Series 62
Freeze Protection Valves
Prevents pipes from bursting by automatically draining water as it approaches freezing. Install at dead legs or low points of fire hydrants, safety showers, eye washes and other water systems.
- Opens fully
- 35 °F (2 °C)
- Closes
- 45 °F (7 °C)
- Max pressure
- 200 psi (14 bar)
- Sizes
- 3⁄8" – 3⁄4" NPT

Applications
Freeze protection of fire hydrants, safety showers, eye showers, water tanks or any water system. Prevents pipes from bursting. Install at dead legs or low points of water systems.
Operating principle
A wax-filled thermostat senses the water temperature at the valve inlet and controls the opening and closing of the valve. The valve opens fully when the water temperature drops to 35 °F (2 °C) and closes again when the water temperature rises to 45 °F (7 °C).
Design features
- All stainless steel valve
- Fail-open
- Modulating water discharge
- Self-draining and freeze-proof
- Long service life
- Compact and light weight; easy installation
- Insensitive to pressure variation
Capacities and seat orifices
Parts and materials

| Item | Part | Material |
|---|---|---|
| 1 | Inlet fitting | Stainless steel |
| 2 | Body housing | Stainless steel |
| 3 | Name plate | Aluminum |
| 4 | Return spring | Stainless steel |
| 5 | Guide ring | Stainless steel |
| 6 | Body plate | Stainless steel |
| 7 | Outlet fitting | Stainless steel |
| 8 | Valve | EPDM |
| 9 | Spring | Stainless steel |
| 10 | Valve guide | Stainless steel |
| 11 | Thermostat | Brass |
| 12 | Adjustment screw | Stainless steel |
| 13 | Lock nut | Stainless steel |
| 14 | Mounting plate | Stainless steel |
Dimensions and weights
| End connectionin (DN) | “D” Øin (mm) | “L”in (mm) | Weightlb (kg) |
|---|---|---|---|
| 3⁄8 (10) | 1 13⁄16 (46) | 3 5⁄8 (92) | 0.48 (0.22) |
| 1⁄2 (15) | 1 13⁄16 (46) | 3 15⁄16 (100) | 0.56 (0.25) |
| 3⁄4 (20) | 1 13⁄16 (46) | 3 15⁄16 (100) | 0.66 (0.30) |
Installation
See the full installation and inspection recommendations, including the pre-winter inspection procedure.