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An Insulated Butterfly Valve, also known as a 'Jacketed Butterfly Valve' or 'Steam Traced Butterfly Valve', is a highly specialized type of industrial valve designed to maintain, raise, or control the temperature of the process media flowing through a pipeline. Its primary function is to prevent the congealing, solidification, or unwanted cooling of viscous fluids like heavy crude oil, bitumen, resins, wax, chocolate, or various chemicals.

  •    Description   

    An Insulated Butterfly Valve, also known as a 'Jacketed Butterfly Valve' or 'Steam Traced Butterfly Valve', is a highly specialized type of industrial valve designed to maintain, raise, or control the temperature of the process media flowing through a pipeline. Its primary function is to prevent the congealing, solidification, or unwanted cooling of viscous fluids like heavy crude oil, bitumen, resins, wax, chocolate, or various chemicals.

     

       Design and Construction   

    The defining feature of this valve is an external jacket that envelops the valve's body. This jacket creates a sealed annulus or cavity around the main flow passage. The standard components include:

    1.  Valve Body with Jacket: The core element. The jacket is typically integrally cast or welded onto the standard butterfly valve body. Common materials include carbon steel, stainless steel (SS304, SS316), and other alloys compatible with both the process fluid and the heating/cooling medium.
    2.  Heating/Cooling Medium Connections: The jacket has inlet and outlet ports through which a thermal transfer fluid is circulated. This is most commonly steam, hot oil, or hot water for heating. For cooling applications, chilled water or glycol solutions can be used.
    3.  Disc: The closure element, often designed with a lug or wafer style. It is engineered to provide a tight seal without interfering with the jacket.
    4.  Stem: A shaft connected to the disc, which is actuated to open or close the valve.
    5.  Seat: Provides a bubble-tight shut-off. Materials like PTFE (Teflon) or reinforced PTFE are standard for their resilience and chemical compatibility.
    6.  Actuator: Can be manual (lever, gearbox), pneumatic, electric, or hydraulic, allowing for remote operation and integration into process control systems.

     

       Working Principle   

    The valve operates on the standard principle of a butterfly valve: a quarter-turn (90°) rotation of the disc moves it from a fully open to a fully closed position, controlling the flow. The insulating function is separate:

    The thermal medium (e.g., steam) is continuously circulated through the jacket surrounding the valve body. This flow of heat energy transfers through the valve body wall and into the process media, compensating for heat loss to the ambient environment and ensuring the fluid remains at its desired viscosity and temperature as it passes through the valve. This prevents freezing or solidification that could seize the disc or block the pipeline.

     

       Key Advantages   

    • Maintains Fluid Viscosity: Ensures smooth flow of media that solidifies at ambient temperatures.
    • Prevents Heat Loss: Crucial for energy efficiency in processes where temperature is critical.
    • Process Integrity: Avoids product contamination or deviation caused by temperature fluctuations at the valve point.
    • Operational Reliability: Eliminates valve seizure and pipeline blockages, reducing downtime and maintenance costs.
    • Safety: Mitigates risks associated with trying to clear a blocked valve in hazardous service.

     

       Primary Applications   

    Insulated butterfly valves are indispensable in industries where temperature maintenance is paramount:

    • Oil & Gas / Petrochemical: Transporting heavy crude oil, asphalt, bitumen, sulfur, and paraffin.
    • Chemical Processing: Handling polymers, resins, molten sulfur, and various crystalline or viscous chemicals.
    • Food & Beverage: Conveying chocolate, fats, shortenings, syrups, and other temperature-sensitive consumables.
    • Pharmaceutical: Managing APIs (Active Pharmaceutical Ingredients) and bases that require strict temperature control.
    • Paints & Coatings: Transferring viscous resins, adhesives, and paints.

    In summary, the insulated butterfly valve is a critical engineering solution that combines the efficient flow control of a standard butterfly valve with precise thermal management, ensuring process continuity, safety, and efficiency in demanding industrial applications.

Thermal Insulation Ball Valves
A Thermal Insulation Ball Valve, commonly referred to as a jacketed ball valve or steam-traced ball valve, is a specialized fluid control device engineered to maintain the temperature of the media within the pipeline. It is designed to prevent media solidification, crystallization, or excessive viscosity increase that can occur due to heat loss in process environments, particularly those handling high-viscosity fluids like heavy oils, resins, molten sulfur, or certain chemicals.
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Cryogenic Repairable Butterfly Valve
A cryogenic side-entry with Maintenance window, repairable butterfly valve is an advanced quarter-turn valve engineered for critical isolation duties in ultra-low temperature applications, typically ranging from -50°C (-58°F) down to -196°C (-321°F) and beyond. Its defining characteristic is a side-entry body with Maintenance window that allows for full in-line maintenance and replacement of internal components without requiring the valve to be removed from the pipeline.
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A cryogenic butterfly valve is an engineered quarter-turn valve specifically designed to regulate or isolate the flow of media in piping systems operating at extremely low temperatures, typically from -50°C (-58°F) down to -196°C (-321°F). These valves are characterized by their compact design, lightweight construction, and rapid operation, making them an efficient and cost-effective solution for a wide range of cryogenic applications.
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Cryogenic Gate Valve
A cryogenic gate valve is a specialized type of industrial valve designed to isolate or permit fluid flow in piping systems handling media at extremely low temperatures, typically ranging from -50°C (-58°F) down to -196°C (-321°F) and even lower. These valves are critical components in industries such as Liquefied Natural Gas (LNG), industrial gases, aerospace, and chemical processing, where reliable shut-off under cryogenic conditions is paramount for safety and operational efficiency.
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Dual Plate Check Valve
Our Dual Plate Check Valve is an advanced, highly efficient flow control solution designed to prevent reverse flow and protect critical system components in piping networks. Engineered for superior performance, it features two spring-assisted semi-circular plates (discs) hinged on a central pin. This compact, wafer-style/lug-style/flange-style design is engineered to fit securely between standard ANSI/ASME or DIN or GB/T flanges,
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Lined Dual Plate Wafer Check Valve
Our Lined Dual Plate Wafer Check Valve is an engineered solution designed specifically for handling highly corrosive, abrasive, or chemically aggressive media in demanding industrial processes. This valve integrates the space-saving, efficient design of a standard dual plate check valve with a complete internal lining of inert fluoropolymer materials, such as PTFE (Polytetrafluoroethylene) or PFA (Perfluoroalkoxy). This construction creates a robust barrier, protecting the metallic valve body fr
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Insulated Butterfly Valve
An Insulated Butterfly Valve, also known as a 'Jacketed Butterfly Valve' or 'Steam Traced Butterfly Valve', is a highly specialized type of industrial valve designed to maintain, raise, or control the temperature of the process media flowing through a pipeline. Its primary function is to prevent the congealing, solidification, or unwanted cooling of viscous fluids like heavy crude oil, bitumen, resins, wax, chocolate, or various chemicals.
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Big Size Metal Seal Butterflly Valve
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1. The three-eccentric design provides instant contact or disconnection of the disc from the saddle, which guarantees zero wear and zero leakage.
2. The sealing ring is fully integrated into the drive, which allows to carry out replacement without dismantling the whole valve, the...
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ANSI Butterfly Valve
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1. The three-eccentric design provides instant contact or disconnection of the disc from the saddle, which guarantees zero wear and zero leakage.
2. The sealing ring is fully integrated into the drive, which allows to carry out replacement without dismantling the whole valve, the...
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High Pressure Butterfly Valve
1.  The three-eccentric design provides instant contact or disconnection of the disc from the saddle, which guarantees zero wear and zero leakage.
2.  The sealing ring is fully integrated into the drive, allowing replacement without dismantling the entire valve, significantly reducing maintenance costs.
3.  The sealing ring consists of laminated stainless steel metal plates and flexible graphite plates (graphito-rubber, asbestos-rubber, etc.), combining the advantages of metal rigid sealing an
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Big Size Rubber LIned Butterfly Valve
1.  The central line design provides instant contact or stable seal for both sides, which guarantees zero wear and zero leakage.
2.  The sealing ring consists of rubber, providing excellent sealing properties at both low and high flow rating.
3.  The selection of suitable materials makes the valve resistant to low/high flow rating and corrosion.
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Slow-Closing Damper Check Valve
Our Series HQ Slow-Closing Damper Check Valve is an engineered solution designed to prevent destructive water hammer in pump discharge and high-head fluid systems. Unlike standard check valves that close abruptly upon flow reversal, this valve features an external weighted lever and damping system that ensures a controlled, two-stage closing sequence. This critical functionality protects pipelines, pumps, and connected equipment from dangerous pressure surges (slam), significantly enhancing syst
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Forged Steel Small-Bore Valves Series
Our Series FSV-SB Forged Steel Valves are engineered for superior performance in high-pressure, high-temperature, and critical service applications where reliability is non-negotiable. Designed for small-bore piping systems (NPS ½" to 2"), these valves leverage the inherent strength of forged construction to provide exceptional integrity, leak-proof operation, and extended service life in the most demanding environments, including oil and gas, petrochemical, power generation, and refining.
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Y Type Strainer
A Y-type Strainer, also known as a Y-Filter, is an essential industrial component designed to remove solid particles from fluids (liquids or gases) in pipeline systems. Its name derives from its distinctive Y-shaped configuration, which allows for efficient filtration while minimizing pressure drop.
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Check Valve
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1. Using solidwork and Finite Element Analysis design tools, optimize working parts moving action.
2. COSMOSXpress software help engineer to optimize valve's structure.
3. Flow simulation simulate medium's flowing action, heat transfer process, and help engineer to decrease cavation, make less flowing resistance.
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Fire Arrester
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High-Temperature Nickel Alloy Globe Valves
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Due to structural characteristics, globe valves exhibit high flow resistance and significant pressure drop.
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High-Temperature Nickel Alloy Check Valves
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To meet high requirements for sealing, reliability, and safety, the valve body is manufactured using integral forging or forging with welding from nickel alloy.
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The valve design incorporates a spring-assisted quick closure mechanism to prevent reverse flow and water hammer in high-temperature systems.
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PTFE Lined Ball Valve
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Parallel Gate Valve
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Basket Type Strainer
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2. PN16/25/40, Class 150/300.
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5. Easy to clean and flushing.
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Gate Valve
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Metal to Metal Seal Ball Valve
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Floating Ball Valve
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Welding End Ball Valve
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Wear-resistant ball valve
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ANSI Check Valve
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1. Using solidwork and Finite Element Analysis design tools, optimize working parts moving action.
2. COSMOSXpress software help engineer to optimize valve's structure.
3. Flow simulation simulate medium's flowing action, heat transfer process, and help engineer to decrease cavation, make less flowing resistance.
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ANSI Gate Valve
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1. Using solidwork and Finite Element Analysis design tools, optimize working parts moving action.
2. COSMOSXpress software help engineer to optimize valve's structure.
3. Flow simulation simulate medium's flowing action, heat transfer process, and help engineer to decrease cavation, make less flowing resistance.
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ANSI Globe Valve
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1. Using solidwork and Finite Element Analysis design tools, optimize working parts moving action.
2. COSMOSXpress software help engineer to optimize valve's structure.
3. Flow simulation simulate medium's flowing action, heat transfer process, and help engineer to decrease cavation, make less flowing resistance.
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Anti-Flushing Globe Valve
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1. The product design complies with the NB/T 47044 and ASME B16.34 standards.
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Temperature and Pressure Reduction Units
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High Pressure Forged Check Valve
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Power Station Drainage Ball Valve - Integral Type
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High Pressure Drain Water Ball Valve
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PowerStation Globe Valve
Product Breif:
1. The product design complies with standards NB/T 47044 and ASME B16.34.
2. The stem undergoes quenching and nitriding treatment, providing heat resistance, wear resistance, and high corrosion resistance.
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4. The seat and disc sealing surfaces are overlay-welded with cobalt-based hard alloys (e.g., Stellite), ensuring zero leakage under extreme conditions.
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Cryogenic Service Ball Valve
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Steam Extraction Check Valve
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PFA lined Diaphragm Valve
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PTFE lined Butterfly Valve
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Minimum Flow Control Globe Valve
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Triple Offset Butterfly Valve
Products breif:
1. The three-eccentric design provides instant contact or disconnection of the disc from the saddle, which guarantees zero wear and zero leakage.
2. The sealing ring is fully integrated into the drive, which allows to carry out replacement without dismantling the whole valve, the...
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