Gauges - Marsh Bellofram

Commercial pressure gauges cover HVAC, plumbing, fire protection and general building services. They're economical, easy to read and available in many standard ranges.

Commercial Gauge Options

• Dry and liquid-filled gauges – general service
• Brass internals – water, air and oil
• Common dial sizes – 2" to 4"
• Bottom and back connections – line or panel mounting
• Fire protection gauges – sprinkler system ratings

Choosing a Gauge

Select a range about twice normal operating pressure, and match connection size and dial type. Liquid-filled gauges handle vibration from pumps.

Centro supplies commercial gauges for HVAC, plumbing and building systems.

Related categories: Pressure Gauges | Test Gauges | Process Gauges | Differential Pressure Gauges | Industrial Gauges

Industrial pressure gauges are built for the vibration, pulsation and rough handling found in plants, pump rooms and machinery. They give operators a dependable local reading of pressure in water, air, oil, steam and process lines.

Industrial Gauge Options

• Stainless steel cases – corrosion resistance and durability
• Liquid-filled gauges – dampen vibration and pulsation for steady readings
• Brass and stainless internals – match media compatibility
• Bottom and back connections – for line and panel mounting
• Dial sizes from 2" to 6" – readable at a distance

Selecting a Gauge

Choose a range so normal operating pressure sits in the middle of the dial, generally about twice the operating pressure. Use a liquid-filled gauge on pumps and compressors, and add a snubber for pressure spikes. Confirm the connection size and accuracy grade.

Centro carries industrial pressure gauges for plant, process and equipment applications.

Related categories: Pressure Gauges | Process Gauges | Commercial Gauges | Test Gauges | Differential Pressure Gauges

Process pressure gauges are built for chemical, petrochemical, refining and power plant service. Heavy-duty cases, stainless wetted parts and high accuracy give dependable readings in demanding environments.

Process Gauge Features

• Solid-front safety cases – operator protection
• 316 stainless steel internals – corrosive media
• Liquid filling – vibration and pulsation damping
• Accuracy to 0.5% – precise readings
• 4.5" and 6" dials – easy reading

Choosing a Process Gauge

Choose range, accuracy, connection and materials suited to the process. Add diaphragm seals for corrosive, viscous or high-temperature media.

Centro supplies process gauges and accessories for plant instrumentation.

Related categories: Pressure Gauges | Commercial Gauges | Industrial Gauges | Test Gauges | Differential Pressure Gauges

Test gauges, also called calibration gauges, provide high-accuracy readings for checking and calibrating other instruments. They're essential tools for maintenance and instrument technicians.

Test Gauge Options

• Analog test gauges – 0.25% accuracy with mirror dials
• Digital test gauges – high accuracy and data logging
• Wide range selections – vacuum to high pressure
• Calibration certificates – traceable documentation

Choosing a Test Gauge

Select accuracy at least four times better than the instruments you're testing. Choose range and connection to match. Handle and store test gauges carefully to protect accuracy.

Centro supplies test gauges for calibration and verification.

Related categories: Pressure Gauges | Differential Pressure Gauges | Commercial Gauges | Digital Gauges | Process Gauges

Gauge parts and accessories protect, mount and maintain pressure gauges. The right accessory improves accuracy and gauge life and makes installations safer.

Accessories Available

• Syphons – protect gauges from steam
• Snubbers – dampen pulsation
• Gauge valves and cocks – isolation for service
• Panel mounting kits and brackets – secure mounting
• Overpressure protectors – prevent damage from spikes

Choosing Accessories

Match thread sizes and materials to your gauge and process, and select protective devices for the conditions.

Centro supplies gauge parts and accessories.

Related categories: Gauges | Tridicators | Pressure Gauges | Manometers

Pressure control products measure, monitor and regulate pressure in liquids, gases and steam. Accurate pressure control protects equipment and keeps processes stable.

Pressure Control Products

• Gauges – pressure, differential and specialty gauges
• Pressure transmitters and transducers – electronic monitoring
• Pressure switches – alarm and control set points
• Pressure regulators and sequence valves – control downstream pressure
• Accessories – snubbers, syphons, manifolds and gauge valves

Building a Measurement Point

Choose instrument range, accuracy and wetted materials, then add the right accessories, such as isolation valves and snubbers, for safe, accurate readings.

Centro supplies pressure control instruments and accessories from leading brands.

Shop by type: Pressure Transducers | Pressure Control Accessories | Gauges | Pressure Switch | Pressure Transmitters | Pressure Regulators | Sequence Valves

Related categories: Instrumentation, Measurement and Control | Controllers | Flow Control | Recorders | Seals and Accessories