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    Butterfly Valve
    Check Valve
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    Beijing Haoli Group
    Cast heavy equipment with ingenuity, be an expert in industrial fluid control technology

    The headquarter of the group is located in Daxing District, Beijing, which is closely adjacent to Daxing International Capital Airport, in Shanghai, Shanxi, There are modern factories and industrial service outlets in Hebei. With product automation, intelligent production line and mature technology, Haoli Group has been highly recognized by customers. It has become a high-performance industrial valve manufacturing, intelligent actuator R&D and manufacturing Service platform construction, digital production line design and development, pipeline control product research and development design, intelligent equipment research and development and other services in one of the multi-category, multi-field, multi-creative, multi-connected modern technology enterprises, Haoli products are sold well in China and exported to abroad To Russia, Germany, Canada and more than 30 countries and regions...

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    Focus on high-performance valve manufacturing
  • D261 Series Butterfly Valve
    D261 series butterfly valve is a one-shaft, pinless, backrest-less, single-clip centerline soft-seal butterfly valve with a nominal pressure of PN25 kg. There are totally 9 specifications ranging from DN50 to DN300.
    Drag and drop products for rotating display
    1. The brass seal support pad at the shaft hole of the valve seat, and the O-ring groove is processed in the copper ring, which can effectively prevent the medium from leaking from the shaft hole
    2. The valve stem is connected to the butterfly plate with a pinless vertical flat structure, which can transmit large torque, and when the valve is closed, the radial maximum part of the valve stem bears pressure, which greatly reduces the displacement of the butterfly plate after being compressed
      D270 Series Butterfly Valve
      D270 series butterfly valve is a two-section shaft pinless type non-backrest clamp center line soft seal butterfly valve with a nominal pressure of PN10/PN16 kg. There are totally 14 specifications ranging from DN50 to DN600. The dimensions of side flange
      Drag and drop products for rotating display
      1. Face grooves help prevent seat buckling due to improper installation.
      2. The end face of the valve seat adopts a large arc and a large wide edge, which can ensure the sealing performance between the valve and the flange surface of the pipeline.
      3. The spherical butterfly plate has a smooth transition when opening and closing, reducing friction.
      4. The narrow sealing band can reduce the contact time between the butterfly plate and the valve seat during the opening and closing process of the valve.
      5. There is an annular protrusion at the shaft hole of the valve seat, which can effectively prevent the medium from leaking from the shaft hole.
      6. The double grooves in the bore can greatly improve the creep deformation of the valve seat during the opening and closing process of the valve.
      7. Seat without backrest, easy to assemble and easy to replace.
        H77X series check valve
        H77 series check valve is a wafer connection check valve with a nominal pressure of PN16 kg. There are totally 9 specifications ranging from DN50 to DN300. This series of check valves is composed of valve body, valve disc, valve stem, spring and other par
        Drag and drop products for rotating display
        1. The rubber inside the valve body is a whole, the rubber sealing surface will not fall off, and the service life is longer and more reliable.
        2. The rubber on the end face is higher than the valve body, which can realize the sealing with the flange surface of the pipeline, without using additional flange sealing gaskets.
        3. The upper valve stem not only plays the role of suspending the spring, but also prevents the valve plate from rotating more than 90°, thereby protecting the spring and prolonging the service life of the spring.
        4. Multi-size PTFE adjusting pads make the valve plate fixed in the center of the valve body without axial displacement.
        5. The size compatibility design with the flange connection of the pipeline meets the connection requirements of the national standard, American standard, Japanese standard and other multi-national flanges.
        6. The valve adopts the stem limit sealing structure of set screw and rubber sealing block, which is easy to disassemble and reliable in sealing.
        7. The valve adopts the stem limit sealing structure of set screw and rubber sealing block, which is easy to disassemble and reliable in sealing.
          The brass seal support pad at the shaft hole of the valve seat, and the O-ring groove is processed in the copper ring, which can effectively prevent the medium from leaking from the shaft hole
          The valve stem is connected to the butterfly plate with a pinless vertical flat structure, which can transmit large torque, and when the valve is closed, the radial maximum part of the valve stem bears pressure, which greatly reduces the displacement of the butterfly plate after being compressed
          Face grooves help prevent seat buckling due to improper installation.
          The end face of the valve seat adopts a large arc and a large wide edge, which can ensure the sealing performance between the valve and the flange surface of the pipeline.
          The spherical butterfly plate has a smooth transition when opening and closing, reducing friction.
          The narrow sealing band can reduce the contact time between the butterfly plate and the valve seat during the opening and closing process of the valve.
          There is an annular protrusion at the shaft hole of the valve seat, which can effectively prevent the medium from leaking from the shaft hole.
          The double grooves in the bore can greatly improve the creep deformation of the valve seat during the opening and closing process of the valve.
          Seat without backrest, easy to assemble and easy to replace.
          The rubber inside the valve body is a whole, the rubber sealing surface will not fall off, and the service life is longer and more reliable.
          The rubber on the end face is higher than the valve body, which can realize the sealing with the flange surface of the pipeline, without using additional flange sealing gaskets.
          The upper valve stem not only plays the role of suspending the spring, but also prevents the valve plate from rotating more than 90°, thereby protecting the spring and prolonging the service life of the spring.
          Multi-size PTFE adjusting pads make the valve plate fixed in the center of the valve body without axial displacement.
          The size compatibility design with the flange connection of the pipeline meets the connection requirements of the national standard, American standard, Japanese standard and other multi-national flanges.
          The valve adopts the stem limit sealing structure of set screw and rubber sealing block, which is easy to disassemble and reliable in sealing.
          The valve adopts the stem limit sealing structure of set screw and rubber sealing block, which is easy to disassemble and reliable in sealing.
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