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These Tank Valves are designed to protect process tanks and piping systems from the dangers of vacuum or over-pressurisation.
Designed as lightweight, hygienic breather valves, the 645 Series ensures system integrity during operation by allowing controlled air movement into or out of the tank as required, maintaining a safe internal environment at all times.
A precision-calibrated spring, seat-seal assembly, and polymer bushing are enclosed within a robust stainless-steel housing, providing dependable, durable performance.
Common applications include:
| Feature | Specification |
|---|---|
| Sizes | DN25 – DN100 (1½” – 4″) |
| Sealing Materials | EPDM, FPM (FKM), VMQ (silicone) |
| Vacuum Break Pressure | 0.007 Bar |
| Opening Pressure (positive) | 0.07 Bar |
| Sterilisation Temperature | Up to 135°C |
| Housing Material | Stainless Steel |