One stop source of process control solutions & measuring instrumentation for industrial and OEM applications.
Mechanical Gauges
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Big Bear Instruments offers a full list of Mechanical Pressure Gauges from a range of manufacturers. Designed for utility, industrial, or commercial use, these mechanical gauges are durable and well suited for many different applications. Sort by manufacturer, series, dial size, connection, and more to find the best mechanical gauge for your needed application.
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Ashcroft 1005, 1005P, 1005S Utility Pressure Gauge
The Ashcroft® 1005, 1005P, and 1005S series pressure gauges are a reliable, easily customizable, and have an aesthetic design for performance. Each series comes with an extensive variety of case materials, connection locations, and ranges that help make these models an ideal solution for many pressure measurement installations. A key feature of the 1005, 1005P, and 1005S series is its PowerFlex™ movement. This feature provides superior resistance to shock, vibration and pulsation, and extends product life and reduces maintenance costs. The 1005, 1005P, and 1005S series gauges also have True Zero™ , which reduces reading errors by using a “zero box” instead of conventional dial pins. To ensure its product life span and allow for easy readability, the 1005, 1005P, and 1005S series offers the option of adding a FlutterGuard™ to reduce movement wear and eliminates pointer flutter.
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Ashcroft 1008A / 1008AL Pressure Gauge
The Ashcroft® 1008A and 1008AL series pressure gauges offer exceptional quality, durability, and performance. The sealed case on these gauges protects from ambient conditions and includes features enhancing product performance and safety. The 1008A/AL series is an ideal gauge when high levels of vibration, pulsation, and pressure spikes are present in an application. Some key features include PowerFlex movement, TrueZero unique safety feature, and more. Common uses for the 1008A/AL series pressure gauges are on pumps & compressors, hydraulics & pneumatics, OEM equipment, pressure washers/sprayers, and irrigation equipment.
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Ashcroft 1008S/SL Industrial Pressure Gauge
$47.10The Ashcroft® 1008S series (40/50/63/100mm) pressure gauges are ideal for measuring in harsh environments. With their all stainless steel material, the 1008S series offers quality, reliability, and durability. The sealed case protects from ambient conditions and includes features enhancing product performance and safety. Some key features for the 1008S/1008SL series includes PowerFlex™ movement providing superior shock, vibration and pulsation performance available on most sizes, True Zero™ which reduces reading errors by using a “zero box”, optional PLUS!™ Performance or FlutterGuard™ , and many connection sizes/locations to address a wide range of installations.
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Ashcroft 1009 Industrial Pressure Gauge
$47.25Ashcroft® Type 1009 gauges are suitable where ambient corrosion is a major concern. Its attractive stainless steel case and ring provides excellent resistance to chemical, weather and corrosion attack. This 1009 has many optional features that allow a user to develop a basic or special product specification. The 1009 is part of the extensive line of Ashcroft stainless steel pressure gauges. The gauge is available dry, liquid-filled weatherproof or hermetically sealed and now with a Plus! Performance option.
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Ashcroft 1032 Sanitary Pressure Gauge
$355.70Ashcroft® type 1032 Sanitary Pressure Gauges are designed specifically to satisfy stringent sanitary requirements. They meet the need for sanitary type pressure gauges in the pharmaceutical, bio-tech, filtration, and food & dairy markets. With a quick connect clamp and diaphragm surface finish that is electropolished to 12-20RA, these instruments are also suitable for use in breweries, wineries, and citrus juice production plants. The 1032 series is available in 2.5″, 3.5″, and 4.5″ dial sizes with a choice of Tri-Clamp® type connections of 1-1/2″ and 2″. The 1032 Fractional Sanitary Gauge features a FlutterGuard™ option to reduce movement wear and eliminate pointer flutter. The 1032 Fractional gauge is offered in a 2″ dial with a 3/4″ Tri-Clamp connection.
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Ashcroft 1127 / 1128 Differential Pressure Gauge
$1,109.02Ashcroft® 1127 and 1128 series differential pressure gauges display the difference of two separate inputs on one dial indicator. Both series have open front cases made from aluminum and the 1128 is offered with “0” at the 12 o’clock position on the dial with positive pressure on either side of zero. This series also offers a built in back flange for surface or wall mounting. When the process media is corrosive to the gauge wetted parts, a diaphragm seal with capillary is available.
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Ashcroft 1130 Differential Pressure Gauge
$154.69Ashcroft® 1130 Series Differential Pressure Gauge uses a piston design where small migration of the process media is permissible. The 1130 series is recommended for high differential and high static pressures up to 6000psi. Body materials are available in Aluminum, Brass, and Stainless Steel, with Buna, Viton, or EPDM seals. The dial size offering for the 1130 series ranges from 2″ to 6″ and is offered dry or liquid (glycerin) filled. The 1130 series is typically used for filtration monitoring, hydraulics, flow rate, pump performance, and/or measuring pressure drop.
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Ashcroft 1131 Differential Pressure Gauge
$220.47Ashcroft® 1131 Series Differential Pressure Gauges are utilized for applications where migration of the process media is not permissible. They use a rolling diaphragm design to separate the high and low pressure ports to isolate the media and can see up to 3000psi static pressures. Body materials for the 1131 series are available in Aluminum, Brass, and Stainless Steel, with Buna, Viton, or EPDM seals. Dial sizes range from 2.5″ to 6″ and the case can be dry or liquid (glycerin) filled. The 1131 series is most commonly used for filtration monitoring, flow measurement, leak detection, and condition monitoring across heat exchange.
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Ashcroft 1132 Differential Pressure Gauge
$235.09Ashcroft® 1132 Series Differential Pressure Gauges have a convoluted diaphragm design with no migration of the process media. The 1132 series is recommended for lower differential and high static pressures, up to 1500psi. Body materials are available in Aluminum, Brass, and Stainless Steel, with Buna, Viton, or EPDM seals. The 1132 series comes in 2.5″, 3.5″, 4.0″, 4.5″, and 6.0″ dials and is offered in dry or liquid (glycerin) filled. Common uses for the Ashcroft 1132 series include filtration monitoring, flow measurement, tank level measurement, and leak detection.
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Ashcroft 1133 Differential Pressure Gauge
$409.27Ashcroft® 1133 Series Differential Pressure Gauges use a convoluted diaphragm to sense low inches of water differentials while ensuring no migration of the process media. The 1133 series offers maximum static pressure capability of 500 psi and ranges from 1IWD to 25IWD. Body materials are available in Aluminum or Stainless Steel. The 1132 series comes in 3.5″, 4.0″, 4.5″, and 6.0″ dials and is offered in dry or liquid (glycerin) filled. Common uses for the Ashcroft 1133 series include filtration monitoring, flow measurement, liquid level indication, and leak detection.
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Ashcroft 1188 / 1189 Low Pressure Process Gauge
$470.66Ashcroft® 1188 and 1189 low pressure bellows gauges are used for measuring low pressures from 10″ H2O to 10 psi pressure as well as vacuum and compound ranges. Coupled with their sensitivity, these gauges have a rugged design for process and industrial applications. Ashcroft’s 1188 series is available in 4.5″ dial and features a phenolic, black case. The 1189 series is available in 4.5″ and 6″ dials and features an aluminum case. Both the 1188 and 1189 series have all stainless steel movement, three bellows materials, bellows-actuated mechanism, and an easily adjustable micrometer pointer.
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Ashcroft 1279 Process Pressure Gauge
$101.11Ashcroft® 1279 process pressure gauges offer a wide variety of case styles, Bourdon tubes and pressure ranges to meet your application needs. With the component combinations available in the Duragauge line, over ten million variations are possible to serve the needs of all types of industries, including process, power, nuclear, aerospace and cryogenics.