Automatic Roof Draining Valve (Model: TOR)

The TOR model is a normally open, specific-gravity sensitive valve, which closes upon
sensing a hydrocarbon product. It is commonly used as a safety requirement for the
draining of rainwater from floating roofs of hydrocarbon product storage tanks and oil
water separator systems as a safety shutoff valve, In the event of storage product
ingress into the drain tubing or roof or the OWS water outlet, the TOR Valve will sense the
presence of the product and will immediately close, preventing product loss, pollution and
spillage.

When the TOR closes, the factory fitted magnetic proximity switch immediately sends a
feedback signal to a remote position monitoring system, alerting the relevant authority
and enabling speedy corrective action. The TOR is designed to require minimum
maintenance, and to last the lifetime of the tank.