Daily Archives: March 22, 2017

What is a Globe Valve and Where are They Used?

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Globe valves are linear motion valves that are widely employed to stop, start and throttle flow. In this article, we will have a simple introduction about globe valve function, advantages and disadvantages, and common applications of globe valves.

 

Globe valves are designed with a stem that moves up and down to regulate flow inside the valve, a disc (ball, composition, or plug) and seat, which is generally screwed into the valve body. Seats are designed in plane parallel or inclined to the line of the flow. These types of modulating valves are most commonly used to valve throttle, open or close flow in a system. The three basic globe valve body designs are Wye, Tee and Angle.

 

Advantages and Disadvantages of Globe Valves

 

Advantages:

 

  • Good shutoff capability.
  • Moderate to good valve throttling capability.
  • Shorter stroke (compared to a gate valve).
  • Easy to machine or resurface the seats.
  • Can be used as a stop-check valve.

 

Disadvantages:

 

  • Higher pressure drop (compared to a gate valve).
  • Requires greater force or a larger actuator to seat the valve.

 

Typical Globe Valve Applications

 

The following are some of the typical applications of globe valves:

 

  • Cooling water systems.
  • Fuel oil systems.
  • Feedwater or chemical feed systems.
  • Boiler and main steam vents and drains.
  • Turbine lube oil system and others.

 

NICO Valves Corp. is a leading industrial valve manufacturer in Taiwan and China and has been exporting this line of products for more than 20 years to all over the world.

 

We have full qualification for manufacturing widest kind of industrial valves in all common sizes & customized sizes, and available in ANSI, JIS, DIN standards. Its products includes: Gate, Globe, Check, Ball Valve, Knife Gate Valve, and Y-strainer. If you need more information about globe valves and other industrial valve series, welcome to browse NICO’s website or contact with us directly for further details!

 

 

Article Source: http://www.bmengineering.co.uk/news/globe-valves/what-is-a-globe-valve-and-where-are-they-used

 

Flat Bed Lathe vs. Slant Bed Lathe

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The lathe is piece of equipment that is used for turning, drilling and shaping certain materials including metal, glass and wood. There are two types of lathe machines based on bed alignment: The flat bed and slant bed lathe. And what are the differences between the two…?

 

Flat Bed CNC Lathe

 

As its name suggests, it is a flat CNC lathe where you are required to place materials accurately to avoid mistakes in the cutting process. It can be used for light and heavy metal machining, delivering a precise finish for the working material.

 

Slant Bed CNC Lathe

 

Slant bed lathes are aligned sideways. They produce a Z-axis movement. However, they only function at a certain speed throughout the machining process.

 

The Differences between Flat Bed and Slant Bed Lathes

 

Flat Bed Lathe:

It can handle both light and heavy duty materials with exact precision. Flat bed lathe has a high range of machining, stability and productivity. Only skilled professionals are allowed to handle this type of lathe because it is a heavy-equipped machine. It may cause injury if not properly operated.

 

Slant Bed Lathe:

It is advisable to use for light materials only. Slant bed lathe has a lower range of productivity due to its machining capacity. It is a user-friendly lathe where machining is a lot easier.

 

Similarities of Flat Bed and Slant Bed Lathes

 

Flat bed and slant bed lathes are both used for:

 

  • Mining industries
  • Shipping materials and equipment
  • Different parts of machinery
  • Industrial materials
  • Power plant materials and equipment

 

In general, both flat bed and slant bed lathes are useful for achieving a precise finish. The lathe you should use will depend greatly on the material you are working with.

 

With years of efforts of research and development, the Shun Chuan’s slant bed CNC lathe will offer the unique rigidity. Our slant bed lathes enhance heavy duty, precision and stability. With its excellent machine structure, you can handle heavy cutting with more ease than ever before. If you need further specification and details about slant bed lathe or other CNC lathes, welcome to browse Shun Chuan’s website or contact with us directly!

 

Article Source: http://www.cncturning.co.uk/blog/blog/flat-bed-vs-slant-bed-cnc-lathes/