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Pressure Actuated Fills (PAF) Manholes – Cover Page & Part # Code
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Betts offers an extensive line of Pressure Actuated Fills and Manholes to meet a wide variety of venting applications.  The Pressure Actuated Fill (PAF) satisfies the requirements of the primary pressure relief system for a cargo tank and can either be a standalone 10” fill style or an integral part of a 16” or 20” clamp ring style manhole cover.

A representative part numbering system is used for the PAF line.  Each letter or digit in the part number is indicative of a feature or option as shown in the chart.  If an option is not covered by the standard numbering system, a three-digit suffix will apply.  All options and part number combinations may not be listed, available or even possible.  See individual product catalog pages or contact a Betts representative for assistance.

Prop 65 Chromium

Prop 65 Chromium

For additional information on Betts products and Proposition 65 list please see: https://www.bettsind.com/proposition-65/