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Industrial Solid Front Pressure Gauges with Blow-Out Back

Brand: Palmer Wahl Instruments, Inc
Designed to provide the maximum safety for personnel monitoring the gauges in the event of gauge failure, and to resist the most severe operating conditions created by the ambient environment and process medium.

These gauges are constructed with a solid barrier between the sensing element and the dial front, welded to the socket to give them exceptional strength.

In addition to protecting the user from fluid and particles in the event of failure, the backs of these cases are designed to blow out to release pressure inside the case.

Filled gauges reduce pointer fluctuation, reduce wear of rotating parts of the movement when vibrations and pulsations occur, and prevent condensation and corrosion which could damage the internal parts.
Features
  • Blow-Out Back Designed To Release Pressure Inside The Case.
  • Accurate
  • Tough
  • Adjustable
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Designed to provide the maximum safety for personnel monitoring the gauges in the event of gauge failure, and to resist the most severe operating conditions created by the ambient environment and process medium.

These gauges are constructed with a solid barrier between the sensing element and the dial front, welded to the socket to give them exceptional strength.

In addition to protecting the user from fluid and particles in the event of failure, the backs of these cases are designed to blow out to release pressure inside the case.

Filled gauges reduce pointer fluctuation, reduce wear of rotating parts of the movement when vibrations and pulsations occur, and prevent condensation and corrosion which could damage the internal parts.
Features
  • Blow-Out Back Designed To Release Pressure Inside The Case.
  • Accurate
  • Tough
  • Adjustable

Specifications

Case and Blow-Out Back

  • Phenolic, Fiberglass Reinforced in 4-1/2” (125 mm) diameter

Fill

  • Dry or Glycerin Filled. Silicone Fill Optional.

Ring

  • Polycarbonate

Socket

  • AISI 316 Stainless Steel, TIG welded to the elastic element using 316 Stainless Steel

Connection

  • 1/2” NPT threads, SS Restrictor Optional. Ranges ranges Stainless Steel 30,000# and above require Autoclave fitting

Bourdon Tube

  • AISI 316 Stainless Steel. C-tube configuration for ranges below 1000 psi. Spiral tube configuration for higher ranges

Movement

  • Stainless Steel

Pointer

  • Black Aluminum, micrometer adjustable

Dial

  • White Aluminum with black markings in accordance with ASME B40.1 -2005

Accuracy

  • ± 1.0 %: Wet, ± 0.5 %: Dry
  • ± 1.6 % for 50,000# and 60,000# Ranges

Range Availability

  • psi, Metric, and Dual Scales.

Process Temperature Limits

  • -25° to +80° C / -13° TO 176° F

Ambient Temperature

  • Dry: -40° to 185° F (-40° to 85° C)
  • Glycerin Filled: 60° to 150° F (15° to 65° C)
  • Silicone Filled: -50° to 150° F (-45° to 65° C)

Silicone Filled: -50° to 150° F (-45° to 65° C)

  • Silicone Filled: -50° to 150° F (-45° to 65° C)

Overpressure Limits

  • 30 % for ranges up to 870 psi (60 bar, as a percent of full scale value)
  • 25 % for ranges from 870 to 1400 psi (100 bar, as a percent of full scale value)
  • 15 % for ranges above 1400 psi (100 bar, as a percent of full scale value). (Over pressures up to 130 % of these values will not damage the movement).

Documentation