Question 1

Can GI be used for hot water?

Accepted Answer

Only if the project specification and consultant allow it for the temperatures and pressures involved.

Question 2

Why do threads leak after transport?

Accepted Answer

Damage, poor cutting, or foreign debris — inspect and re-cut/re-thread as per method statements.

Question 3

Do I need dielectric unions?

Accepted Answer

When connecting to copper or other metals, ask the MEP designer about galvanic isolation details.