When installing more than one riser to the hot water supply main, the most typically used connection type is the

When installing more than one riser to the hot water supply main, the most typically used connection type is the

• A. 90-degree
• B. 60-degree
• C. 45-degree
• D. 30-degree

Answer: (C)

A smooth transition is key when branching from a hot water main to feed multiple vertical risers. A 45-degree connection provides that gentlest change in direction from the horizontal main to the vertical runs, which reduces flow disturbance and friction losses. This smoother path helps prevent water hammer and makes it easier to space and align several risers in a compact area. A sharp 90-degree bend would create more turbulence and pressure drop, and the other angles are less standard for this tapping arrangement and don’t offer the same balance between space and flow.

A smooth transition is key when branching from a hot water main to feed multiple vertical risers. A 45-degree connection provides that gentlest change in direction from the horizontal main to the vertical runs, which reduces flow disturbance and friction losses. This smoother path helps prevent water hammer and makes it easier to space and align several risers in a compact area. A sharp 90-degree bend would create more turbulence and pressure drop, and the other angles are less standard for this tapping arrangement and don’t offer the same balance between space and flow.