FANAR Pressure Gauge MSBA 10 H7 – smooth piston tester (model 70044789)

FANAR Pressure Gauge MSBA 10 H7 – smooth piston tester is a handheld pressure testing instrument designed to apply and measure controlled pressure in hydraulic and pneumatic systems. The MSBA smooth-piston mechanism provides steady, repeatable piston movement while the H7 specification indicates a precise fit for mating components. The tool is compact and intended for use in workshops and maintenance environments where controlled pressure application and visual verification of piston action are required.

Advantages

The smooth-piston design reduces stick-slip behaviour and enables gradual pressure increase for accurate setting and observation. Its H7 tolerance fit helps ensure consistent mechanical engagement with compatible test fittings. The device is engineered for reliability in diagnostic checks and maintenance tasks, offering straightforward operation and durable construction suitable for regular workshop use.

Suitable for

• Leak and pressure checks in hydraulic circuits
• Verification of pneumatic components and seals
• Maintenance diagnostics and workshop inspection routines
• Controlled pressure application during component testing and assembly checks

When it may not be suitable

This smooth-piston pressure tester is designed for workshop and maintenance usage rather than continuous industrial process control. It may not be suitable for applications that require electronic data logging, automated pressure cycling, or extremely high-frequency actuation. For systems needing traceable electronic outputs or integration into process control networks, a digital or networked pressure measurement solution would be more appropriate.

Key specifications

• Operating principle: manual smooth-piston pressure tester
• Fit/tolerance class: H7 for precision mechanical engagement
• Intended media: hydraulic fluids and compressed air (pneumatic use)
• Use environment: workshop and maintenance settings
• Design focus: steady piston movement and controlled pressure application

How to use

Connect the tester to the system port or component using a compatible fitting that matches the H7 tolerance engagement. Operate the piston mechanism manually to apply pressure gradually while observing the component or a reference gauge. Use controlled strokes to increase or decrease pressure slowly to avoid sudden surges; verify seals, connections and component response at the required test pressures. After testing, depressurize the system and disconnect the tester following standard safety procedures.

What to consider before purchase

• Compatibility of test fittings and ports with an H7 tolerance engagement
• Required pressure range and whether manual operation meets testing needs
• Need for electronic measurement, data logging, or integration with other instruments
• Type of media to be tested (hydraulic fluids or compressed air) and compatibility with the tester materials

Usage recommendations

Use the FANAR MSBA 10 H7 tester on clean, depressurised ports for initial connection, perform gradual pressure application to avoid damage to seals and components, and follow workshop safety procedures including proper personal protective equipment and system isolation before disconnection.