Carbon Steel Globe Valve (A105/WCB)

Carbon Steel Globe Valve (A105/WCB) relies on a linear motion disc moving perpendicular to a flat or conical valve seat to deliver precise flow throttling, regulation, and positive shutoff. Built with high-strength forged A105 steel for smaller bore lines or cast A216 WCB carbon steel for larger piping, these valves regulate media velocity by varying the distance between the plug disc and the internal seat ring.

Because the fluid path through a globe valve changes direction as it passes through the body, these units create a controlled pressure differential that allows operators to finely adjust flow rates without causing rapid seat degradation or cavitational damage. The Outside Screw and Yoke (OS&Y) design keeps external stem threads isolated from process media and line corrosion, while dynamic graphite stem packing ensures a tight seal against fugitive emissions in severe temperature and high-pressure service.

Practical Advantages in the Field

• Superior Flow Throttling & Regulation: Short stem travel distance provides precise, proportional flow control and superior throttling capability compared to standard gate or ball valves.

• Rugged High-Temperature Carbon Steel: Forged A105 and cast WCB bodies offer high tensile strength and thermal endurance in continuous steam, oil, and gas processes up to 425°C.

• Hardfaced Stellite Seating (Trim 5 / Trim 8): Hard-faced seating surfaces prevent wire-drawing, erosion, and galling during high-velocity throttling operations.

• In-Line Maintenance & Reseating: Internal seat rings and discs can be easily inspected, lapped, or replaced without removing the valve body from the pipeline.

• Fugitive Emission Control: Precision-machined stuffing boxes packed with flexible graphite and optional live-loaded Belleville springs prevent process leakage to atmosphere.

Brands We Provide

• GCC VALVES

• SVR GLOBAL

• FLOWORK

• EMERSON

• KITZ CORPORATION

Typical Deployments

• High-pressure utility steam lines, boiler feed water networks, and superheater drains

• Crude oil transport, refinery process bypass loops, and fuel oil piping

• Chemical processing plants handling non-corrosive hydrocarbons and gases

• Power generation facilities, cooling water systems, and blowdown lines

• High-pressure air and industrial gas distribution pipelines

Our Carbon Steel Globe Valves at AustraliaValves.com are manufactured and tested in accordance with international safety standards, complete with handwheel, gear, or pneumatic/electric actuator options across Australia. Buy Carbon Steel Gate Valve (A105/WCB) Here.

For flow coefficient (Cv) calculations, actuator sizing, or to request a quote, please contact us.