GLOBE VALVES

Globe Valves for Controlled Flow & Shut-Off.

Avasi Energy supplies industrial globe valves in Sabah and Malaysia, supporting throttling, regulation and shut-off requirements across oil & gas, petrochemical, energy and process industries.

Our sourcing scope includes T-pattern, Y-pattern and angle-pattern globe valves, together with cast steel, forged steel, pressure-seal, bellows-seal and selected actuated configurations.

Each enquiry is reviewed against the specified valve pattern, size, pressure class, body and trim materials, disc and seat design, bonnet construction, end connections, service conditions, operation, testing and documentation requirements.

Based in Kota Kinabalu, Sabah, Avasi Energy works with suitable manufacturers and supply partners in Malaysia and internationally to coordinate globe-valve requirements according to customer datasheets, material requisitions and project specifications.

Unlike a gate valve that is primarily intended for isolation, a globe valve uses a disc or plug moving toward and away from a seat to vary the effective flow area through the valve.

This makes globe valves well suited to applications requiring:

• Flow Regulation
• Throttling
• Controlled Shut-Off
• Frequent Operation
• Selected Pressure-Reduction Duties

The internal flow path of a conventional globe valve changes direction through the body, which generally creates a higher pressure drop than more straight-through valve designs such as gate or full-bore ball valves.

T-Pattern Globe Valves

The Conventional Globe Valve Configuration.

T-pattern — sometimes referred to as conventional or Z-pattern — globe valves use an internal flow path that changes direction as fluid passes through the seat area.

They are widely applied where throttling, flow regulation or shut-off is required and the resulting pressure drop is acceptable to the system design.

Depending on project specification, Avasi can support:

• Cast Steel Construction
• Forged Steel Construction
• Bolted Bonnet
• Pressure-Seal Bonnet
• Flanged Ends
• Butt-Weld Ends
• Socket-Weld / Threaded Ends for Applicable Forged Designs
• Manual or Actuated Operation

Y-Pattern Globe Valves

A More Direct Flow Path for Suitable Services.

Y-pattern globe valves arrange the stem, seat and flow path at an angle relative to the pipeline.

This geometry can reduce flow resistance compared with a conventional vertical globe-valve pattern while retaining the globe valve’s ability to regulate and shut off flow.

Depending on the project, requirements may include:

• Bolted Bonnet
• Pressure-Seal Construction
• Forged or Cast Body
• High-Pressure Service
• High-Temperature Service
• Bellows-Seal Construction
• Manual or Actuated Operation

Angle Globe Valves

Regulation with a Change in Flow Direction.

Angle globe valves combine the regulating principle of a globe valve with an approximately 90-degree change in piping flow direction through the valve body.

This configuration may reduce the need for a separate elbow in suitable piping arrangements and is selected where the piping layout or process requirement calls for an angle-pattern valve.

Selection still depends on the required:

• Pressure Class
• Material
• Trim
• End Connection
• Flow Direction
• Service Conditions
• Operating Method

There is no universally superior pattern.

The correct configuration follows the process conditions, allowable pressure drop, piping arrangement and project specification.

Gate Valve

Primarily selected for:

• Fully Open / Fully Closed Isolation

with relatively low obstruction when open in suitable designs.

Globe Valve

Primarily selected when the system requires:

• Throttling
• Flow Regulation
• Controlled Shut-Off

The globe valve’s disc-and-seat arrangement allows intermediate valve positions to control flow more effectively than a conventional gate valve.

The trade-off is higher pressure loss through the valve.

The internal trim of a globe valve directly influences its shut-off and regulation characteristics.

Depending on manufacturer design and project specification, globe-valve disc or plug configurations may include:

1. Conventional Disc

   • For general shut-off and regulating applications.

2. Contoured / Regulating Plug

   • Designed to provide more controlled variation of flow area through the valve travel.

3. Needle-Type Trim

   • Used in selected smaller-size or fine-metering applications where precise restriction is required.

4. Hard-Faced Trim

   • May be specified where throttling exposes seating surfaces to erosion, high velocity or demanding service conditions.

Globe valves can be sensitive to flow direction because differential pressure acts directly across the disc and seat.

The preferred direction depends on:

• Valve Pattern
• Disc Design
• Pressure Conditions
• Service
• Manufacturer Design
• Fail / Operating Philosophy

Many conventional globe valves have a preferred direction marked on the valve body.

Cast Steel Globe Valves

Widely used across refinery, petrochemical, oil & gas, energy and general process applications over broad size and pressure-class ranges.

Possible body-material families include:

• Carbon Steel
• Low-Temperature Carbon Steel
• Stainless Steel
• Duplex / Super Duplex
• Alloy Steel
• Special Alloys

Forged Steel Globe Valves

Commonly specified for compact and small-bore pressure piping and for selected high-pressure or severe-service applications.

Requirements may involve:

• API 602 Construction
• Socket-Weld Ends
• Threaded Ends
• Butt-Weld Ends
• Integral Flanged Ends
• Bolted Bonnet
• Welded Bonnet
• Bellows Seal

Depending on the valve construction and intended service, globe-valve bonnet configurations may include:

1. Bolted Bonnet

   • A conventional mechanically assembled body-to-bonnet connection widely used across industrial globe-valve applications.

2. Welded Bonnet

   • Common in selected compact forged valves where a welded construction is specified.

3. Pressure-Seal Bonnet

   • Used in selected high-pressure and high-temperature duties.
   • Pressure-seal construction is designed so internal pressure assists the bonnet sealing arrangement.

4. Extended Bonnet

   • May be required for selected low-temperature, cryogenic or other special-service applications.

Final bonnet selection follows the valve standard, service conditions and manufacturer design.

In a conventional globe valve, the stem penetrates the pressure boundary through a packing system.

A bellows-seal globe valve incorporates a metallic bellows assembly to provide an additional barrier between the process medium and atmosphere.

Depending on service and manufacturer qualification, bellows-seal valves may be specified for applications involving:

• Hazardous Fluids
• Toxic Service
• High-Temperature Media
• Vacuum Service
• Processes Requiring Enhanced Stem-Leakage Control
• Project-Specific Low-Emission Requirements

Avasi can source bellows-seal requirements through suitable qualified manufacturers where specified.

Pressure-seal globe valves may be specified for high-pressure and high-temperature systems such as selected:

• Steam Systems
• Power Applications
• High-Pressure Process Lines
• High-Temperature Plant Services

Y-pattern construction is common in this category because it can offer improved flow characteristics relative to conventional globe geometry.

Final selection should follow the project specification and manufacturer design.

Selected globe-valve designs can incorporate stop-check functionality, combining manual shut-off capability with a check-valve-type non-return function.

These are specialist configurations and should not be confused with a conventional globe valve.

Where required, Avasi can source project-specific stop-check globe valves subject to manufacturer capability and the applicable technical specification.

Depending on valve size and operating philosophy, Avasi can coordinate:

1. Manual Operation
   • Handwheel
   • Gear Operation, where appropriate
   • Chainwheel, where specified
2. Electric Actuation
   • For motor-operated requirements and remote plant operation.
3. Pneumatic Actuation
   • For automated on-off or selected modulating service.
4. Hydraulic Actuation
   • For specialised applications where required.

Avasi coordinates actuated globe-valve packages through suitable manufacturers, actuator suppliers and integration partners according to project requirements.

A manually operated globe valve can regulate flow by changing the disc position.

A dedicated control valve, however, normally forms part of a continuously modulating process-control loop and may incorporate:

• Engineered Control Trim
• Specified Flow Coefficient — Cv
• Actuator
• Positioner
• Control Signal
• Defined Rangeability
• Noise / Cavitation Treatment
• Fail Action

So:

• Globe valve: valve pattern capable of throttling.
• Control valve: engineered control package designed around dynamic process-control requirements.

If specialist control-valve sizing or process engineering is required, that should be separately defined within the supply scope.

A complete globe-valve metallurgy requirement may specify:

• Body
• Bonnet
• Disc / Plug
• Seat Ring
• Stem
• Backseat
• Bolting
• Packing
• Gasket
• Hard-Facing / Overlay

Depending on service conditions, possible material families can include:

1. Carbon Steel
   • For general oil & gas and industrial process service.
2. Low-Temperature Carbon Steel
   • Where low-temperature toughness is required.
3. Stainless Steel
   • For selected corrosive and process applications.
4. Alloy Steel
   • For elevated-temperature or specialised service.
5. Duplex & Super Duplex
   • For selected offshore and corrosive environments.
6. Nickel / Special Alloys
   • For demanding corrosion or process-media requirements.

Depending on globe-valve design and project requirements, end connections may include:

• Raised-Face Flanged — RF
• Ring-Type Joint — RTJ
• Butt-Weld — BW
• Socket-Weld — SW
• Threaded
• Special / Hub Connections, where specified

Applicable standards may include:

• ASME B16.5
• ASME B16.25
• ASME B16.11
• ASME B1.20.1
• and project-specific requirements.

Depending on project specification, requirements may include:

1. Fugitive Emissions
   • Because globe valves generally use a rising stem, projects may specify qualification under:
     • API 624
     • ISO 15848
2. Bellows Seal
   • Where an additional metallic stem-sealing barrier is required.
3. Sour Service
   • Where material and hardness restrictions are required for H₂S-containing environments.
4. Cryogenic Service
   • May require extended bonnet design, appropriate metallurgy, cleaning and specialised testing.
5. High-Temperature Service
   • May require alloy materials, hard-faced trim, pressure-seal bonnet construction and appropriate stem packing.
6. Severe Throttling
   • May require specialised trim materials or designs to address erosion, high velocity or service-specific effects.
7. Oxygen / Toxic / Hazardous Service
   • May require project-specific cleanliness, materials, packing or bellows-seal arrangements.

All special-service requirements must be supported by the selected manufacturer’s technical documentation.

Depending on construction and application, requirements may include:

1. API 623

   • Steel globe valves with flanged and butt-welding ends and bolted bonnets. API currently lists API 623 Second Edition as the published standard. American Petroleum Institute

2. API 602

   • Compact forged gate, globe and check valves for applicable small-bore petroleum and natural-gas service.

3. ASME B16.34

   • Pressure-temperature ratings, materials, dimensions, NDE, testing and marking for applicable industrial valves.

4. ASME B16.10

   • Face-to-face and end-to-end dimensions where applicable.

5. API 598

   • Inspection and testing for applicable industrial valves.

6. API 624 / ISO 15848

   • Fugitive-emission qualification where specified.

7. NACE MR0175 / ISO 15156

   • For applicable H₂S-containing oil & gas environments.

8. Project / Legacy Specifications

   • Certain projects may continue to reference other established valve specifications. The customer’s purchase specification should always govern.

The actual governing edition must follow the customer’s project requirement.

For oil & gas and project globe-valve supply, Avasi can coordinate inspection, testing and documentation through the selected manufacturer and inspection parties.

Depending on the project:

1. Pressure & Leakage Testing

   • Shell / Body Test
   • Seat / Closure Test
   • Backseat Test, where applicable
   • Hydrostatic Testing
   • Pneumatic Testing, where specified

2. Factory Acceptance Test — FAT

   • Customer or TPI — witnessed testing can be coordinated according to the approved ITP and procedure.

3. Site Acceptance Test — SAT

   • Where required and included within the agreed supply scope.

4. Material & Quality Verification

   • MTC / MTR
   • PMI
   • Hardness Testing
   • NDE / NDT
   • Dimensional Inspection
   • Visual Inspection

5. Third-Party Inspection — TPI

   • Inspection can be coordinated with approved third-party inspection agencies where required.

Depending on purchase requirements, documentation may include:

• Valve Datasheet
• Approved GA / Sectional Drawing
• Material Test Certificates — MTC / MTR
• EN 10204 3.1 / 3.2, where specified
• Inspection & Test Plan — ITP
• Pressure & Leakage Test Reports
• FAT Report
• Third-Party Inspection Report
• PMI / NDE Reports
• Fugitive-Emission Qualification Documentation
• Bellows Qualification Documentation, where applicable
• Actuator Datasheet
• Actuator Sizing / Thrust Data
• Certificate of Conformity / Compliance
• Operation & Maintenance Manual
• Recommended Spare Parts List
• Manufacturing Record Book / Data Book

Engineering teams need to know:

• Can this valve regulate the required service?
• What pressure drop is acceptable?
• What pattern and trim are suitable?
• What material and sealing arrangement are required?

Procurement needs to know:

• What exactly is being quoted?
• Does it comply?
• What testing is included?
• What documents will be delivered?

Avasi Energy coordinates both sides of the requirement.

1. Basic Valve Information

   • Globe Valve Pattern
     • T-Pattern / Y-Pattern / Angle / Other
   • Size / NPS
   • Pressure Class / Rating
   • Cast or Forged, where specified
   • Bonnet Type
   • End Connection
   • Quantity

2. Materials

   • Body Material
   • Bonnet Material
   • Disc / Plug Material
   • Stem Material
   • Seat / Trim Material
   • Hard-Facing Requirement, where specified
   • Packing / Bellows Requirement

3. Service Conditions

   • Process Fluid
   • Regulation or Isolation Duty
   • Design Pressure
   • Operating Pressure
   • Design Temperature
   • Operating Temperature
   • Required / Allowable Pressure Drop, where relevant
   • Flow Direction Requirement, where specified

4. Operation

   • Handwheel
   • Gear
   • Electric Actuator
   • Pneumatic Actuator
   • Hydraulic Actuator

5. Special Requirements

   • Bellows Seal
   • Pressure Seal
   • Sour Service
   • Fugitive Emission
   • Cryogenic
   • High Temperature
   • Severe Throttling
   • Stop-Check Function
   • Approved Manufacturer List

6. Inspection & Documentation

   • FAT
   • SAT, where applicable
   • TPI
   • MTC / MTR
   • PMI / NDT
   • ITP
   • Test Reports
   • MRB / Data Book
   • Required Delivery Date

Where available, attach:

• Valve Datasheet
• RFQ
• Material Requisition
• P&ID
• Piping Class
• Project Specification

API 623 Example

Globe Valve, NPS 4, Class 300, RF, Bolted Bonnet, Carbon Steel Body, Trim as per Datasheet, API 623, Handwheel Operated, Testing & Documentation as per Project Specification.

Forged API 602 Example

Forged Globe Valve, NPS 1", Class 800, Socket-Weld Ends, Bolted Bonnet, ASTM A105 Body, Trim as per Piping Class, API 602, Handwheel Operated.

Y-Pattern / Pressure-Seal Example

Y-Pattern Globe Valve, NPS 6, Class 1500, Butt-Weld Ends, Pressure-Seal Bonnet, Alloy Steel Body, Hard-Faced Trim, material and testing requirements as per Valve Datasheet.

Bellows-Seal Example

Bellows-Seal Globe Valve, NPS 2, Class 300, RF, SS316 Body, Bellows material and secondary packing as per approved manufacturer design, testing and documentation as per Project Specification.

Examples only. Final description must follow the actual customer datasheet and project specification.

1. Review
   • We review the required valve specification, testing and documentation requirements.
2. Manufacturer Selection
   • Suitable valve options are identified through our manufacturer and supply network.
3. Technical Compliance
   • The proposed pipe is reviewed against the agreed technical and commercial scope.
4. Actuation, Inspection & Testing
   • Where required, actuator integration, FAT, TPI, pressure testing and project inspection requirements are coordinated.
5. Documentation & Delivery
   • Required documentation, final release and logistics are coordinated through completion of the supply package.

Avasi Energy is based in Kota Kinabalu, Sabah, supporting pipe and piping-material requirements for customers, projects and industrial operations in East Malaysia.

Our local presence is supported by access to manufacturers and supply partners in Malaysia and internationally, allowing us to coordinate requirements according to project specifications rather than restricting customers to a single source or product range.

This positioning is increasingly relevant as Sabah’s OGSE ecosystem develops. PETRONAS reported in February 2026 that contracts secured by recognised Sabah-based OGSE vendors had grown substantially since 2021.

We support requirements associated with:

• Oil & Gas
• Petrochemical & Process
• Energy
• Offshore & Onshore Projects
• Maintenance & Shutdowns
• Brownfield Modifications
• Replacement Requirements

Send Avasi Energy your valve datasheet, RFQ, material requisition, piping class or project specification.

Whether your requirement involves a conventional T-pattern globe valve, Y-pattern design, angle valve, compact forged valve, pressure-seal configuration, bellows-seal valve or actuated package, our team will review the requirement and coordinate suitable sourcing options according to the specified technical, inspection, testing, documentation and delivery requirements.