Models M932.D1, M933.D1

All-welded system

Assembled diaphragm seal, with threaded connection

Selected documents
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  • Process industry diaphragm gauge for use in corrosive contaminated or viscous media.
  • Unit does not allow any excess to the system fill, gauge is permanently welded to the seal body.

Special Features

  • Dual containment
  • Tamperproof, all welded design
  • Drop-in gauge replacement
  • Special features available
  • Order details engraved

Standard Features

All-welded design

Pressure Rating, Maximum
1,500 psi and 5,000 psi

Vacuum, compound and positive pressure up to 5000 psi (See datasheet for detail)

Operating Temperature
0 to 300°F (-18°C to 149°C)

Ambient Temperature
-40°F to 140°F (-40°C to 60°C)

Gauge Features

Dial Size
4½" process gauge

Process Connection
¼" NPT & ½" NPT male or female

Process Wetted Materials
316L stainless steel

Case Material
Fiberglass reinforced thermoplastic (Pocan®)

Case Fill
Glycerin (optional)


White aluminum with black lettering

Black aluminum

±0.5% of span

Temperature effect
Process and ambient change, see datasheet

System Fill Fluid
Silicone oil, KN68 - DC200-10cSt.

Engraved on upper seal housing

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