Valves stored outside in freezing climates should be ________ and have their disks in a ________ position.

• A. Open, Horizontal
• B. Closed, Vertical
• C. Open, Vertical
• D. Closed, Horizontal

Answer: (B)

Protecting valves from freezing hinges on keeping water out of the valve cavity and allowing any remaining water to drain away. When a valve is kept closed, no new water can enter the valve interior from the line, reducing the risk of pressure build-up or water freezing inside. Placing the disk in a vertical position aids drainage because gravity helps any residual water collect at the lowest point and drain away rather than pooling on the sealing surfaces. If the valve were open, water could flow through or remain inside, increasing the chance of freezing damage. If the disk were horizontal, water might pool on the seating surface, also increasing frost risk. Keeping the valve closed with the disk positioned vertically specifically minimizes trapped water and protects the valve in freezing climates.