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válvulas criogénicas

  • 1/2″-300LB BW Ends Cryogenic Bellows Seal Gate Valve
    1/2″-300LB BW Ends Cryogenic Bellows Seal Gate Valve
    Valve Type Gate Valve (Bolted Bonnet, Rising Stem, Bellows Seal)
    Nominal Size 1/2 Inch (DN15)
    Pressure Rating Class 300 LB (PN50)
    End Connection Butt-Weld Ends (BW) per ASME B16.25
    Body Material ASTM A182 F316L (Austenitic Stainless Steel)
    Design Standard API 602 / ASME B16.34 / BS 5352
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  • 1/2″-800LB Cryogenic Floating Ball Valve Ready For Actuators
    1/2″-800LB Cryogenic Floating Ball Valve Ready For Actuators
    Size 1/2 inch (DN 15)
    Pressure Class Class 800 LB (PN 130)
    Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
    Manufacturing Process Close Die Forged / Open Die Forged
    Design Standard ASME B16.34 / API 608 / API 6D / BS 5351
    End Connection Standard ASME B1.20.1 (NPT Thread) / ASME B16.25 (BW) / ASME B16.11 (SW)
    Face to Face Standard Manufacturer Standard / ASME B16.10
    Test & Inspection Std. API 598 / ISO 5208 / BS 6364 (Cryogenic Test)
    Fire-Safe Design API 607 / ISO 10497 (Optional)
    Fugitive Emission ISO 15848-1 (Optional)
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  • DN25-PN16 2-Piece Cryogenic Ball Valve
    DN25-PN16 2-Piece Cryogenic Ball Valve
    Nominal Size DN25 (1″)
    Pressure Rating PN16 (Class 150)
    Valve Type 2-Piece Floating Ball Valve
    Body Construction 2-Piece (Body + End Cap)
    End Connections Flanged (EN 1092 1 PN16) / Threaded (ISO 7 1 / NPT) / Socket Weld
    Temperature Range –196°C ~ +80°C (for cryogenic service)
    Suitable Media LNG (Liquefied Natural Gas), LPG, liquid nitrogen, liquid oxygen, liquid argon, ethylene, and other cryogenic fluids
    Fire Safe Design API 607 / ISO 10497 (optional)
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  • 1″-900LB F316 Cryogenic Floating Ball Valve
    1″-900LB F316 Cryogenic Floating Ball Valve
    Product Name Cryogenic Floating Ball Valve
    Nominal Size 1 inch (DN25)
    Pressure Class Class 900 LB
    Connection Type Flanged, Ring-Type Joint (RTJ) as per ASME B16.5
    Operation Manual Lever / Gearbox (Optional)
    Applicable Media LNG, LO2, LN2, LAr, Ethylene, Other Cryogenic Fluids
    Design Temperature -196°C to +80°C (Cryogenic Service)
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  • 1-1/2″ – 300LB Cryogenic Bellows Seal Gate Valve SAVVY
    1-1/2″ – 300LB Cryogenic Bellows Seal Gate Valve SAVVY
    Design & Manufacturing BS 6364 (Specification for valves for cryogenic service) , API 600, ASME B16.34, GB/T 44916
    Face-to-Face Dimensions ASME B16.10
    Flange Connection ASME B16.5 (Class 300 LB)
    Pressure-Temperature Rating ASME B16.34
    Testing & Inspection BS 6364, API 598, ISO 5208, GB/T 24925
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  • 2″-300LB Cryogenic 3-Way Floating Ball Valve Ready For Actuators
    2″-300LB Cryogenic 3-Way Floating Ball Valve Ready For Actuators
    Size 2 inches (DN50)
    Pressure Class Class 300 LB (PN50 / 750 PSI)
    Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
    Manufacturing Process Forged Steel / Cast Steel (depending on manufacturer)
    Design Standard API 6D / ASME B16.34 / BS 6364 (Cryogenic)
    End Connection Standard ASME B16.5 (Flanged RF) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)
    Face to Face Standard ASME B16.10
    Test & Inspection Std. API 598 / BS 6364 (Cryogenic Test)
    Fire-Safe Design API 607 / API 6FA (Optional)
    Fugitive Emission ISO 15848-1 (Optional)
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  • 2″-900LB 2-Piece Cryogenic Floating Ball Valve
    2″-900LB 2-Piece Cryogenic Floating Ball Valve
    Size 2 inches (DN50)
    Pressure Class Class 900 LB (PN150 / 2250 PSI)
    Body Material Forged Stainless Steel – ASTM A182 F316
    Manufacturing Process Forged Steel (Close Die Forged)
    Design Standard API 608 / API 6D / ASME B16.34 / BS 6364 (Cryogenic)
    End Connection Standard ASME B16.5 – RTJ Flanged (Ring Type Joint)
    Face to Face Standard ASME B16.10 / API 6D
    Test & Inspection Std. API 598 / BS 6364 (Cryogenic Test)
    Fire-Safe Design API 607 / API 6FA (Optional)
    Fugitive Emission ISO 15848-1 (Optional)
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  • 1/2″-800LB Cryogenic Floating Ball Valve
    1/2″-800LB Cryogenic Floating Ball Valve
    Size 1/2 inch (DN 15)
    Pressure Class Class 800 LB (PN 130)
    Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
    Manufacturing Process Close Die Forged / Open Die Forged
    Design Standard ASME B16.34 / API 608 / API 6D / BS 5351
    End Connection Standard ASME B1.20.1 (NPT Thread) / ASME B16.25 (BW) / ASME B16.11 (SW)
    Face to Face Standard Manufacturer Standard / ASME B16.10
    Test & Inspection Std. API 598 / ISO 5208 / BS 6364 (Cryogenic Test)
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  • 1/2″-2500LB Cryogenic Globe Valve
    1/2″-2500LB Cryogenic Globe Valve
    Size 1/2 inch (DN15)
    Pressure Class Class 2500 LB (PN420)
    Body Material Stainless Steel (ASTM A182 F304 / F304L / F316 / F316L)
    Manufacturing Process Forged Steel (Close Die Forged)
    Design Standard API 602 / ASME B16.34 / BS 6364
    End Connection Standard ASME B16.25 (BW) / ASME B16.11 (SW) / ASME B1.20.1 (NPT)
    Face to Face Standard ASME B16.10 or Manufacturer Standard
    Test & Inspection Std. API 598 / BS 6364 (Cryogenic Test)
    Fugitive Emission Compliance ISO 15848-1 / API 624 (Optional)
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  • Open Die Forged Cryogenic Floating Ball Valve
    Open Die Forged Cryogenic Floating Ball Valve
    Design & Manufacture BS 6364, ISO 28921-1, MSS SP-134, ASME B16.34
    Face-to-Face Dimension BS 6364 Table 1, ISO 5752 Series 11 (Extended)
    End Connections ASME B16.5 (RF/RTJ), EN 1092-1, GB/T 9113, JB/T 79
    Butt Weld Ends ASME B16.25, GB/T 12224
    Socket Weld / Thread ASME B16.11, NPT/BSPT per ISO 7-1
    Pressure Testing API 598, ISO 5208, BS 6364 Annex A (Cryogenic)
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  • Cryogenic Top Entry Trunnion-mounted Ball Valves
    Cryogenic Top Entry Trunnion-mounted Ball Valves
    • Type: Top Entry, Full Port (FP) / Reduced Port (RP), Trunnion-Mounted (Fixed Ball) Design
    • Operation: Gear Operated / Extended Stem with Actuator (Pneumatic, Electric, Hydraulic)
    • Design Standard: BS 6364 / ISO 28921-1 / MSS SP-134 / API 6D (Annex F – Cryogenic)
    • Face-to-Face: ASME B16.10 / ISO 5752 Series 11 (Cryogenic Extended) / BS 6364 Table 1
    • End Connection: Flanged (RF, RTJ) ASME B16.5 / ASME B16.47 / EN 1092-1 / ISO 7005 / BW (ASME B16.25)
    • Body Construction: Top Entry (Single Piece Body with Removable Bonnet/Cover)
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  • Cryogenic Open Die Forged Globe Valve
    Cryogenic Open Die Forged Globe Valve
    Forging Maps: Ultrasonic Testing (UT) reports per EN 10228-3
    Cryogenic Test Certificates: Leakage/performance data at -196°C
    Material Chemical Analysis: ASTM A751 (C ≤ 0.08%, S ≤ 0.015%)
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Cryogenic valves are specially engineered valves designed to operate in extremely low temperatures, typically below -150°C (-238°F), often used in the storage and transport of liquefied gases like LNG, liquid nitrogen, oxygen, or helium. These valves are built with extended bonnets to isolate the stem and packing from the cold media, preventing frost build-up and maintaining seal integrity. The materials used in cryogenic valves are carefully selected to withstand thermal shock and maintain flexibility and durability at cryogenic temperatures—common materials include stainless steel and Monel. These valves are usually top-entry or bolted-bonnet types for easy maintenance and are often fire-tested and certified for leak-tight performance under cryogenic conditions. Their seats and seals are typically soft-seated (PTFE or similar) for bubble-tight shut-off, although some use metal-seated designs for severe applications. The primary function of cryogenic valves is to provide precise control and reliable shutoff of cryogenic liquids and gases, which are stored under high pressure at low temperatures. Their design must also accommodate pressure buildup during rapid vaporization, ensuring safe venting and flow control.

What Are The Main Benefits Of Using Cryogenic Valves?

Cryogenic valves provide several essential benefits in cold-temperature applications. Firstly, they maintain tight sealing at ultra-low temperatures, ensuring no leakage of volatile or hazardous gases like LNG or liquid oxygen. Secondly, their extended bonnets prevent stem freezing, allowing for safer operation and easier manual control even during extreme conditions. Third, they’re made from specially treated metals that resist brittleness, cracking, and thermal expansion, providing long-term reliability. Fourth, they are built to handle sudden temperature changes—thermal shock resistance is critical for safety and durability. Fifth, many cryogenic valves are certified to stringent international standards (such as BS6364, ISO 28921), ensuring compliance with safety and industry regulations. Moreover, cryogenic valves can be automated with actuators for remote control, allowing integration into sophisticated process systems like gas separation, LNG processing, and aerospace fuel systems. In essence, they provide a critical balance of safety, durability, and performance when dealing with highly volatile cryogenic media under challenging operational conditions.

Cryogenic Valves FAQ

  • 1.What is a cryogenic valve?

    A valve designed to handle liquefied gases at extremely low temperatures.

  • 2.Are cryogenic valves leak-proof?

    Yes, they provide tight sealing to prevent gas loss or hazards.

  • 3.Why do cryogenic valves have long bonnets?

    To keep the stem warm and avoid freezing or frost build-up.

  • 4.Can cryogenic valves be automated?

    Yes, they support manual and automated actuation.

  • 5.Where are cryogenic valves used?

    LNG systems, medical gas supply, aerospace, and industrial gas plants.

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