Compressed Non-Asbestos Fiber Sheets are rolled and vulcanized sheet type gasket materials, in which special rubber binders and a small amount of filler material are mixed with organic and inorganic fibers.

Since black components are removed in the Compressed Fiber Sheet, these gaskets are suitable to be used for applications where inclusion of black foreign substances into the fluid should be avoided.

Description

Design Data

• Recommended tightening stress
  Tightening stress is defined as the pressure required under standard conditions without consideration to the opening force due to internal fluid.

   

  Fluid	Recommended tightening stress (MPa)
  Liquid	25.5
  Gas	40.0

• Available ranges
  Temperature and pressure classifications show individual service limits.

   

  VALQUA GASKET No.	Temperature (°C)	Pressure (MPa)
  		Water based	Oil based(2)	Gas
  6500 / 6500AC	-50～183	3.0	3.0	1.0
  6502 / 6503 / 6503AC	-50～214	3.0	3.0	1.0

  Notes:
  (1) For service conditions exceeding 100°C, please consult us.
  (2) Regarding oil gas, solvent and corrosive fluid, separate consultation is required.
  

• m,y values
  The m, y values for Compressed Fiber Sheets defined in Appendix G of JIS B 8265 can be applied to the m, y values of High Performance Non-Asbestos Sheets.

   

  Thickness (mm)	Gasket factor “m”	Minimum design seating stress “y”(N/mm2)
  3.0	2.00	11.0
  1.5	2.75	25.5
  1.0	3.50	44.8