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Mercer Valve Company, Inc. ®

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Gas Fire Sizing / Thermal Expansion Information Sheet

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All formulas for calculations are at the bottom of this page, below the form.

Customer Information
  Customer Name
  Company
  Location
  Email
  Phone # () -
  Fax # () -
  Tag/PSV Numbers
  Quantity
Vessel Data
  Vessel Inside Diameter (D) in
  Vessel Length Seam to Seam (L)
(Not applicable for Spherical Tanks) 		ft
  Vessel Mounting Horizontal      Vertical      Sphere
  Types of Ends
(Not applicable for Spherical Tanks) 		Flat Head      Elliptical      Hemispherical
     
Operating Data
  Operating Pressure psig
  Operating Temperature °F
  Set Pressure psig
  Back Pressure psig
     
Fluid Data
  Gas Name
  Gas Constant
  Molecular Weight

Either use the required orifice area to choose the orifice size or use the required flowrate in a standard blocked flow calculation to find the correct valve.

Auto Seat Technology® is a registered trademark of Mercer Valve Co., Inc. ® 9609 NW 4th St. OKC, OK 73127. 1-405-495-6533