API 6A High Temperature Gate Valve | Up to 650°F

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Product Overview

The DEENPU high temperature gate valve is designed for service where line temperature exceeds the standard API 6A temperature class, up to 650°F (343°C). Standard elastomeric seals are replaced with graphoil packing and high-temperature seat inserts, so the valve keeps a reliable seal in steam, thermal recovery and hot production service.

The pressure boundary is identical to our standard API 6A gate valve line, so dimensional data and end connections match standard flanged and threaded valves and drop into the same piping layouts.

Key Features

• Service temperature up to 650°F (343°C)
• Graphoil stem packing — no elastomer degradation
• High-temperature metal or reinforced seat inserts
• Same outline dimensions as standard API 6A gate valves
• 2000 – 5000 PSI working pressure
• Flanged and threaded end connections

Technical Specifications

Design Standard	API Spec 6A
Temperature Rating	Up to 650°F (343°C)
Working Pressure	2000 – 5000 PSI
Stem Packing	Graphoil / graphite based
Seat Inserts	High-temperature reinforced compound
End Connections	API 6A flanged or threaded

Dimensions & Technical Data

Quality & Testing

Every DEENPU API 6A High Temperature Gate Valve is manufactured under our API-compliant quality system: raw material traceability, 100% dimensional inspection, hydrostatic pressure testing and hardness verification before packing. Material certificates, inspection reports and API documentation are provided with shipment on request.

Applications

• Steam injection and thermal recovery wells (SAGD, CSS)
• Hot production flowlines
• Geothermal and high-temperature testing installations

Frequently Asked Questions

Q: What makes this valve suitable for 650°F service?

A: All elastomers are eliminated: stem sealing uses graphoil packing and the seats use high-temperature reinforced inserts, while the body material retains its strength at elevated temperature.

Q: Can it be used intermittently at standard temperatures?

A: Yes — it is fully interchangeable with a standard API 6A valve of the same size and rating.

Q: Is a fire-safe version available?

A: Graphite-based sealing inherently provides fire-safe behavior; API 6FB fire test certification is available on request.

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