Marsh Gauges Marsh Bellofram Group of Companies


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Marsh Instruments Division of Marsh Bellofram

For more than 140 years, the Marsh Instruments division of the Marsh Bellofram Group of Companies has been synonymous with the design, manufacture and supply of the highest quality pressure gauges and thermometers, with a portfolio that has developed into the most comprehensive gauge lines in the world. Marsh Instruments pressure gauges are used in countless applications where accuracy, dependability and durability are essential. Whether a standard or a specially designed pressure gauge, Marsh Bellofram provides a highly rugged precision instrument, adaptable to wherever pressure or temperature measurements are required.

Pressure Gauges

Marsh Instruments Gauges

Marsh Gauges

Marsh Gauges Include:

General Service (DRY)
Heavy Duty (DRY)
Severe Service
Liquid Filled
Low Pressure
Diaphragm Gauges
Custom Gauges
Test Gauges
Precision Service
Process Gauges
Special Application Gauges

Marsh gauges are designed to perform in rugged applications and harsh environmental conditions - especially where pulsation and vibration are a problem: Liquid Filled Gauges offer a significant cushioning and dampening effect, reducing pointer flutter and internal gauge damage; also lubricating the internals, and reducing corrosion.

Typical applications include refineries, chemical plants, offshore platforms, oil rigs, marine applications, general industrial application and OEM processes.

For more information on the various types of gauges available, and to make a quick selection for your needs, please call M&M Control Service at 800-876-0036.



Marsh Thermometers

Bimetal ThermometersPocket ThermometerMarsh Industrial Thermometers

Marsh Instruments designs and manufactures a variety of high-reliability and cost-effective industrial-grade temperature instruments, including bi-metal, hot water, industrial, submarine, miniature (pocket) and digital thermometers and tridicators, designed to provide high-accuracy monitoring of temperature fluctuations in process control, offshore, power generation, oil and gas, chemical processing, medical equipment, HVAC and OEM applications.


Diaphragm Seals

Marsh Diaphragm Seals

Marsh Diaphragm Seal 12000B8498 Gauge Protector with Rubber Diaphragm SealModel 14040 Welded Diaphragm Seal

Diaphragm seals are isolation devices, designed to separate pressure gauges and other instruments from the process media while allowing the instrument to accurately measure pressure. The use of diaphragm seals extends instrumentation service life and reduces downtime and maintenance costs, by protecting instrumentation from corrosion, clogging, freezing, or pulsation damage.



Marsh Instruments Thermowells

Marsh Custom and Flanged ThermowellsMarsh lagging and non-lagging thermowells

Thermowells are protective sheaths used to allow for the safe installation and removal of temperature instruments. Thermowells also protect the instrument against process pressures and are offered in a wide variety of materials to resist corrosion. Marsh Instruments manufactures thermowells in threaded, flanged, clamped and weld-in configurations in multiple sizes to fit any application.



Marsh Instruments Accessories

Marsh Instruments Accessories

Marsh Instruments offers a wide variety of accessories to enhance the performance of its instruments and protect against the effects of harsh operating conditions.

  • Cooling Towers
  • Gauge Cocks/Ball Valves
  • Siphons
  • Snubbers
PCD Precision Controls Division Marsh Bellofram MARSHMarsh Marshalltown

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M&M Control Service, Inc. does not represent or claim any affiliation, association, connection or approvals with or from any manufacturer unless stated. We fully acknowledge all trademarks and/or names which are pictured and/or listed throughout the M&M Control Service, Inc. Website.

(PowersTM, also known as, POWERS REGULATOR, MCC POWERS, POWERS-FIAT, POWERS PROCESS CONTROLS, CRANE POWERS and POWERS, a Watts Industries Company. The POWERS trademark is owned by Powers, A Division of Watts Water Technologies, Inc. M&M Control Service, Inc. Is a Stocking Distributor for PowersTM)

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