Pneumatic PPH Flange Diaphragm Valve

Pneumatic PPH Flange Diaphragm Valve

The Pneumatic PPH Flanged Diaphragm Valve is an essential component for industrial automation, specializing in the flow regulation of the most challenging fluids. It features a body constructed from corrosion-resistant PPH (Polypropylene Homopolymer) and a similarly resistant elastic diaphragm, ensuring longevity and reliability in harsh chemical service.

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      Description

      The pneumatic diaphragm valve utilizes the elastic diaphragm as the primary throttling element. Critically, it operates without a traditional stuffing box/gland packing structure, which eliminates a common failure point and guarantees zero external leakage, making it exceptionally safe for hazardous applications.

      Product Features

      • Superior Flow Dynamics: The valve body is designed with a smooth, streamlined flow channel, which dramatically reduces fluid resistance and ensures both high flow capacity and efficient media transfer.

      • Zero External Leakage: By eliminating the conventional gland packing, the valve provides a definitive, maintenance-free seal, preventing the escape of toxic or corrosive media.

      • Enhanced Safety Profile: Inherently built with fireproof and explosion-proof advantages, adding a necessary layer of safety when handling volatile substances.

      • Robust Materiality: Built with a corrosion-resistant PPH body that is chemically impervious to strong acids and alkalis.

      Material Table

      NO.ComponentMaterial
      1BodyPPH
      2BonnetPPH
      3DiaphragmEPDM+F46
      4DiscUPVC
      5CylinderAluminum alloy
      6PistonAluminum alloy
      7StemStainless steel 304 / 45#
      8Way of connectionFlange

      shape control data

      DNLDD1 (HG)D1 (JIS)D1 (DIN)D1 (ANSI)nϕdAHValve Weight (KG)
      1512595657065604141102152
      20135105757575704141102202.3
      25145115859085804141102252.5
      321501351004181402403
      401801451101051101004181702855
      502101601251201251204181703078
      6525018014514014514041820032713
      8030019516015016015281823039016
      10035021518017518019081826047024
      12540024521021021021681831063730
      150480280240240240240823370
      200570335295290295298823490

      Application Areas

       

      Due to its unique design and robust materials, this valve is widely deployed for demanding flow regulation across numerous industrial sectors:

      • Extreme Chemical Service: Controlling strong acids, strong alkalis, and highly corrosive media in chemical plants.

      • Difficult Media Handling: Successfully regulates fluids that are high-viscosity, or those that contain particles, granules, or fibers, which can damage traditional valve seats.

      • Critical Safety & Purity: Used for managing toxic fluids and in processes where the media is not permitted to be contaminated by external valve components.

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