Series 62 freeze protection valves: installation and inspection
Recommendations for installing PT Series 62 Freeze Protection Valves and checking them before each freezing season.
Installation notes
- Install the Series 62 in a safe drainage area unaffected by any heat source (a steam tracer line, hot condensate sewer opening, etc.).
- If stainless or copper tube is used to bring the valve to a safe location, use 1⁄2" tubing or larger.
- Install the valve vertically downward with a “Y” strainer, with blow-down in front of the valve for dirt and particle retention.
- Do not install a tail line on the outlet of the valve.
Inspection instructions
Perform this inspection 2–4 weeks before cold, freezing weather begins for the season. It clears particles and dirt from the pipeline and confirms the Series 62 is working properly.
- Remove the Series 62 from the line and immerse the valve in a large bucket of water with plenty of ice for 10 minutes. The water temperature should be between 32 °F and 35 °F.
- Lift the valve from the bucket: water should flow steadily from the valve's bottom outlet. If not, repeat step 1.
- Place the valve inlet under a running water faucet. The Series 62 should close tight in about 1–2 minutes.
- If the valve fails to open in step 2 or fails to close in step 3, replace it with a new valve.
- If the inspection is successful, blow down the “Y” strainer until the water runs clear, and reinstall the valve in the pipeline.
For questions about these recommendations or any other installation or inspection concerns, contact Process Technology at (215) 628-2222.