Stud Mount Style
Lower Ring Style
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REOTEMP’s Flanged Offline Welded Diaphragm Seals are designed with an upper and lower housing, bolted together with a diaphragm welded to the upper housing. This removable design allows for easy cleanout of the seal chamber, while maintaining the system fill. The flanged offline diaphragm seal can be adapted to fit almost any pressure instrument and process application.

  • Welded Diaphragm for Maximum Durability
  • Wide Variety of Diaphragm and Material Options
  • Continuous-duty Disc Protects from Process Fluid Leaking in the Event of a System Breach
  • Easy Cleanout of Diaphragm Cavity without Compromising Filled System

Construction Materials

Upper Housing (Non-wetted): 316SS, Nickel-plated Steel, 304SS
Diaphragm (Wetted): 316SS, Hast C-276, Tantalum, Monel, others
Gasket (Wetted): PTFE, Grafoil, Klinger
Lower Housing (Wetted): 316SS, Hast C-276, Monel, CPVC, others

Process Temperature Limits

Ambient Temperature Limits

Determined by the Pressure Instrument

Minimum Recommended Pressure Ranges


Maximum Working Pressure

Determined by flange.

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