Differential Pressure

Differential pressure gauges

Differential pressure gauges for local indication, filter monitoring, flow applications, room pressure monitoring, and demanding industrial process environments.

Products Differential Pressure Differential pressure gauges
Economical differential pressure gauge

Economical differential pressure gauge

  • Use: economical DP indication where media migration may be acceptable.
  • Accuracy: +/-2% ascending pressure full scale differential.
  • Range: 0-5 psid to 150 psid.
  • Static pressure: up to 6,000 psid.
  • Protection: IP65 with glass window.
  • Connections: 1/4 NPT female standard, with 1/8 NPT, 1/2 NPT, or adapter options.
  • Applications: filtration monitoring, strainer pressure drop, flow rate, and tank level indication.
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Stainless steel differential pressure gauge

Stainless steel differential pressure gauge

  • Use: precise DP monitoring for harsh process environments.
  • Accuracy: +/-1.6% of span standard, +/-0.5% upscale optional.
  • Range: 0-16 in. H2O to 600 psid.
  • Static pressure: 1,450 psi standard, with higher pressure options up to 5,801 psi.
  • Protection: IP65 dry case standard, IP66 hermetically sealed optional.
  • Materials: 316L stainless steel wetted parts with optional Inconel, Hastelloy, or Monel.
  • Options: external zero adjustment, flow dial, electric contacts, NACE compliance, and diaphragm seals.
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High static pressure differential gauge

High static pressure differential gauge

  • Use: high static pressure with low differential pressure monitoring.
  • Accuracy: 1.6%, with Monel version at 2.5%.
  • Range: 0-24 in. H2O to 600 psid.
  • Static pressure: 1,450 psi standard, with 3,625 psi and 5,800 psi options.
  • Protection: IP67 with safety glass window.
  • Materials: 316L stainless steel, Hastelloy-C, or Monel wetted materials.
  • Applications: refineries, power plants, chemical plants, wastewater, mining, marine, filter, level, and flow measurement.
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No migration differential pressure gauge

No-migration differential pressure gauge

  • Use: economical DP measurement where no media migration is permissible.
  • Accuracy: +/-2% ascending pressure full scale differential.
  • Range: 0-1 psid to 60 psid, including inches of water ranges.
  • Static pressure: 1,500 psi.
  • Protection: IP65 with glass window.
  • Design: convoluted diaphragm for compatible fluids or gases.
  • Applications: liquid level measurement, filtration monitoring, flow measurement, and leak detection.
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High differential pressure gauge

High differential pressure gauge

  • Use: high differential pressure measurement for non-corrosive media.
  • Accuracy: +/-2-1-2% of span, ASME B40.100 Grade 1A.
  • Range: 10 to 1000 psid, with compound range options up to 500/0/500 psid.
  • Temperature: maximum process temperature 250°F / 121°C.
  • Materials: brass or bronze wetted parts with rugged aluminum case.
  • Options: electric contacts and diaphragm seal configurations.
  • Applications: water, air, hydraulics, refineries, wastewater, mining, filter, level, and flow measurement.
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Stainless wetted differential gauge

Stainless wetted differential gauge

  • Use: high DP measurement where stainless steel wetted materials are required.
  • Accuracy: +/-2-1-2% of span, ASME B40.100 Grade 1A.
  • Range: 10/0/10 to 400/0/400 psid.
  • Temperature: maximum process temperature 250°F / 121°C.
  • Materials: stainless steel wetted parts with aluminum case.
  • Connections: 1/4 NPT, 1/2 NPT, G 1/4 B, G 1/2 B, and M20x1.5 male options.
  • Applications: refineries, chemical plants, wastewater, mining, filter, level, and flow measurement.
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Low range no migration differential gauge

Low-range no-migration differential gauge

  • Use: very small DP measurement where no media migration is permissible.
  • Accuracy: +/-2% ascending pressure full scale differential.
  • Range: 0-1 in. H2O to 25 in. H2O.
  • Static pressure: 500 psid.
  • Protection: IP65 with glass window.
  • Design: convoluted diaphragm for compatible fluids or gases.
  • Applications: liquid level measurement, collector or bag filter monitoring, filtration monitoring, and flow measurement.
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Cleanroom differential pressure gauge

Cleanroom differential pressure gauge

  • Use: low DP monitoring for clean room, isolation room, and glove box applications.
  • Accuracy: +/-3% ascending pressure full scale differential.
  • Range: 0-0.6 in. H2O to 60 in. H2O.
  • Static pressure: 35 psid.
  • Protection: IP65 with glass window.
  • Connections: 1/8 NPT female with dual back and in-line process ports.
  • Applications: filtration monitoring, flow measurement, blower performance, bag filter monitoring, and clean room positive pressure.
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Heavy-duty differential pressure gauge

Heavy-duty differential pressure gauge

  • Use: heavy-duty low DP monitoring for harsh process environments.
  • Accuracy: Class 1.6 standard, Class 1 optional.
  • Range: 0-10 in. H2O to 400 psid.
  • Protection: IP66 standard, IP65 with electric contacts.
  • Materials: 316L stainless steel case and wetted parts.
  • Options: external zero adjustment, flow measurement dial, and electric contacts.
  • Applications: oil and gas, chemical plants, wastewater, mining, power generation, and tank level monitoring.
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