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BS4-Bellows-Sealed Valves


Hikelok BS4 series bellows-sealed valves are available with variety of end connections.Working pressure is up to 1000 psig (68.9 bar),working temperature is from -80℉ to 600 ℉ (-62 ℃ to 315 ℃). Isolate system fluids and achieve reliable, leak-tight performance with Hikelok BS4 series bellows-sealed valves which use a packless design and a gasketed or welded seal. They are ideal for applications where the seal to atmosphere is critical, and we offer multiple options for general and high-purity service.


  • Maximum working pressure up to 1000 psig (68.9 bar)

  • Working temperature from -80℉ to 600 ℉ (-62 ℃ to 315 ℃)

  • Flow coefficients (Cv) from 0.11 to 0.28

  • Variety of end connections

  • 316 stainles steel body material

  • Panel and bottom mounting

  • Precion-formed metal bellows providers reliable seal

  • Nonrotating stem tip

  • Welded body to bonnet seal

  • Every valve is tested with helium for 10s to a maximum leak rate of 4×10-9 std cm3/s


  • Precision-formed metal bellows for reliability

  • Nonrotating stem tip for increased shutoff cycle life

  • Panel and bottom mounting

  • 100% factory tested

More Options

  • Optional SS316,stellite tip material

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