Diaphragm Gauges


Marsh Bellofram low-pressure diaphragm gauges are 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 millimeters of mercury.


ASME Grade A-1% Accuracy Diaphragm Gauges

ASME Grade A-1% Accuracy Diaphragm Gauges

Marsh low-pressure diaphragm gauges are universally known for their dependable performance and accuracy, with ASME Grade A-1% accuracy for ranges above 30″ of water.

Vacuum Cleaner Test Gauge

Vacuum Cleaner Test Gauge

Consult factory.

Gas Pressure Test Set

Gas Pressure Test Set

Consult Factory.

Medical-Grade OEM Diaphragm Gauge

Medical-Grade OEM Diaphragm Gauge

Low Pressure Diaphragm Gauges Marsh Bellofram Marshalltown diaphragm gauges offer high-sensitivity medical-grade low-pressure sensing capabilities over a standard range of 10 psi, with capability to measure required values as low as 1 centimeter/H2O. The gauges are expressly designed to support [...]