Pressure Actuated Fills (PAF) Manholes Part Numbering Code
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
WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov. For additional information on Betts products and Proposition 65 list please see: https://www.bettsind.com/prop-65/