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The GKTV Series Metal Sealed Ball Valve by GEKO is a high-performance, universal solution designed for severe service industries. Widely used in petroleum refining, chemical, coal chemical, electric power, metallurgy, and mining industries, GKTV series valves set the standard for metal-seated ball valves in extreme conditions. With decades of collaboration with leading technology providers and continuous product improvement, GEKO ensures that these valves deliver reliable performance in high pressure, high temperature, slurry, and corrosive media applications.
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GKTV Series Metal Sealed Ball Valve – High Performance, Reliable & Long-Life
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Size Range DN100 to DN600 (4" to 24"), full bore, reduced bore, or custom bore available |
Body & Bonnet Material Forged Carbon Steel (A105), Stainless Steel (CF8/CF8M), Alloy Steel (A182 F11/F22/F91), optional special alloys |
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Temperature Range -200°C to +800°C (-328°F to +1472°F) |
Stem / Shaft Material Stainless Steel 304/316, Alloy Steel, optional low-friction or coated stem |
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Maximum Allowable Working Pressure ANSI / ASME Class 150 – 4500 (depends on size and material)
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Seats & Seals Metal-to-metal sealing, optionally HVOF or spray-fused coatings, self-relieving seats for safety |
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Stem Material Oversized stainless steel / alloy steel stems, optionally coated or hardened |
Packing & Gland Live-load Belleville spring packing, graphite gaskets, O-rings, optional blow-out-proof sealing |
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Special / Optional Materials Inconel, Monel, Nickel Alloy, Super Duplex, customized coatings for slurry, coal, corrosive media or extreme temperature applications |
Operation Method Manual (Handwheel / Gear), Pneumatic, Electric Actuated |
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Special Design Features Double block & bleed, self-relieving seats, oversized stem, low torque, fire-proof & anti-static design, flexible operation, reliable sealing
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End Connection Standards Flanged: ASME B16.5 / EN1092 |
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Design Standards ASME B16.34, API 6D, MSS-SP-61, API 607 / BS6755 (fire-proof test)
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Applications Petroleum refining, chemical, coal chemical, power, metallurgy, mining, slurry, high temperature & high pressure processes |
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Testing & Inspection API598 / API 6D shell & seat tests, optional HVOF coating verification, NDT: X-ray, ultrasonic, magnetic particle, FEA verification |
Key Highlights High performance in extreme conditions, low operating torque, long service life, minimal maintenance, fire-proof & anti-static, modular and flexible design |
Product Details：
Size Range: 4” – 24”
Pressure Rating: Class 150 – Class 4500
Working Temperature: -200°C to 800°C
Test Standards: API598, API 6D, MSS-SP-61
Seal Type: Metal-to-metal sealing structure
Stem Alignment: High-precision stem guide bearing
Packing System: Live-load Belleville spring packing for reliable sealing
Flow Bore Options: Full bore, reduced bore, or custom bore to optimize valve
and actuator cost.
The GKTV series is designed to meet extreme service requirements, including
high temperature and high pressure steam, oil refining, coal gas transfer, and
slurry handling. Advanced coating technologies, such as HVOF thermal
spraying and nickel-based alloys, ensure superior wear and corrosion
resistance for long-term, trouble-free operation.
- Double Block and Bleed
Trunnion-mounted design with spring-loaded floating seats ensures tight
sealing on both upstream and downstream sides, even at full open or closed
positions. Retentate can be safely drained via a built-in drain valve.
- Self-Relieving Seats
Automatically relieve valve cavity pressure during temperature or pressure
spikes without the need for additional relief valves.
Ensures safety in liquid transfer processes.
- Oversized Stem Design
Withstands extreme torque and frequent operations.
Reduces risk of damage caused by particle accumulation.
- Reliable Stem and Body Sealing
High-quality O-rings and graphite gaskets provide dependable sealing
under wide pressure fluctuations.
Blow-out-proof O-rings available for enhanced safety in critical processes.
- Low Operating Torque
Trunnion-mounted structure reduces operational torque even under high
differential pressure, ensuring smooth valve operation.
- Forged Body Material
Forged body and end connectors with precisely engineered wall thickness
guarantee mechanical strength, reliability, and longer service life. Superior
to castings in structural integrity and pressure resistance.
- Flexible Operation
Low-friction seats and stem bearings reduce torque, allowing long-term,
grease-free operation.
- Fire-Proof and Anti-Static Design
Certified according to API607 and BS6755, tested under IACS supervision.
Optional anti-static structure for additional safety in explosive environments.
- Advanced Coating Technology
HVOF thermal spraying or metallurgical coating ensures high wear resistance,
corrosion resistance, and consistent thermal expansion.
Nickel-based alloy coatings suitable for slurry, coal cinder, gray water, and
black water applications.
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The GKV-133 series Stainless Steel Ball Valve Welded End can be made of precision cast CF8M (316L) stainless steel or WCB carbon steel material, with a swing type central valve body design for easy online maintenance.
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The GKTV Series Metal Sealed Ball Valve by GEKO is a high-performance, universal solution designed for severe service industries. Widely used in petroleum refining, chemical, coal chemical, electric power, metallurgy, and mining industries, GKTV series valves set the standard for metal-seated ball valves in extreme conditions. With decades of collaboration with leading technology providers and continuous product improvement, GEKO ensures that these valves deliver reliable performance in high pressure, high temperature, slurry, and corrosive media applications.
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The GKPV Series Metal Sealed Ball Valve is a high-performance, metal-seated valve designed for demanding industrial applications that require precise shutoff, high pressure resistance, and long service life.Manufactured with a forged steel body and precision-engineered internal components, this valve ensures exceptional durability and sealing integrity even under extreme temperatures and pressures.Its robust mechanical design, advanced seat structure, and integrated stem locking mechanism make it ideal for industries such as oil & gas, petrochemical, power generation, and refining.
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The GKBV Series Metal Seated Ball Valve With HVOF Coating is engineered for high-performance and severe service conditions. Featuring advanced HVOF coating technology, these valves provide excellent wear resistance, corrosion protection, and long-term reliability in high-pressure, high-temperature, and abrasive applications. With GEKO’s precision engineering and coating expertise, the GKBV Series ensures tight sealing performance, extended service life, and superior durability, making it the ideal choice for power plants, chemical processing, and oil & gas industries.
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