GLOBE VALVES |TYPES, ADVANTAGES, DISADVANTAGES & APPLICATIONS

What is a Globe Valve?

Globe valves are most in-demand in various Industries. A common use of Gate Valve is to control the flow of fluid in a pipeline and adjust the Gaps between the Globe Shaped Plug and the Ring Seat. Globe Valve doesn’t leak much as Compared to other Valves because of the Right Contact between the Disc and the Ring. Globe Valve has a Disc-type element which is in a spherical body. The Disc available on a globe valve can be removed from a flow path.

Parts of a Globe Valve

Parts of a Globe Valve are as follows: -

• Body
• Disc
• Body Seat Ring
• Lock Washer
• Disc Stem Ring
• Union Bonnet Ring
• Bonnet
• Stuffing Box
• Packing
• Gland
• Packing Nut
• Stem
• Wheel Nut
• Wheel

Advantages of Globe valves:

• The opening-closing time of a globe valve is shorter.
• Good throttling Capability.
• Shorter Stroke
• Available in Different Types with each offering unique Capabilities.
• The body ring seating surface process is easier.
• They contain positive shut-off

Disadvantages of Globe Valves:

• Requires a Great force or a large actuator to seat the Valve
• Globe Valves has a High-Pressure Drop
• Higher Flow Pressure and to close globe valves under high pressure, it requires a larger amount of force or an actuator with a large torque

Types of Globe Valves:

Various Types of Globe Valves are available and all of the globe valves is used per their Functions. Here we are listing some of its types.

Threaded Globe Valve:

Characteristics of a Threaded Globe Valve:

A Threaded globe valve has an Investment Casting body which is Screwed and has a Bonnet, wedge Disc and an Integral Seat

Working pressure: 200WOG

Connection type: Inside screws.

Used for: Water, oil, air, and some corrosive liquids.

Size: 1/2″, 3/4″, 1″, 11/2″, 11/4″, 2″.

SDNR Globe Check Valve

Description:

SDNR Globe Check Valve is available both in types of straight-through and Angle type which with main features as below: Screw-down Non-return.

Size: 1/2” NB to 20” NB.

The material used for making SDNR Globe Check Valve:

Bronze, Iron, Carbon Steel, Stainless Steel, and Duplex Stainless Steel, Other special materials will be also available upon request.

Forged Steel Globe Valve

Characteristic of a Forged Steel Globe Valve:

Bolted Bonnet, Welded Bonnet, Pressure Sealed Bonnet, Back- Seating, Full Port, Conventional Port.

Size: 1/4–4″NB.

Material Used:

A105, F304, F316 or Equivalent, Available also in low-temperature steels, low alloy steels, stainless steels, duplex type stainless steel and other exotic materials; Various trim materials available to suit service conditions.

Bellow Sealed Globe Valve

Characteristic of a Bellow Sealed Globe Valve:

Flanged, Buttweld, Socket Weld, Hub Connectors, Compact Flange or other proprietary connections.

Size:2–32"NB.

Material used:

WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or Equivalent, Available also in low-temperature steels, low alloy steels, stainless steels, duplex type stainless steels and other exotic materials; Various trim materials available to suit service conditions.

Cast Steel Globe Valve

Size: 2–48"NB

Material used:

WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or Equivalent, Available also in low-temperature steels, low alloy steels, stainless steels, duplex type stainless steels and other exotic materials.

Globe Valves Applications: -

The following are some of the Applications where Globe Valves are installed.

• Chemical Industries
• Steel Factories
• Shipping Industries
• Petrochemical Industries
• Paper Manufacturing Industries

Know More About Globe Valves