Diaphragm Valve

Diaphragm valve is a valve that opens and closes by pressing a flexible diaphragm. Its core feature is that the fluid channel is completely isolated from the driving components, relying on diaphragm deformation to compress the valve body and seal the dam seat, without leakage risk, especially suitable for corrosive, viscous or high-purity media.

  • Maintain convenience
  • Safety adaptability
  • Corrosion resistance and wear resistance
  • Compact structure optimization
  • High pressure sealing reliability
  • Ultra precision flow regulation
Maintain convenience
  • 01
    Modular valve core component
    The integrated valve disc stem structure only requires replacement of vulnerable parts after damage, reducing maintenance costs by 70%.
  • 02
    Tool free disassembly design
    The card sleeve type connection structure can be quickly disassembled without the need for specialized tools.
Safety adaptability
  • 01
    Fire and Explosion Proof Certification
    Compliant with API 607 fire protection standard, the valve stem anti flying structure avoids the risk of high pressure impact.
  • 02
    Multi condition compatibility
    Supports a temperature range of -196 ℃ to 450 ℃, suitable for extreme media such as liquid oxygen and high-temperature steam.
Corrosion resistance and wear resistance
  • 01
    Preferred anti oxygen corrosion material
    The valve body is made of 316 stainless steel and nickel based alloy, which is resistant to acid and alkali corrosion (pH 2-12) and extends the service life of chemical media scenarios.
  • 02
    Mirror polishing channel
    The surface roughness Ra of the inner cavity is ≤ 0.4 μ m, reducing particle adhesion and preventing medium contamination.
Compact structure optimization
  • 01
    Angular channel design
    The right angle valve body saves 90 ° elbow space and is suitable for narrow environments such as ship engine compartments and aviation hydraulic systems.
  • 02
    Lightweight valve body
    The weight of the stainless steel valve body is 60% lighter than that of the same specification gate valve, reducing the support load of the pipeline.
High pressure sealing reliability
  • 01
    Hard sealing structure
    The surface of the valve disc is plated with hard chromium or welded with cobalt based alloy, with a sealing surface hardness of HRC50 or above, a maximum pressure resistance of 32MPa (PN320), and a leakage rate of ≤ 10 ⁻⁶ cc/s.
  • 02
    Multiple sealing design
    The double sealing structure of corrugated tube and graphite packing prevents valve stem leakage and is suitable for flammable and explosive media.
Ultra precision flow regulation
  • 01
    Micron level adjustment accuracy
    Needle shaped valve core (cone angle usually 2 ° -15 °) combined with fine threaded valve stem (pitch 0.5-1mm), the displacement accuracy of the valve core reaches 0.01mm, achieving micro flow control of 0.1-10L/min, suitable for laboratory instrument and meter calibration.
  • 02
    Linear flow characteristics
    The clearance between the conical surface of the valve core and the valve seat varies linearly, ensuring stable regulation under low flow conditions (such as precise control of flame cutting temperature).
Performance Specifications & Dimensions
Valve Application
  • Oil & Gas Transportation

    Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.

  • Chemical Raw Material Control

    The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.

  • High Temperature SteamPipeline in Power System

    High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.

  • Other Industries

    Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.

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