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Low temperature butterfly valve

Design code

Design Criteria：BS 6364, API 6D, ASME B16.34
Structure length：ASME B16. 10, API 609
Connection standard：ASME B16. 5
Test and inspection：API 598 ,API 6D ,BS 6364,ISO 15848, API 624,API 607, API 6FA, ISO 10497
Pressure-temperature：ASME B16. 34

  • Product Profile

    Ultra-low temperature butterfly valve with long neck cover structure, its purpose is to reduce the heat in the outside incoming device, prevent low temperature medium gasification, ensure the packing function parts above 0o C, make the packing can work normally, prevent the packing function frost or icing, lest the valve rod up and down to pull the packing, the design of the long neck valve cover is mainly the design of neck length, the neck length refers to the distance at the bottom of the packing letter to the surface of the sealing seat. Commonly used low-temperature materials are LCB, CF8, butterfly plate material is 1Cr18N9Ti.


  • Design Feature

    - Meet Low Temperature international standards and user requirements

    - Use the right-angle anti-friction sealing technique

    - Comply with low emission levels according with ISO15848 & API 622  

    - Full compliant with API 6D burst stem design

    - Valve design is optimized to reach the maximum flow rate

    - Elastic metal-to-metal sealing technique

    - Scale series: 3"~ 60"

    - pressure rating:Class150~Class900

    - Top-mounted design for easy online repair

    - Bidirectional torque valve seat design

    - Fire test complies with API 607 requirements

    - Torque seal to achieve zero leakage

    - Elastic valve seats in accordance with the API 598 and API 6D

    - The seat is a carbide



  • Data download

    Low temperature butterfly valve Data.pdf