SVR Global is a proud Globe Valve Manufacturer in USA that offers a wide range of Globe Valves. Our designs are specially made to give a high degree of reliability, sustainability, durability, and the highest standards in the entire production process. We also offer customized Globe Valves that are tailored to specific industrial demands.
What is a Globe Valve?
A globe valve is most commonly used in systems to open, close or throttle flow.
It is named after its globular body. A globe valve has two halves of the body being separated by an internal baffle. It has a disc (ball, composition or plug) attached to a stem that swings up and down to control flow and a seat. The flow line is either parallel to or inclined towards the seats. It stops the flow of fluid by moving the disc against the flow stream.
A globe valve is bi-directional, meaning the fluid can flow in either direction within the valve. It can be used both manually as well as automatically.
Applications of Globe Valves:
SVR Global is a proud Globe Valve Manufacturer in USA that has applications such as-
- Used in low-point drains and high-point vents
- Water-cooling systems.
- Fuel oil system
- Pumps and compressors.
- Feedwater, condenser air, chemical feed
- Found in extraction drains and condensing air extraction systems.
- Plumbing sector.
- Applications for Steam
- Piping in small sizes
- Suitable for systems requiring frequent stroking, vacuum, or a wide variety of temperature extremes.
- Used in systems where flow control is required
- Used in systems where leak tightness is important
- Used in systems where pressure drop is not an issue
- Used as an Emergency shutdown valve
Advantages of Globe Valves:
- Excellent sealing ability.
- Fast operation due to shorter stroke length
- Seats are easy to machine and resurface.
- By significantly altering the design, it can be utilized as a stop-check valve.
- Suitable for high-pressure systems.
- Controlled precision
- Fast-acting
- Has excellent closure ability.
- Great and precise throttling ability.
- Bubble tight shut-off
- Good for frequent operation as no fear of wear of seat and disc
- Easy to repair as seat and disc can be accessed from the valve top
- Used for corrosive or highly viscous fluids which solidify at room temperature
- Easy to maintain
- Good for frequent operation
Disadvantages of Globe Valves:
- Due to numerous directional shifts, high pressure drops.
- To seat the valve, more power is required.
- Under the seat- throttling flow and over the seat- shutoff flow.
- Low-flow coefficients
- Longer operating time
- Complex design
- Large disc assembly opening
- Heavier
- The disc is mounted to the stem in a cantilevered position.
- Not suitable for sterile or clean applications.
- A large pressure drop can be caused by obstructions and discontinuities.
- Internal trim parts in large high-pressure pipes can be damaged by pulsations and shocks.
- Greater power is required to open and create noise during operation.
- Can only be installed in one direction (arrow mentioned on the valve)
- High head loss from two or more right-angle turns of flowing fluid through the valve body
- Expensive
- Susceptible to Cavitation and flow-induced vibrations.
- Not recommended to use in large diameter piping
- High torque
Types of Globe Valves:
The two sides of a globe valve are unscrewed to open and close the valve. It is most commonly used in systems to open, close, or throttle flow. A globe valve has a stem that swings up and down to control flow, as well as a disc (ball, composition, or plug) and a seat that are both linked to the valve body. The flow line is either parallel to or inclined towards the seats. A globe valve is bi-directional, meaning the fluid can flow in either direction within the valve. It allows you to control the flow and pressure as well as full cut off the flow. It can be used both manually as well as automatically.
A Bellow Seal Globe Valve is a control valve with a compact structure that uses bellow to seal the valve stem components. The bellow valve has a bellow within, and the stainless-steel bellows' lower end is welded to the stem to keep the system fluid from eroding it. To produce a permanent seal, the other end is positioned between the body of the valve and the cover of the valve. This double seal construction prevents leakage, as the stem packaging will prevent additional leakage even if the bellows collapse. The bellows are welded to the valve stem to guarantee consistent working efficiency and to avoid valve stem vibration caused by valve insert movement.
Forged steel is a material created by fusing iron and carbon under extreme pressure. Forged steel has lower surface porosity, a finer grain structure, stronger tensile and fatigue strength, and more ductility than other treated steels. Steel becomes ductile and malleable when heated to forging temperature, allowing it to be shaped into the required shape with force and pressure.
Forged valves are created using a process known as forging, which involves shaping metals & alloys while they are still solid. Forged valves are known for their strength, making them excellent for high-pressure and high-temperature applications.
According to body type-
- Z type or Tee Type
- Y type or Wye Type
- Angle type
According to body bonnet type-
- Screwed Bonnet
- Bolted Bonnet
- Welded Bonnet
- Pressure Sealed Bonnet
Industries where Globe Valves are used:
SVR Global exhibits a wide range of versatility and adjustments to suit a variety of industrial requirements such as
- Oil and Gas
- Boilers
- Steam
- Refinery
- Pulp and paper
- Marine
- Power generation
- Machinery manufacturing
Description of Globe Valves:
SVR Global is a proud Globe Valve Manufacturer in USA providing an extensive range of valves, in numerous sizes, styles, and designs.
Material:
Globe valves are generally available in a variety of metal and alloy constructions, such as-
- Stainless steel
- Iron
- Cast steel
- Bronze
as well as plastics, to cover this wide range of industrial applications.
Ends: Bolted Bonnet, FF, RF, RTJ Flanged Ends, Rising stem
Nominal Pressure: PN 16 – PN 100
Class: 150-2500
Size: DN 15 – 1200
Know more about various valves provided by SVR Global - https://svrglobal.net/products/globe-valve/