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  4. 900X emergency shut off valve
  • 900X emergency shut off valve

900X emergency shut off valve

  • Product Item:900X
  • Pressure Rating: PN10. PN16. PN25/Class150
  • Size Range: DN20mm-DN800mm (3/4" - 32")
  • Media:Water
  • Test and inspection: GB/T 13927 API598
  • 900X emergency shut off valve
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    Description

    900X emergency shut off valve


    Working principle of 900X emergency shut-off valve:
    900X emergency shut-off valve is a kind of valve used to allocate the direction of water supply in parallel water supply system of fire water and domestic water. In case of fire, a large amount of water is urgently needed for fire fighting. Domestic water should be cut off immediately to ensure sufficient water for fire fighting; When the fire stop water pressure decreases, the valve will automatically open, in a normally open state, to restore domestic water supply.

    Product features of 900X emergency shut-off valve:
    1. The valve has high control sensitivity, safety and reliability, simple debugging and long service life.
    2. The valve body adopts full channel, direct current and streamline design. The hydraulic loss is small and the energy saving effect is good.
    3. The valve makes it unnecessary for the system to set up a separate fire water supply network, which greatly saves the construction cost and water consumption.
    Main technical parameters of 900X emergency shut-off valve:

    Nominal pressure (MPa)
    Shell test pressure (MPa)
    Sealing test pressure (MPa)
    Applicable medium
    Medium temperature (℃)
    1.0 1.5 1.1 Water
    0~80
    1.6 2.4 1.76
    2.5 3.75 2.75

    900X emergency shut-off valve main parts material:
    Part name
    Material of parts
    Body and cover
    WCB
    Seat and disc
    Copper alloy
    Sealing ring O-ring
    Nitrile rubber
    Stem 2Cr13
    Spring
    50CrVA
    Needle valve
    Copper alloy
    Ball valve
    Copper alloy
    Floating ball
    Copper alloy
    Micro filter
    Stainless steel

    Structural drawing of 900X emergency shut-off valve:
    Serial number
    Name Material 
    Serial number
    Name Material 
    1 Screw plug
    Carbon steel
    11 Rings Carbon steel
    2 Body Cast iron, cast steel, stainless steel
    12 Ball valve Copper alloy
    3 Stem 2Cr13 13 Pressure gauge
    Assembly
    4 Nut Carbon steel
    14 Solenoid pilot valve
    Assembly
    5 Seal ring
    Rubber
    15 Compression spring
    Stainless steel
    6 Disc Carbon steel
    16 Stud、nut
    Carbon steel
    7 Diaphragm pressure plate
    Carbon steel
    17 Needle valve
    Copper alloy
    8 Rubber diaphragm
    Nitrile rubber
    18 Pressure gauge
    Assembly
    9 Ball valve
    Copper alloy
    19 Ball valve Copper alloy
    10 Bonnet Cast iron, cast steel, stainless steel
    20 Microfilter
    Stainless steel


    Main connecting dimensions of 900X emergency shut-off valve:

    DN 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450
    L 150 160 180 200 203 216 241 292 330 356 495 622 698 787 914 978
    H1 247 247 247 278 278 298 313 350 365 420 450 470 490 523 576 570
    H 342 342 342 395 395 405 430 510 560 585 675 730 760 840 910 910

    Install


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