Marsh Bellofram

Marsh Bellofram

Precision Air Pressure Regulators

  • 10 Air Pressure Regulator with 0.1% Accuracy
  • Type 110 Large Forward and Exhaust Flow Air Pressure Regulator
  • Type 40 Air Pressure Regulator
  • Type 41 Precision Air Pressure Regulator
  • Type 50/Type 50 NACE Precision Filter Air Set Regulators
  • Many more are available

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Diaphragm Gauges

Diaphragm gauges from Marsh Instruments are pressure instruments and gauges, universally known for their dependable performance and accuracy. The units incorporate a unique bronze diaphragm element and solid safecase design, allowing for accurate low-pressure readings in support of a variety of applications, with ASME Grade A-1% accuracy for ranges above 30″ of water. Available ranges include vacuum and pressure in inches of water, ounces per square inch and millimetres of mercury.

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Electronic Pressure Transducers

Electro-pneumatic transducers are used to convert current or voltage input signals to proportional output pressures. They are used for process control in valves, pneumatic relays and flow regulators. The PCD division of Marsh Bellofram designs and manufactures high-precision voltage-to-pressure (E/P), current-to-pressure (I/P), and pressure-to-current (P/I) transducers for a variety of industrial and OEM applications.

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Process Gauges

Process Gauges from Marsh Instruments. With over 125 years of proven experience, Marsh Bellofram offers the most complete line of process gauge instrumentation in the industry. An extensive list of designs and options makes the Marsh line of Process Gauges the intelligent and practical choice in process instrumentation.

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Marshalltown Value Series Pressure Gauge

With available diameters of 1.5″ and 2″, the Marshalltown value series pressure gauge from Marsh Instruments is the most economical, general purpose gauge in our general service product portfolio, with monitoring capabilities ranging from 15 to 200 psi (with dual scale in psi and kPa), and with components housed in a highly rugged steel case. These gauges offer ASME grade B accuracy with four standard mounting options and are suitable for use with water, oil, air, gas or other non-corrosive media.

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HVAC/R Gauges

Marsh Bellofram HVAC/R gauges are ruggedly designed to meet the everyday requirements of the heating, plumbing and refrigeration maintenance industries, as well as building inspection and construction, to help ensure systems are operating according to code. The gauges are offered in a variety of unique styles and types to meet the specific needs of each type of testing environment, with steel casing and copper alloy components and clear, easy-to-read dual pressure and temperature dial readout units.

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General Service Steel Case Gauge

The General Service Steel Case Gauge from Marsh Instruments is a family of cost-effective, general purpose instruments, designed for reliable pressure measurements and suitable for use with water, oil, air, gas or other noncorrosive media from vacuum/compound through 5,000 psi. The General Service Steel Case Gauge is available in five different dial sizes and offer highly repeatable pressure measurements.

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Diaphragm Seals

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. Marsh Bellofram recommends the use of diaphragm seals to extend instrumentation service life and reduce downtime and maintenance costs, by protecting instrumentation from corrosion, clogging, freezing, or pulsation damage.

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