14040 Series Welded Diaphragm Seal

Brand: Marsh Bellofram Group of Companies

The Model 14040 Welded Diaphragm Seal is a welded diaphragm-to-upper design allowing the upper housing to be removed with the instrument in place without losing fill.

Available in threaded connections for pressures from vacuum to 2,500 psi. 

Fill/bleed port screw in the upper is standard and an optional flush connection is available.

Features

  • Full Size for Large Displacement Instruments
  • Available in a Wide Variety of Materials and Configurations
  • Diaphragm Welded to Upper Housing

Specifications

Upper Housing Material

  • Carbon Steel
  • 316 Stainless Steel

Lower Housing Material

  • Carbon Steel
  • 316 Stainless Steel
  • Hastelloy C
  • Tantalum

Diaphragm Material

  • 316 Stainless Steel
  • Hastelloy C
  • Tantalum

Pressure Rating

  • Vacuum to 2,500 psi

Fill Liquid

  • Glycerine
  • Silicone
  • Syltherm

Instrument Connection

  • 1/4"NPT, 1/2" NPT

Process Connection

  • 1/4" NPT, 1/2" NPT, 3/4" NPT, 1" NPT

Flush Connection

  • Standard - None
  • 1/4" NPT

Bolts and Nuts

  • Carbon Steel
  • Stainless Steel

  • Chemical/Petrochemical
  • Refinery
  • Viscous Media
  • Clogging
  • Corrosive Media
  • High Temperature
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