ಬೆಲ್ಲೋಸ್ ಸೀಲ್ಡ್ ಗ್ಲೋಬ್ ವಾಲ್ವ್ | PN16-PN40 | ಶೂನ್ಯ ಸೋರಿಕೆ | ಉಗಿ & ಹೈ-ಟೆಂಪ್ ಸೇವೆ

ಉತ್ಪನ್ನ ಅವಲೋಕನ

ದಿಬೆಲ್ಲೋಸ್ ಸೀಲ್ಡ್ ಗ್ಲೋಬ್ ವಾಲ್ವ್ is a high-performance industrial valve designed for applications wherezero stem leakage is critical. Unlike conventional globe valves that rely solely on packing seals—which degrade over time and lead to fugitive emissions—this valve incorporates ametal bellows assembly as the primary stem seal, creating a permanent barrier between the process fluid and the atmosphere.

The bellows sealed globe valve is theಆದ್ಯತೆಯ ಪರಿಹಾರ for steam systems, high-temperature thermal oil circuits, toxic or flammable media, and applications subject to strict environmental emission regulations. With a robust construction and dual sealing design (bellows + packing), this valve deliversmaintenance-free operation and significantlyreduces energy loss caused by leakage.

ಕವಾಟದ ದೇಹವು ಲಭ್ಯವಿದೆWCB cast steel ಮತ್ತುಸ್ಟೇನ್ಲೆಸ್ ಸ್ಟೀಲ್, ಗಟ್ಟಿಮುಟ್ಟಾದ ಮುಖಗಳನ್ನು ಮುಚ್ಚುವುದರೊಂದಿಗೆCoCr ಮಿಶ್ರಲೋಹ ವಿಸ್ತೃತ ಸೇವಾ ಜೀವನಕ್ಕಾಗಿ. The stem is subjected tonitriding treatment for enhanced wear and corrosion resistance. The valve complies withAPI 623, ಇಂದ 3356, ಮತ್ತುGB/T 12235 ಮಾನದಂಡಗಳು.

ಬೆಲ್ಲೋಸ್ ಸೀಲ್ಡ್ ಗ್ಲೋಬ್ ವಾಲ್ವ್

ಕೆಲಸದ ತತ್ವ

The bellows sealed globe valve operates on theರೇಖೀಯ ಚಲನೆಯ ತತ್ವ common to all globe valves. ಹ್ಯಾಂಡ್‌ವೀಲ್ ಅನ್ನು ತಿರುಗಿಸುವುದು ಕಾಂಡವನ್ನು ತಿರುಗಿಸುತ್ತದೆ, ಇದು ಡಿಸ್ಕ್ ಅನ್ನು ಚಲಿಸುತ್ತದೆಲಂಬವಾಗಿ ಸ್ಥಾಯಿ ಆಸನ ಉಂಗುರದ ಕಡೆಗೆ ಅಥವಾ ದೂರದಲ್ಲಿ.

ಯಾವಾಗ ಡಿಸ್ಕ್ಆಸನವನ್ನು ಸಮೀಪಿಸುತ್ತಾನೆ → ಹರಿವಿನ ಪ್ರದೇಶ ಕಡಿಮೆಯಾಗುತ್ತದೆ → ಹರಿವು ಥ್ರೊಟಲ್ ಆಗಿದೆ

ಯಾವಾಗ ಡಿಸ್ಕ್ಆಸನದಿಂದ ದೂರ ಸರಿಯುತ್ತಾನೆ → ಹರಿವಿನ ಪ್ರದೇಶವು ಹೆಚ್ಚಾಗುತ್ತದೆ → ಹರಿವನ್ನು ಅನುಮತಿಸಲಾಗಿದೆ

ದಿcritical innovation is themetal bellows—an accordion-like stainless steel tube welded to the stem at the lower end and to the bonnet at the upper end. As the stem moves linearly, the bellowscompress and expand with negligible friction, maintaining aಸೋರಿಕೆ-ನಿರೋಧಕ ಸೀಲ್ without any sliding gaps.

This design completely eliminates thedynamic sealing gap between the stem and the bonnet—the primary leak path in conventional packing-sealed valves. The bellows is backed by asecondary graphite packing seal, ensuring zero leakage even in the unlikely event of bellows failure.

The valve features aback seat mechanism that provides an additional stem seal when the valve is fully open, further enhancing safety during maintenance.

ತಾಂತ್ರಿಕ ವಿಶೇಷಣಗಳು

ವಾಲ್ವ್ ದೇಹದ ನಿಯತಾಂಕಗಳು

ವಸ್ತು ಆಯ್ಕೆಗಳು

Design & Manufacturing Standards

ಬೆಲ್ಲೋಸ್ ಸೀಲ್ಡ್ ಗ್ಲೋಬ್ ವಾಲ್ವ್

ಪ್ರಮುಖ ಲಕ್ಷಣಗಳು

• 1. Zero Stem Leakage
  The metal bellows provides aಶಾಶ್ವತ, non-wearing seal between the stem and the bonnet. Unlike packing that requires periodic adjustment and replacement, the bellows maintains leak-tight integrity throughout the valve’s service life.
• 2. Dual Sealing Design (Bellows + Packing)
  ಎsecondary graphite packing serves as a backup seal. Even in the unlikely event of bellows failure, the packing prevents any leakage to the atmosphere, ensuring fail-safe operation.
• 3. Extended Service Life
  The bellows is designed for3,000+ cycles in standard service. ಸೀಲಿಂಗ್ ಮುಖಗಳು ಗಟ್ಟಿಯಾಗಿವೆCoCr ಮಿಶ್ರಲೋಹ ಮತ್ತು ನಿಖರವಾದ ನೆಲ, providing exceptional wear resistance and long-term reliability.
• 4. Energy Savings & ಪರಿಸರ ರಕ್ಷಣೆ
  By eliminating fugitive emissions, the valvereduces energy loss ಮತ್ತುprevents product loss, contributing to lower operating costs and compliance with strict environmental regulations.
• 5. Maintenance-Free Operation
  The robust bellows seal design eliminates the need for periodic packing adjustment or replacement, significantlyreducing maintenance costs and downtime.
• 6. Stem Nitriding Treatment
  The valve stem is subjected tonitriding treatment, enhancing surface hardness, ಪ್ರತಿರೋಧ ಧರಿಸುತ್ತಾರೆ, and corrosion resistance for extended durability.
• 7. Visual Position Indicator
  The valve features anintuitive stem lift position indicator, allowing operators to easily verify whether the valve is open or closed.
• 8. Non-Rotating Stem Design
  The non-rotating stem preventstorsion of the bellows during operation, extending bellows life and ensuring reliable sealing.

ಅಪ್ಲಿಕೇಶನ್‌ಗಳು

The bellows sealed globe valve is thepreferred choice for applications wherezero leakage is non-negotiable—particularly in steam systems, hazardous media handling, and high-temperature industrial processes.

ಪ್ರಮುಖ ಮಾಧ್ಯಮ ಹೊಂದಾಣಿಕೆ:

• ಉಗಿ & Condensate
• Thermal Oil
• Toxic & Flammable Fluids
• High-Purity Gases & Liquids
• ನೀರು
• Compressed Air & Other Gases

Bellows Sealed vs. Conventional Globe Valve

ಪ್ಯಾಕೇಜಿಂಗ್ & ಶಿಪ್ಪಿಂಗ್

ಪಾವತಿ ವಿಧಾನಗಳು

ಟಿ/ಟಿ, ದೃಷ್ಟಿಯಲ್ಲಿ L/C, ವೆಸ್ಟರ್ನ್ ಯೂನಿಯನ್, ಪೇಪಾಲ್, ಕ್ರೆಡಿಟ್ ಕಾರ್ಡ್, ಇತ್ಯಾದಿ.

ಕಂಪನಿಯ ವಿವರ

ಲುವೊಯಾಂಗ್ ಡಾಟಾಂಗ್ ಎನರ್ಜಿ ಟೆಕ್ ಕಂ., ಲಿಮಿಟೆಡ್. ಕೈಗಾರಿಕಾ ಕವಾಟಗಳು ಮತ್ತು ಪೈಪಿಂಗ್ ಸಿಸ್ಟಮ್ ಪರಿಹಾರಗಳ ವೃತ್ತಿಪರ ಪೂರೈಕೆದಾರ. ಕೈಗಾರಿಕಾ ಹರಿವಿನ ನಿಯಂತ್ರಣ ಉದ್ಯಮದಲ್ಲಿ ವರ್ಷಗಳ ಅನುಭವದೊಂದಿಗೆ, ವಿಶ್ವಾದ್ಯಂತ ಗ್ರಾಹಕರಿಗೆ ಉತ್ತಮ ಗುಣಮಟ್ಟದ ಉತ್ಪನ್ನಗಳು ಮತ್ತು ತಾಂತ್ರಿಕ ಬೆಂಬಲವನ್ನು ಒದಗಿಸಲು ನಾವು ಬದ್ಧರಾಗಿದ್ದೇವೆ. ನಮ್ಮ ಉತ್ಪನ್ನ ಶ್ರೇಣಿಯು ಗೇಟ್ ಕವಾಟಗಳನ್ನು ಒಳಗೊಂಡಿದೆ, ಗ್ಲೋಬ್ ಕವಾಟಗಳು, ಚೆಂಡು ಕವಾಟಗಳು, butterfly valves, bellows sealed valves, and actuated valves for various industrial applications.

We maintain strict quality control throughout the manufacturing process and ensure that all products meet international standards including API, ಇಂದ, and GB. Our technical team is available to provide selection guidance, application engineering support, and after-sales service.

ಬೆಲ್ಲೋಸ್ ಸೀಲ್ಡ್ ಗ್ಲೋಬ್ ವಾಲ್ವ್

FAQ

Q1: What is the maximum temperature and pressure rating for this valve?

English: The valve is rated for temperatures from-29°C to +425°C and pressure classes fromPN16 to PN40 (1.6MPa – 4.0MPa). For higher temperature or pressure applications, please consult our technical team for special material options.

Q2: What makes a bellows sealed globe valve different from a standard globe valve?

English: The key difference is themetal bellows that replaces the conventional packing as the primary stem seal. This eliminates the dynamic sealing gap between the stem and bonnet, providingzero leakage to the atmosphere. While standard globe valves rely solely on packing that degrades over time, bellows sealed valves offer maintenance-free operation and significantly longer service life.

Q3: Can this valve be used for throttling/regulating service?

English: ಹೌದು. ಗ್ಲೋಬ್ ಕವಾಟದಂತೆ, it isinherently designed for throttling and flow regulation. The disc moves perpendicularly to the seat, allowing precise control over flow rate. For applications requiring frequent throttling, we recommend selecting thebalanced disc option to reduce operating torque.

Q4: What is the expected bellows service life?

English: The bellows is designed for3,000+ operating cycles in standard service. The actual service life depends on operating conditions including temperature, ಒತ್ತಡ, cycling frequency, and media characteristics. The double-ply bellows construction provides enhanced reliability, and the non-rotating stem design prevents torsion damage to the bellows.

Q5: What standards does this valve comply with?

English: The valve complies withAPI 623 (design standard for globe valves), MSS SP-117 (bellows seal standard), ಇಂದ 3356 (German standard), ಮತ್ತುGB/T 12235 (Chinese national standard). It is alsoSIL 3 ready for functional safety applications and can be supplied withISO 15848 certification for fugitive emissions.