eAI
Article

Globe Valve - A Comprehensive Guide

Anand George
#CostEstimation#Valve#PlantFCE

Overview

Globe valves are a popular choice for regulating and throttling flow in pipelines. Their unique design includes a spherical body and a movable disc, allowing precise flow control. These valves are extensively used in industries such as oil and gas, power generation, and chemical processing.

P&ID Symbol of Globe Valves

The globe valve is represented in P&IDs with a distinctive symbol:

SymbolNameDescription
Globe Valve ISO-10628 SymbolGlobe ValveA valve with a disc that moves perpendicular to the seat for flow control.
3-way Globe Valve ISO-10628 Symbol3-way Globe ValveA valve with a disc that moves perpendicular to the seat to control a 3-way flow.
Globe Valve ISO-10628 SymbolAngle Globe ValveA valve with a disc that moves perpendicular to the seat to control an angular flow.

Applications of Globe Valves

Globe valves are used in a variety of applications, including:

  1. Oil and Gas: For throttling high-pressure systems.
  2. Power Generation: Managing steam flow in boilers and turbines.
  3. Chemical Processing: Regulating process flows for safety and efficiency.
  4. Water Treatment: Controlling water flow in filtration and distribution systems.

Technical Specifications

Features:

Types of Globe Valves:

  1. Tee Pattern (Z-body): High-pressure drop; best for throttling.
  2. Angle Pattern: Ideal for pulsating flow.
  3. Wye Pattern: Lower pressure drop; efficient for high-capacity flows.

Data Sheet of Globe Valve

General Information

AttributeDetails
Valve TypeGlobe Valve
DesignTee, Angle, Wye Patterns
OperationManual, Pneumatic, Electric
StandardsANSI, API, ISO, DIN
IndustriesOil & Gas, Power Generation, Water Treatment

Material Specifications

ComponentMaterial Options
BodyCast Iron, Carbon Steel, Stainless Steel
DiscStainless Steel, Alloy Steel
SeatPTFE, Metal
StemStainless Steel

Technical Specifications

AttributeOptions
Size Range1/2 inch to 24 inches
Pressure RatingANSI Class 150, 300, 600
Temperature Range-20°F to 800°F (-29°C to 427°C)
End ConnectionsFlanged, Socket Weld, Butt Weld

Actuation Options

Actuator TypeDetails
ManualHandwheel
PneumaticDouble-Acting, Spring Return
ElectricOn/Off, Modulating, Explosion-Proof

Performance Characteristics

AttributeDetails
Leakage ClassClass IV (Metal Seat)
Flow Coefficient (Cv)Varies by size and design
Cycle Life50,000+ Cycles (Depending on material and application)

Accessories and Add-Ons

AccessoryDetails
PositionerAnalog or Digital
Limit SwitchesMechanical or Proximity
Solenoid ValveFor Pneumatic Actuators
Manual OverrideAvailable for Pneumatic and Electric Actuators

Example Configurations

ConfigurationDetails
Manual Operation6-inch Globe Valve, Carbon Steel Body, Flanged End, Handwheel
Pneumatic Actuation10-inch Globe Valve, Stainless Steel Disc, Spring Return Actuator, Socket Weld End
Electric Actuation12-inch Globe Valve, Alloy Steel Body, Explosion-Proof Actuator, Butt Weld End

Additional Information

ParameterDetails
Warranty12-24 Months
CertificationsISO 9001, API 623, CE
TestingHydrostatic, Air Leakage

Micro Data Sheet for Globe Valves

AttributeValue
MaterialCarbon Steel
Size8 inches
Pressure Rating300 PSI
Temperature Range-20°F to 400°F
End Connection TypeFlanged
Actuator TypePneumatic

Vendor List for Globe Valves

  1. Emerson: Offers precision-engineered globe valves for high-pressure applications.
  2. Flowserve: Specializes in durable globe valves for power generation and process industries.
  3. Velan: Supplies high-performance globe valves for critical applications.

Explore vendors for globe valves in your region using Mails AI.

Cost Data for Globe Valves

ParameterSpecificationEstimated Cost
MaterialCast Iron$200 - $500
Actuator TypeElectric$800 - $2,000
Size (Diameter)8 inches$400 - $1,200

For accurate pricing of globe valves, access cost data using Cost AI.

3D Model of Globe Valve

3D Model

To integrate a 3D model of a globe valve in a Process Plant use Model Builder.

Conclusion

Globe valves are indispensable for precise flow control in various industrial applications. Their robust design and versatile configurations make them a preferred choice for engineers. Use this guide alongside tools like Micro Data Sheets, Vendor Lists, and Cost AI to make informed decisions and enhance your project outcomes.

Similar Posts

← Back to Valves