Hastelloy C276 Gate Valve Manufacturer & Exporter

ASTM A494 CW-12MW / B574 N10276 · 2" to 36" (DN50–DN900) · Class 150 / 300 / 600 / 900 / 1500 · API 600 / API 603 / BS 1414. Exported to Saudi Arabia, UAE & 40+ countries with full documentation.

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Why Hastelloy C276 for Gate Valves?

Hastelloy C276 gate valves combine the gate valve's proven shutoff design with near-universal resistance to hot hydrochloric, sulphuric and phosphoric acids, wet chlorine, and mixed oxidising-reducing media. This makes them the standard specification for hydrochloric acid, sulphuric acid dilution, wet chlorine gas, sour gas with high H2S, and aggressive waste streams.

Supreme Valves manufactures hastelloy c276 gate valves in ASTM A494 CW-12MW / B574 N10276 with design and testing per API 600 / API 603 / BS 1414. Every valve ships with EN 10204 3.1 material certificates and full pressure test reports; third-party inspection by Lloyd's, BV, or TÜV is available for project orders.

Hastelloy C276 Gate Valve Specifications

ParameterSpecification
Body MaterialsASTM A494 CW-12MW / B574 N10276
Corrosion IndexPREN >45
Temperature Range-196°C to +425°C
Size Range2" to 36" (DN50–DN900)
Pressure ClassClass 150 / 300 / 600 / 900 / 1500
End ConnectionsFlanged RF/RTJ, Butt Weld
Design StandardAPI 600 / API 603 / BS 1414
TestingAPI 598, hydrostatic shell & seat; NDE (RT/PT/UT) on request
DocumentationEN 10204 3.1/3.2 MTC, NACE MR0175 compliance, IBR where applicable

Available Designs

Solid & Flexible Wedge
Bolted Bonnet, OS&Y Rising Stem
Pressure Seal Bonnet (Class 900+)
Full Port Through-Conduit
Bypass & Drain Options
Gear Operator / MOV Ready

Industries We Serve

Chlor-alkali plants
Agrochemical & pesticide production
Flue gas desulphurisation
Pharmaceutical intermediates
Sour gas processing
Waste incineration scrubbers

Frequently Asked Questions

What hastelloy c276 grades do you use for gate valves?
We manufacture Hastelloy C276 Gate Valve bodies in ASTM A494 CW-12MW / B574 N10276. All castings/forgings are supplied with EN 10204 3.1 material test certificates; 3.2 certification with Lloyd's, BV, or TÜV witness is available on request. PREN >45.
What services is a hastelloy c276 gate valve recommended for?
Hastelloy C276 construction is proven in hydrochloric acid, sulphuric acid dilution, wet chlorine gas, sour gas with high H2S, and aggressive waste streams. The material offers near-universal resistance to hot hydrochloric, sulphuric and phosphoric acids, wet chlorine, and mixed oxidising-reducing media. Operating temperature range is -196°C to +425°C.
What sizes, ratings, and designs are available?
Sizes 2" to 36" (DN50–DN900), pressure classes Class 150 / 300 / 600 / 900 / 1500, end connections Flanged RF/RTJ, Butt Weld. Designs include: Solid & Flexible Wedge, Bolted Bonnet, OS&Y Rising Stem, Pressure Seal Bonnet (Class 900+), Full Port Through-Conduit. Design and testing per API 600 / API 603 / BS 1414, pressure tested per API 598.
Do you export hastelloy c276 gate valves to the Middle East?
Yes. We export to Saudi Arabia, UAE, Qatar, Kuwait, Oman, and Bahrain with complete documentation — MTCs, test certificates, NACE MR0175 compliance where specified, and third-party inspection. Typical delivery 4–8 weeks with DAP/CIF terms to GCC ports.

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