New York Low Pressure Boiler COF Practice

What is the typical drain size connection in a low pressure boiler?

1. 1/2 inch

2. 3/4 inch

3. 1 inch

4. 2 inch

The correct answer is: 3/4 inch

The typical drain size connection in a low pressure boiler is commonly 3/4 inch. This size is widely used because it provides an adequate flow rate for draining water while maintaining compatibility with standard piping and fittings in boiler systems. A 3/4 inch connection strikes a balance between being large enough to handle the discharge of water efficiently and small enough to fit into most boiler designs without requiring additional modifications. This dimension helps prevent issues such as backflow or insufficient drainage, which can occur if the drain size is too small. It is also suitable for various applications in maintaining and servicing the boiler, ensuring that any accumulated water or condensate can be effectively managed.