the types of main shut-off valves.
Course: Building Trades II (17009-II) > Section: Plumbing: Roughing-in Water Distribution Components

Identification should include

- gate
- ball
- butterfly.

IRC: Chapters 26, 27, 28, and 29, (https://codes.iccsafe.org/content/IRC2018P4) cover plumbing code for types of shut-off valves, depending on the type of service, shut-off requirements, and placement, including access.

Process/Skill Questions:

- Where are main shut-off valves typically located in a house?
- What size is the main shut-off valve in a house?
- What types of materials are the main shut-off valve constructed?

NCCER Standards:

Plumbing: Level 1

- 02113-05 Introduction to Water Distribution Systems