Australia Valves

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Carbon Steel Gate Valve (A105/WCB)

Price Range : $56 TO $726Availability : Stock Available (Exworks-Factory at Origin)

Materials of Construction

Body & Bonnet

  • Cast Carbon Steel: ASTM A216 Grade WCB / WCC (For piping systems and larger sizes)

  • Forged Carbon Steel: ASTM A105 / A105N (For high-pressure, small-bore configurations)

Wedge / Disc

  • Standard: ASTM A216 WCB with 13% Cr overlay (Trim 8)

  • Alternative: Solid forged Carbon Steel or Stainless Steel (AISI 410 / 316)

Seat Ring & Trim

  • Standard Trim: Trim 8 (13% Cr / Hardfaced API Trim)

  • Severe Service: Stellited / Cobalt-base alloy hardfacing (Trim 5) for erosion resistance

Stem

  • Material: Hardened Stainless Steel AISI 410 / AISI 316

Gaskets & Packing

  • Stem Packing: Flexible Graphite / Die-formed Graphite rings with braided containment

  • Bonnet Gasket: Spiral Wound Stainless Steel 304/316 with Graphite filler or Ring Joint (RTJ)

Fasteners

  • Stud Bolts: Alloy Steel ASTM A193 Grade B7 / B7M

  • Heavy Hex Nuts: Carbon Steel ASTM A194 Grade 2H / 2HM

Coating & Surface Protection

  • Type: Industrial universal primer with anti-corrosive high-durability finish coat

  • Color: Standard manufacturer blue, black, or custom project-specific topcoat

  • Internal Protection: Rust preventative oil / temporary corrosion inhibitor on machined sealing faces

Carbon Steel Gate Valve (A105/WCB) is a fundamental isolation component used for on/off flow control in high-pressure and high-temperature piping systems. Designed for minimal flow resistance in the fully open position, these gate valves provide a robust and tight shutoff when closed. By reliably cutting off the flow, the carbon steel gate valve ensures operational safety, facilitates routine maintenance without full system drainage, and protects downstream equipment from process fluids during shutdowns.

Gate Valves supplied by AustraliaValves.com are engineered for dependable, heavy-duty operation in Australia’s critical oil & gas, petrochemical, power generation, and refining sectors, where mechanical integrity and long-term reliability under severe conditions are essential. Manufactured from high-quality forged (A105) or cast (WCB) carbon steel, these valves offer excellent strength, durability, and resistance to thermal expansion, ensuring they withstand the stringent performance requirements typical of leading industrial facilities and EPC contractors.

Designed for service where the valve is primarily fully open or fully closed, carbon steel gate valves provide a smooth, full-bore flow path, resulting in minimal pressure drop across the valve. The valve’s design facilitates gradual opening and closing, reducing the risk of damaging water hammer within the piping system and improving overall operational efficiency. The carbon steel construction, often paired with hardened stainless steel trim, ensures durable performance and a long service life even in demanding, abrasive, or erosive environments.

With extensive experience supporting infrastructure and industrial projects across Australia—including major sites in Western Australia, Queensland, New South Wales, and Victoria—AustraliaValves.com supplies gate valves suitable for pipelines, storage facilities, processing plants, and off-shore platforms. Each valve is selected or engineered to meet specific project demands, environmental conditions, and strict compliance requirements common to Australian operators.

Backed by proven sourcing from API and ISO-certified manufacturers, rigorous quality assurance, and comprehensive technical support across Australia, AustraliaValves.com ensures that its carbon steel gate valves deliver high performance, operational safety, and minimal maintenance for critical fluid isolation applications in municipal, industrial, and commercial installations.

For more products related to Control Valves click here. For Purchases in GCC click here.

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