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1742 Orbit Way
Minden, NV, 89423
United States

(775)782-1026

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Gauges on Welded Diaphragm Seals

OFFERING THE PREMIER GAUGE / MINI-SEAL COMBO

ADVANTAGES

One Moving Part

Unmatched vibration, pulsation and shock performance.

Helical Bourdon Tube = Gearless, Direct Drive = DURABILITY

No linkages, springs, gears, or liquid fill to wear, break or leak. Unique, internal pointer dampening reduces pointer flutter without the negative consequences of liquid fill. Sanitary environment friendly.

Eliminate Leak Paths

Sleek, all-welded design customized to perform specifically with Perma-Cal® gauges and eliminate potential leak paths.

Price Advantage

Superior performance at a superior price

Perma-Cal® Gauge/ Mini-Seal vs. Traditional C-Tube Gauge/ Seal.

Maintains ACCURACY

Low-volume design requires a minimum of 85% less fill fluid vs. C-Tube competitors. Thus, accuracy is 50% less affected by temperatures above 68°F (20°C).

85% less volume = 50% more consistent accuracy

Inconel’s low coefficient of thermal expansion in combination with a low internal volume means that impact of temperature on accuracy is minimal vs. C-Tube competitors. High-Temp solutions available which bring operating temperatures up to 400°F Ambient / 650°F Media.

LIFETIME Limited Warranty

Lifetime warranty that the Bourdon tube will not malfunction due to wear.

1 year from delivery or 18 months from date of manufacture against defects in materials and workmanship.


Diaphragm Seal Gauge Specs

 

TYPICAL APPLICATIONS

Ideal for use on processes which are corrosive, viscous, unrefined or unfiltered.

Prevents media from clogging the Bourdon tube.

  • Chemical Plants

  • Wastewater Treatment Facilities

  • Sanitary Environments (food and beverage)

  • Crude Oil Pipelines

  • Ethanol Production Facilities

  • Refineries, and more...

ACCURACY

  • ±0.5% of F.S. (Grade 2A)

  • ±0.5% F.S. at M.S. / ±1.0% F.S.

Accuracy Ref. @ 68°F, ±2°F

Diaphragm seals installed on gauges below 100 psi may experience loss of accuracy at low pressures.

RANGE AVAILABILITY

  • Vacuum - 1,000 psi (or equivalent)

  • Units: psi, bar, kPa, kg/cm² (others available)

  • Types: Single or Dual Scale, Vacuum and Compound

Customization available (range, units, logo, etc.)

See dial availability chart for list of standard ranges

CASE CONFIGURATIONS

Material:

  • ABS (acrylonitrile butadiene styrene)

  • Aluminum

  • Stainless Steel

  • GFN (glass-filled nylon): High-Temp Yellow Turret

Sizes, Types and Colors:

  • 2.5", 3.5", 4.5" Dial

  • No Flange, Rear Flange, Turret

  • Black, Blue, Green, Red, White, Yellow (others available)

Metal Case Finish: Powder Coated or Unpainted

Solid Front Case Design

OTHER SPECIFICATIONS

Window Construction:

  • Acrylic

  • Tempered Glass (increases heat tolerance)

Dial Construction:

  • Stainless Steel Material, Powder Coated Finish

  • White Background, Black Markings, Black Pointer

See Ray Series for high visibility dial

Proof Pressure (over-pressure w/o calibration shift):

  • 150% of F.S. pressure

Internal pointer dampening (reduces pointer flutter)

DIAPHRAGM SEAL SPECS

Material (wetted parts):

  • Stainless Steel 316

  • Hastelloy C-276

Connection Type:

  • 1/4 or 1/2 FNPT

  • 1/4 or 1/2 MNPT

  • Bottom mount only

Burst Pressure: 10,000 psi

Max Working Pressure: 2,000 psi

Other options available. Contact the factory.

OPERATING TEMPERATURE

Media Temperature: -40°F to 650°F

Ambient Temperature:

  • ABS: -40°F to 190°F

  • GFN and Metal: -40°F to 400°F

Case, Diaphragm Seal, and Fill Fluid selection determines operating temperature range.

FILL FLUIDS

Standard Fill:

  • Silicone DC200 (or equivalent)

  • Operating Temp: -40°F to 400°F

Inert Fill:

  • Halocarbon 6.3 (similar to Fluorolube but suitable for vacuum service)

  • Operating Temp: -40°F to 400°F

High-Temp Fill:

  • Silicone DC704 (or equivalent)

  • Operating Temp: 0°F to 650°F

Max 200°F in vacuum service for all fills. Click here for more information on vacuum service.

Other options available. Contact the factory.