Boleimu Valves

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Double Offset Flanged Telescopic Butterfly Valve

Short Description:

  • Nominal Size: NPS 2"~NPS 80"
  • Pressure Class: ANSI Class 150-300LB, JIS 10K, 20K
  • Operating Temperature: -40℃~+180℃
  • Design Standard: API 609
  • End Connection: Flanged
  • Operation: Handwheel, Worm Gear, Pneumatic Piston, Electric, Hydraulic Actuator
  • Body / Bonnet Material: WCB, CF8/CF8M, LCB/LCC, A890 4A, A890 5A, A890 6A and Monel
  • Test Standard: API 598
  • Product Detail

    Product Tags

    Product Description

    1. Double Offset Flanged Telescopic Butterfly Valve adds axial expansion compensation flange based on double offset flanged butterfly valve.

    2. Absorbs axial displacement caused by pipeline thermal expansion and contraction, releasing pipeline thermal stress.

    3. Disc separates from seat quickly at the instant of opening, reducing sealing surface friction and wear and extending service life.

    4. Metal to metal or metal soft combined sealing optional, covering wider temperature and pressure range.

    5. Suitable for water, steam and compressed air pipeline network systems.

    Features & Benefits

    1. Double Offset Flanged Telescopic Butterfly Valve adds axial expansion compensation flange based on double offset flanged butterfly valve.

    2. Absorbs axial displacement caused by pipeline thermal expansion and contraction, releasing pipeline thermal stress.

    3. Disc separates from seat quickly at the instant of opening, reducing sealing surface friction and wear and extending service life.

    4. Metal to metal or metal soft combined sealing optional, covering wider temperature and pressure range.

    5. Suitable for water, steam and compressed air pipeline network systems.


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