DFG-153 Dual Flange Gaskets2017-06-27T03:14:14+00:00

Project Description


Excellent Resistance.

  • Pure exfoliated graphite flake material excels in extreme conditions, withstanding heat & pressure.
  • Fire-safe.
  • Chemical resistant.
  • No ageing, unlimited shelf life.

Reliable Seal.

  • Seals easily under moderate bolt load, offers superior torque retention.
  • Retains dimensional stability in high temperature; seals tightly even during pressure fluctuations.
  • Perfect for pitted and scratched flanges.


  • Elastomer free means no premature failures at elevated temperatures.
  • Ideal for hydrostatic testing.
  • No sharp edges.

Inventory Management.

  • One gasket for both 150# and 300# flanges.
  • Only 18 SKU’s to manage from 1/2” to 24” (Reduced from 36).
Min. Temperature -400°F
Max. Temperature +850°F (+454°C)
(in atmosphere)
+1200°F (+650°C)
(in steam)
Max. Pressure 2000 psig (137 bar)
pH 0-14
PXT (Max) 175,000 (6,000)
M Factor 2 (Smooth Flange Surface)
Y Stress 900 psi (6 MPa)
(Smooth Flange Surface)
Max. Gasket Load 24,000 psi (165 MPa)


Available with dove-tailed tabs for gasket alignment and visual indicator.


Material Composition & Application

High Performance .175” Thick – Penta Layered Graphite with 99.85% carbon content and 316SS Dual Flange Gaskets (Class 150/300). Multi-layer graphite with 316SS inserts provides high compressive strength, blow-out resistance, excellent handling properties and improved tightness. The unique geometry of this gasket offers multiple benefits for the user.


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