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MIDWEST INSTRUMENT

MIDWEST INSTRUMENT is a manufacturer of differential pressure gauges, indicators, and related instrumentation, with a product line that serves industrial applications requiring precise measurement of pressure differentials. The company's portfolio includes piston-type and diaphragm-type differential pressure gauges, as well as 3-color differential pressure indicators with integrated switches. These instruments are used in applications such as filter monitoring, flow measurement, and liquid level indication in industries including oil and gas, chemical processing, water treatment, and HVAC. The product range covers static pressure ratings up to 1,000 psig, with accuracy specifications ranging from ±5% of full scale for indicators to ±3-2-3% for certain gauge models. Housing materials include aluminum, 316 stainless steel, and glass-reinforced plastic, while sensor materials include Buna-N and Viton, allowing compatibility with various process fluids. The 3-color indicators provide visual status through green, yellow, and red transition zones, enabling at-a-glance assessment of differential pressure conditions. MIDWEST INSTRUMENT also offers models with optional switches for alarm or control functions. 3G Electric stocks over 330 SKUs of MIDWEST INSTRUMENT products, including the Series 120, 130, and Model 142 gauges, as well as the 522 series indicators. Each SKU is accompanied by a datasheet, and 3G Electric provides global logistics support for procurement specialists and plant engineers. The product line is suited for maintenance and operations teams who need reliable differential pressure monitoring without unnecessary complexity.

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Tentang MIDWEST INSTRUMENT

MIDWEST INSTRUMENT is a manufacturer of differential pressure gauges, indicators, and related instrumentation, with a product line that serves industrial applications requiring precise measurement of pressure differentials. The company's portfolio includes piston-type and diaphragm-type differential pressure gauges, as well as 3-color differential pressure indicators with integrated switches. These instruments are used in applications such as filter monitoring, flow measurement, and liquid level indication in industries including oil and gas, chemical processing, water treatment, and HVAC. The product range covers static pressure ratings up to 1,000 psig, with accuracy specifications ranging from ±5% of full scale for indicators to ±3-2-3% for certain gauge models. Housing materials include aluminum, 316 stainless steel, and glass-reinforced plastic, while sensor materials include Buna-N and Viton, allowing compatibility with various process fluids. The 3-color indicators provide visual status through green, yellow, and red transition zones, enabling at-a-glance assessment of differential pressure conditions. MIDWEST INSTRUMENT also offers models with optional switches for alarm or control functions. 3G Electric stocks over 330 SKUs of MIDWEST INSTRUMENT products, including the Series 120, 130, and Model 142 gauges, as well as the 522 series indicators. Each SKU is accompanied by a datasheet, and 3G Electric provides global logistics support for procurement specialists and plant engineers. The product line is suited for maintenance and operations teams who need reliable differential pressure monitoring without unnecessary complexity.

Aplikasi Umum

  • Filter monitoring in industrial water treatment — MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators
  • Flow measurement in chemical processing — MIDWEST INSTRUMENT Series 120 piston-type differential pressure gauges
  • Liquid level indication in oil and gas storage tanks — MIDWEST INSTRUMENT Model 142 diaphragm-type differential pressure gauges
  • HVAC system filter condition monitoring — MIDWEST INSTRUMENT Series 130 differential pressure gauges with glass-reinforced plastic housing
  • Pump differential pressure monitoring in industrial plants — MIDWEST INSTRUMENT 522 series indicators with switch for alarm output

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang MIDWEST INSTRUMENT dari 3G Electric.

What is the typical accuracy of MIDWEST INSTRUMENT differential pressure gauges?

MIDWEST INSTRUMENT differential pressure gauges offer accuracy specifications that vary by model. The Series 120 piston-type gauges provide ±3-2-3% gauge accuracy, while the Series 130 diaphragm-type gauges offer ±5% gauge accuracy. The 3-color differential pressure indicators (522 series) have an accuracy of ±5% of full scale. These accuracy levels are suitable for industrial monitoring applications where precise but not laboratory-grade measurement is required.

What materials are available for MIDWEST INSTRUMENT 522 series indicator sensors?

The MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators are available with sensor materials in Buna-N or Viton. Buna-N (nitrile rubber) is suitable for petroleum-based fluids and general-purpose applications, while Viton (FKM) offers enhanced chemical resistance for aggressive media. The housing material can be aluminum or 316 stainless steel, depending on the model variant.

What is the maximum static pressure for MIDWEST INSTRUMENT 522 series indicators?

The MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators are rated for a maximum static pressure of 1,000 psig. This rating applies to both the aluminum and 316 stainless steel housing variants. The indicators are designed for use in systems where the static pressure does not exceed this limit, ensuring reliable operation and safety.

How do the transition points work on MIDWEST INSTRUMENT 3-color indicators?

MIDWEST INSTRUMENT 3-color differential pressure indicators use color-coded zones to show the differential pressure range. The indicator transitions from green (normal) to yellow (caution) to red (alarm) as the differential pressure increases. Each model has specific transition points; for example, the 522A-025-LE transitions at 0-11 psid (green), 11-18.5 psid (yellow), and 18.5-25 psid (red). This provides a quick visual reference for filter condition or flow status.

What series of MIDWEST INSTRUMENT gauges are available with diaphragm sensors?

MIDWEST INSTRUMENT offers diaphragm-type differential pressure gauges in the Series 130 and Model 142. The Series 130 gauges feature a glass-reinforced plastic housing and are suitable for medium to high operating pressures. The Model 142 gauges have a 316 stainless steel housing and a 4.5-inch dial. Both series use diaphragm sensors for applications requiring compatibility with a wider range of fluids compared to piston-type sensors.

Does 3G Electric supply MIDWEST INSTRUMENT products?

Yes — 3G Electric (S) Pte. Ltd. supplies MIDWEST INSTRUMENT products. We stock the MIDWEST INSTRUMENT catalog and supply genuine factory-original products with full manufacturer warranty and technical support.