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编号 :

DVH Series High-Pressure Diaphragm Valves

● No internal threads or springs
● 3500 psig pressure rating at ambient temperature
● Diaphragm material：Ni-Co alloy/UNS R30003
● Individual helium mass spectrometer leak testing per valve
● ~1¾turns from fully open to closed position

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DVH Series High-Pressure Diaphragm Valves

Product Inquiry
  • Product Description
  • Technical specification

    Introduction

    Achieving ultra-low leakage rates through a diaphragm-type hard-sealed structure, the all-metal housing eliminates packing while incorporating no internal threads or springs to ensure high cleanliness, operational stability, and extended lifespan. with a pressure rating of 3500 psig at ambient temperature, this valve is ideal for applications demanding stringent cleanliness and pressure tolerance.

     

     

  • Technical specification

    Operating Pressure：

    Vacuum to 3500 psig

    Flow Coefficient (cv)：

    0.3

    Operating Temperature：

    -73℃-121℃

    Internal Leakage Rate：

    ≤ 1x10-11 Pa.m³/sec.He

    External Leakage Rate：

    ≤ 1x10-11 Pa.m³/sec.He

    Internal Surface Roughness：

    Ra ≤ 0.13µm

     

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