High-Temperature Ball Valves

Engineered to reliably control fluid flow at elevated temperatures, typically exceeding 200°C and up to 500°C (932°F) or higher

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What Are High-Temperature Ball Valves?

High-temperature ball valves are specialized industrial valves engineered to reliably control the flow of fluids — liquids, gases, or slurries — at elevated temperatures, typically exceeding 200°C (392°F) and often reaching up to 500°C (932°F) or even higher in extreme cases.

Unlike standard ball valves, which use soft sealing materials that degrade at high heat, high-temperature ball valves are designed with specific materials and construction features to maintain their integrity and sealing capability under thermal stress.

High-temperature versions typically feature metal-to-metal seating. The ball and seats are precisely machined from hardened metals, often coated with highly durable and heat-resistant materials such as Tungsten Carbide Coating (TCC)and Chromium Carbide Coating (CCC).

✓ Metal-to-metal seating with TCC/CCC coating — reliable sealing integrity up to 500°C and beyond

Technical Specifications

Temperature Range

Typically exceeding 200°C (392°F) up to 500°C (932°F) or higher in extreme cases

Pressure Rating

ANSI 150 (PN 10–16) | ANSI 300 (PN 25–40) | ANSI 600 (PN 63–100) | ANSI 900 | ANSI 1500 | ANSI 2500 | 800

Size Ranges

1/2" | 3/4" | 1" | 1½" | 2" | 3" | 4" | 6" | 8 RB

Seat Design

Metal-to-metal seating

Seat Coating

Tungsten Carbide Coating (TCC) | Chromium Carbide Coating (CCC)

End Connections

Threaded | Welding Ends | Flanged | Hub

Materials

Carbon Steel (ASTM A105N/A350 LF2) | Stainless Steel 316 | Super Duplex | Inconel 625/625/718

Certifications

PED (DN >25) | Fire Safe | Fugitive Emission (ISO 15848-1/2) | CRN

Key Features

Metal-to-Metal Seating

Ball and seats are precisely machined from hardened metals, maintaining sealing integrity under thermal stress where soft seat materials would degrade.

Tungsten Carbide Coating (TCC)

Highly durable and heat-resistant coating applied to ball and seat surfaces, providing exceptional wear and temperature resistance.

Chromium Carbide Coating (CCC)

An alternative heat-resistant coating option offering high hardness and thermal stability for demanding high-temperature service conditions.

Designed for Thermal Stress

Construction features and material selection are specifically engineered to maintain dimensional integrity and sealing capability under the thermal cycling typical of high-temperature process service.

Configuration Options

Ball valves can be customized to meet your specific requirements:

Seat Design

• Metal-to-metal
• Tungsten Carbide Coating (TCC)
• Chromium Carbide Coating (CCC)

Design

• Single Block (SB) / SBB
• Double Block (DB) / DBB

End Connections

• Threaded
• Welding Ends
• Flanged
• Hub

Applications

Ball Valves are the ideal choice for:

High-temperature process service in Refining & Petrochemical plants where temperatures exceed the capability of soft-seat valves

Steam service and thermal oil circuits requiring reliable sealing at sustained elevated temperaturesdemand purpose-designed valvesbiocides, or other chemicals into a live process stream

Applications with thermal cycling where metal-to-metal seating maintains integrity through repeated temperature variation

Oil & Gas and Petrochemical processes involving hot fluids, gases, or slurries at temperatures up to 500°C or higher

Need a different configuration?

Explore our Low Temperature & Cryogenic valves for sub-zero service, or DB / DBB for standard temperature double block designs.

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