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Freture Techno Private Limited
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  5. Freture - Bellow Seal Globe Valve

Freture - Bellow Seal Globe Valve

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A Bellow Seal Globe Valve is a construction that is a kind of control valve that seals the valve stem components using bellow. We are leading Bellow Seal Globe Valve manufacturer in Mumbai, India. A Bellow is contained within the valve, and the lower end of the stainless-steel / nickel alloy Bellow is welded to the stem to prevent the stem from being eroded by system fluid. The other end is inserted between the valve`s body and cover to form a permanent seal. This double seal structure prevents leakage; in the event that the bellow collapse, the stem packaging will prevent further leakage. The bellow are welded to the valve stem to provide steady operation and to eliminate valve stem vibration caused by the valve insert movement.

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  • End Connection: Flange (B16.5) / Butt Weld (B16.25) / Socket Weld (B-16.11)
  • Size: 15 NB - 600 NB
  • Pressure Rating: #150 - #1500
  • Temperature Range: -190° C to 350 ° C
  • MOC: Carbon Steel / Stainless Steel / Alloy
  • Design Standard: MSS SP-117 / API 623
  • Cycle Life: 3000 - 5000 - 10000 Cycle
  • Face to Face: ASME B16.10 Rev 2009
  • Fire safe design: API 6FA
  • Testing:  API 598 Rev 2009 / ISO 15848
  • Documents: BS/EN 10204-3.1 REV 2019
  1. No Bellow Torsion.
    The non-rotating stem prevents Bellow  Torsion and guarantees high cycle life on all Bellow-Seal Valves.
  2. Bellow with long cycle life.
    Designed for High pressure/temperature applications and successfully tested as per MSS SP-117 / API 598.
  3. Minimal Torque.
    Because of the non-rotating stem, a central grease fitting is used to lubricate the stem nut and, for high-pressure valves, a stem thrust bearing.
  4. Stem / Gland Seals
    a. When open, the backseat (stem bevel) guards against line pressure.
    b. Gland Packing (Graphite / PTFE)
  5. Zero Maintenance Operating and maintenance costs are significantly decreased as a result of the longer service life.
  6. Hermetic Sealed (100% Emission Free).
    In most designs, Body-Bonnet welds create a hermetically sealed vessel. (As per requirement)