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EMERGENCY PRESSURE / VACUUM MANHOLE COVER VENT

EMERGENCY PRESSURE / VACUUM VENT

Series No. 52600

Protectoseal Series No. 52600 provides both emergency pressure relief and vacuum relief when installed on the manhole opening of a storage tank. In emergency situations (external fire involvement of the tank), normal venting devices may be too small to prevent overpressurization of the tank. The Series No. 52600 provides the necessary pressure relief capacity to maintain the tank in a safe operating range. The integral vacuum vent provides additional protection against tank collapse due to excessive vacuum in the vapor space.

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