Ashcroft Type 300 Series Diaphragm Seals Clamped

Type 300 Clamped

  • Broad selection of materials for meeting various service applications, including Teflon, Viton and Kalrez diaphragms.
  • Elastomeric diaphragm is clamped securely between the top and bottom housings by clamp rings, assuring positive seal.
  • Top housing is contoured to match diaphragm, minimizing distortion of the diaphragm should the pressure instrument be removed.
  • Continuous duty.
  • Fill/bleed connection is standard.
  • Top housing and diaphragm are nonremovable.
  • Teflon, Viton and Kalrez diaphragms available in threaded and flanged inlet connection

Model Index for Diaphragm Seals

Type 300

300-301 Threaded Diaphragm Seals

Bonded Viton, Kalrez and Teflon

The diaphragm is bonded permanently to the top housing and is the removable type

Type 301

300-301 Threaded Diaphragm Seals

Threaded with Flushing Connection

The diaphragm seal connects directly to the process by means of a female NPT thread

Type 302

302-303 Flanged Diaphragm Seals

Raised Face Flanged

The diaphragm seal is attached to the process by means of a flange as specified in ASME B16.5

Type 303

302-303 Flanged Diaphragm Seals

Raised Face Flanges

The diaphragm seal is attached to the process by means of a flange as specified in ASME B16.5