An Introduction To Globe Valves

The globe valve gets its name from the globe-shaped design that differentiates it from other valves. Globe valve manufacturers in India produce these high-precision industrial valves in various materials, dimensions, sizes, and pressure classes to suit the heavy-duty applications they are meant to serve. Globe valves are ideal for industrial applications that require a throttling service to regulate the flow of media.

Globe valve installation and maintenance is a job for experts in this field. All new valves come with identification plates fixed to the yoke or bonnet flange. The plates carry the following information:

Globe valve manufacturer in india displays grey painted industrial valves inside the workshop
  • The type of valve
  • The size of the valve
  • The pressure and temperature indicators.
  • Details about the body, stem, disc, and seat.
  • Tag number
  • Year of manufacturing.

To ensure they reach their destination without any damage, all valves must be in a closed position with the end flanged protectors in place. Until they are installed, the valves must be properly stored and protected from weather extremities, dust, and moisture

Installation of valves: A step by step explanation of the procedure

To install large industrial valves to the maze of pipelines within the facility, experts and technicians follow a certain protocol to ensure the safety of everyone involved and to install the valve without any technical issues.

Also Read : Understanding Ball Valve, Globe Valves And Their Differences

Pre-preparation for globe valve installation:

Here are some of the measures taken before valve installation.

  • Conducting a risk assessment and eliminating all hazards and risks at the site.
  • De-pressurizing and draining the pipeline before the procedure.
  • Ensuring the valve is used within the specified temperature and pressure conditions.
  • The rust-preventive oil applied on the valve bore is cleaned with a commercial solvent.
  • The Valve is turned to an open position to check if all the internal components are free of dirt, grime, and foreign particles.
  • The pipeline is checked to ensure it is free of weld splatter and dirt.

Points to be followed during the installation process:

  • The valve is unpacked with utmost care.
  • Technicians run a complete dry cycle from closed to open position and vice versa.
  • The globe valves shall be installed in the direction of the arrow given in the valve.
  • The valve should be kept in a closed position during installation.
  • The valve ends, and the pipe ends should be in perfect alignment.
  • The pipelines for valves with flanged end construction should have the correct gap and assembled gasket thickness.
  • Correct welding material should be used as per the approved procedures.
  • The flanged bolts should be tightened in a diagonal pattern after installation.
  • The internal pressure is gradually raised to ensure that the components are properly installed, and the valve is sealed.
  • The internal pressure is raised to operating levels to check again.

Tips given by globe valve manufacturers for globe valve maintenance

Like every other mechanical device, industrial valves require regular maintenance to ensure they operate for many years without any technical issues. Oilway, India's leading industrial valve suppliers, suggest the following tips to consider to ensure the valve's extended durability.

  • Valves require regular inspection, especially to the gland, to ensure no wear and tear can cause leaks.
  • Smear stem threads and yoke sleeves with an adequate amount of lubrication to ensure a smooth operation.
  • Cycle the valve to prevent the disc from bedding itself in the seat if the valve is idle for a long time.
  • Do not overtighten the gland bolts. Always replace the gland packing if there is any leakage.
  • Bonnet should be checked for the tightness of the studs to help prevent leakage.
  • Bonnet tightening should be done evenly in a sequence of the diametrically opposite nuts.

Do's and Dont's for valve maintenance:

  • Only experts should be allowed to dismantle valves for gland packing replacement or bonnet gasket replacement.
  • Dismantling should be done only after depressurising and emptying the pipeline of all the media.
  • The valve handwheel should never be used to handle the valve. It should be used only for operation.
  • The valve should not be moved or lifted with the actuator, gear unit, or bye-pass arrangement.
  • Staff should wear personal protection equipment while operating large industrial valves.

Improve your industrial safety with Oilway's valves, India's largest globe valve manufacturer

Oilway manufacturers and supplies a wide range of industrial valves with unmatched quality and durability. Our valves are in absolute conformation to international quality and safety standards. As the leading industrial valve suppliers in India, we also customise industrial valves as per the application, dimensions, and materials. Call us@ +86-21-69891289 to discuss your customisation requirements.