Crispin Air Release, Air & Vacuum and Universal Combination Valves meet or exceed ANSI/AWWA C512 Standards.
abbreviations used for product Compliance
Crispin’s original Air & Vacuum Valves, the A and AL Series are designed to exhaust large quantities of air when filling pipelines, and to allow air to re-enter pipelines when draining to prevent collapse due to vacuum formation.
These valves regulate air flow in pipelines to prevent collapse due to vacuum formation.
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