Pressure Measurement

 
Ashcroft 2089 Process Pressure Gauges - Type (Pressure): Absolute, Style (Press Gauge): Digital Indicating, Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.05% F.S. (Grade 5A) Precision Test
  • Type (Pressure): Absolute, Compound (Vacuum to Gauge), Gauge, Vacuum
  • Style (Press Gauge): Digital Indicating
  • Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.05% F.S. (Grade 5A) Precision Test
  • Units of Measure (Gauges): bar, cmH2O, inH2O, inHg, kg/cm2, kPa, mbar, mmH2O, mmHg, MPa, psi
  • Gauge Case Size: 3" (76 mm)
  • Gauge Case Material: Stainless Steel
From: $1,126.40 - $1,552.97
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Ashcroft 2174 Pressure Gauges - Configure Model
  • Type (Pressure): Gauge, Vacuum
  • Style (Press Gauge): Digital Indicating
  • Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.25% F.S. (Grade 3A) Test / Process / Industrial
  • Units of Measure (Gauges): bar, ftH2O, inH2O, inHg, kg/cm2, kPa, mbar, mmHg, MPa, psi
  • Gauge Case Size: 3" (76 mm), 4.5" (114 mm)
  • Process Connection: NPT (National Pipe Thread), VCR / VCO (Vacuum)
From: $465.66 - $2,006.17
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Ashcroft 2274 Pressure Gauges - Configure Model
  • Type (Pressure): Gauge, Vacuum
  • Style (Press Gauge): Digital Indicating
  • Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.25% F.S. (Grade 3A) Test / Process / Industrial
  • Units of Measure (Gauges): bar, ftH2O, inH2O, inHg, kg/cm2, kPa, mbar, mmHg, MPa, psi
  • Gauge Case Size: 3" (76 mm), 4.5" (114 mm)
  • Gauge Case Material: Aluminum, Stainless Steel
From: $465.66 - $2,297.12
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Ashcroft 30-1084 Process Pressure Gauges - Configure Model
  • Type (Pressure): Compound (Vacuum to Gauge), Gauge, Vacuum
  • Style (Press Gauge): Analog Dial
  • Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.5% F.S. (Grade 2A) Process / Industrial
  • Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.5% F.S. (Grade 2A) Process
  • Units of Measure (Gauges): inHg, kg/cm2, kPa, psi
  • Sensing Element (Analog Gauges): Bourdon Tube
From: $181.54 - $588.07
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Ashcroft 45-1082 Process Pressure Gauges - Type (Pressure): Compound (Vacuum to Gauge), Style (Press Gauge): Analog Dial, Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.25% F.S. (Grade 3A) Test
  • Type (Pressure): Compound (Vacuum to Gauge), Gauge, Vacuum
  • Style (Press Gauge): Analog Dial
  • Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.25% F.S. (Grade 3A) Test
  • Units of Measure (Gauges): inHg, kg/cm2, kPa, psi
  • Sensing Element (Analog Gauges): Bourdon Tube
  • Gauge Case Size: 4.5" (114 mm)
From: $299.92 - $1,762.21
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Ashcroft 60-1082 Process Pressure Gauges - Type (Pressure): Compound (Vacuum to Gauge), Style (Press Gauge): Analog Dial, Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.25% F.S. (Grade 3A) Test / Process / Industrial
  • Type (Pressure): Compound (Vacuum to Gauge), Gauge, Vacuum
  • Style (Press Gauge): Analog Dial
  • Accuracy (Digital-ASME B40.100 / B40.7 Grades): 0.25% F.S. (Grade 3A) Test / Process / Industrial
  • Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.25% F.S. (Grade 3A) Test
  • Units of Measure (Gauges): inHg, kg/cm2, kPa, psi
  • Sensing Element (Analog Gauges): Bourdon Tube
From: $358.56 - $1,756.31
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Ashcroft 85-1082 Process Pressure Gauges - Configure Model Type (Pressure): Compound (Vacuum to Gauge), Style (Press Gauge): Analog Dial, Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.25% F.S. (Grade 3A) Test
  • Type (Pressure): Compound (Vacuum to Gauge), Gauge, Vacuum
  • Style (Press Gauge): Analog Dial
  • Accuracy (Analog Dial-ASME B40.100/B40.1 Grades): 0.25% F.S. (Grade 3A) Test
  • Units of Measure (Gauges): inHg, kg/cm2, kPa, psi
  • Sensing Element (Analog Gauges): Bourdon Tube
  • Gauge Case Size: 8.5" (216 mm)
From: $696.81 - $1,963.18
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Ashcroft A2 Industrial Pressure Transducer, Configure Model
  • Type (Pressure): Absolute, Compound (Vacuum to Gauge), Gauge
  • Display (Xmitters): No
  • Maximum Pressure: 10000 psi
  • Enclosure Type (Press Xmitter): Compact (cigar type)
  • Process Connection: BSP (British Pipe Thread), NPT (National Pipe Thread), Sanitary (food / pharma), VCR / VCO (Vacuum)
  • Electrical Connection (Press Xmitter): Amphenol/Bendix/DIN/Hirschman, Conduit, Flying Leads / Pigtail
From: $408.16 - $997.90
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A2X Explosionproof / Flame Proof Presssure Transmitter, Configure Model
  • Type (Pressure): Absolute, Compound (Vacuum to Gauge), Gauge
  • Display (Xmitters): No
  • Maximum Pressure: 10000 psi
  • Enclosure Type (Press Xmitter): Compact (cigar type), Hazardous Area
  • Process Connection: BSP (British Pipe Thread), NPT (National Pipe Thread), Sanitary (food / pharma), VCR / VCO (Vacuum)
  • Electrical Connection (Press Xmitter): Conduit, Flying Leads / Pigtail
From: $554.89 - $1,001.59
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A4 Intrinsically Safe / Non-Incendive Pressure Transmitter, Configure Model
  • Type (Pressure): Absolute, Compound (Vacuum to Gauge), Gauge
  • Display (Xmitters): No
  • Maximum Pressure: 10000 psi
  • Enclosure Type (Press Xmitter): Compact (cigar type), Hazardous Area
  • Process Connection: BSP (British Pipe Thread), NPT (National Pipe Thread), Sanitary (food / pharma), VCR / VCO (Vacuum)
  • Electrical Connection (Press Xmitter): Amphenol/Bendix/DIN/Hirschman, Conduit, Flying Leads / Pigtail
From: $450.58 - $1,006.46
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Ashcroft AXLdp Low Differential Pressure Transducer, board mountable, configure model
  • Type (Pressure): Differential
  • Display (Xmitters): No
  • Maximum Pressure: 20 psi
  • Output Types (Xmitter): DC Voltage
  • Wetted Part Material: Aluminum, Glass, Titanium
  • Warranty: 3 YEARS
From: $78.90 - $231.06
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Ashcroft B(D) - Series Differential Pressure Switches
  • Type (Pressure): Differential
  • # of Switches: 1
  • Output Types (Press / Temp Switches): Micro Switch
  • Enclosure Type (Press Switch): Hazardous Area Approval, Weatherproof
  • Enclosure Material (Press / Temp Switches): Aluminum, Stainless Steel
  • Safety Approval (Press / Temp Switches): CSA, UL
From: $379.99 - $1,933.19
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Pressure Measurement

Industrial Pressure Measurement instruments come in many technologies and styles to suit the wide variety of needs for measuring pressure. Also important is related equipment to protect and service pressure measurement instruments.

Here are some broad categories of industrial Pressure Measurement instruments and related equipment. Selecting a Pressure Measurement instrument begins by deciding on a type.
  • Pressure Gauges are analog or digital gauges indicating absolute, gauge, or differential pressure of a fluid. Pressure gauges are ideal for a local display. Digital models can be battery powered. Some models may have programmable alarm switches
  • Pressure Controllers/Regulators will control flow based on set pressure. Controllers provide PID control and Regulators use mechanical means
  • Pressure Switches have one or two switches that trip at configured alarm setpoints on rising or falling pressure. Typically they do not display pressure
  • Pressure Transducers/Transmitters convert pressure from a fluid into an electrical signal such as 0-5 VDC, 0-10 VDC, or 4-20 mA that can be used for control, recording, and/or display. Transducers are typically strain gauge type and Transmitters are capacitance type
  • Remote Seals/Diaphragm Seals protect pressure measurement equipment and personnel from the dangers of a corrosive or extreme temperature processes
  • Siphon / Pressure Dampeners protect pressure measurement instruments. Siphons protect from hot fluids such as steam, while Pressure Dampeners protect against rapid pressure surges
  • Instrument Manifolds / Block and Bleed Valves are used to isolate the process from the pressure measurement instrument so that it can be serviced and calibrated
Other Pressure Measurement instrument selection considerations
  • Accuracy required?
  • Materials of construction? Chemical compatibility with the fluid, fluid temperature, ambient temperature, hazardous area classification, weatherproof, etc.
  • Are alarm relays required?
  • What kind of signal output, if any, is required?
  • Local display? Analog or Digital?
  • Minimum, maximum, and operating pressure range?
  • Process connection?  Threaded, flanged, sanitary
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