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Check Valve for Gas conversion device 

  • Check Valve for Gas conversion device

    MW 17-3

    DVGW-Reg.No.: DG-4392A00740

    With positive overlap for testing gas conversion devices Inspection certificate DIN EN 10204 3.1

    Pressure level: PN 100
    Nominal diameter: DN 3
    Temperature range: -20 °C to +60 °C
    Medium: all gases acc. to DVGW worksheet G 260/I
    Body material: St 52.3, galvanized
    Ball seal: PTFE
    Connections: non-soldering compression fittings
    acc. to DIN2353 – EO 6 L
    Labeling: Testing with operating pressure:
    Test connection:
    Testing with external pressure:
    Pressure sensor connection
    Operating position:
    Meter connection
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    Item Item No. Price €
    Check valve for gas conversion device
    Type: MW 17-3 with connections EO 6 L
    KH006100DW 79,80
    Inspection certificate DIN EN 10204 3.1 APZ APZ 18,00
    Design Features
    • full bore
    • O-ring underlaid ball seals
    • ball cock design
    • lever handle can be sealed
    • large position indicator
    In General

    Three-way check valve with positive overlap, full bore (overlapping free design), used mainly for testing gas conversions devices in gas pressure regulating and metering stations.

    No. Description Material Note
    01 Body 9SMn28K galvanized
    02 Ball cock brass hard-chromed
    03 Measurement connection 04 Countersunk screw steel
    04 Countersunk screw steel galvanized
    05 Screw type bearing 9SMn28K
    06 Stop ring St 37
    07 Direction plate 9SMn28K
    08 Support pipe brass
    09 Ball seal PTFE
    10 Union nut steel galvanized
    11 Cutting ring steel hardened
    12 Stop pin steel galvanized
    13 Handle aluminium red anodized
    14 O-Ring NBR (Perbunan) DIN 3535 T3
    15 O-Ring NBR (Perbunan) DIN 3535 T3
    16 O-Ring NBR (Perbunan) DIN 3535 T3
    17 O-Ring NBR (Perbunan) DIN 3535 T3
    18 O-Ring NBR (Perbunan) DIN 3535 T3



    According to the directives of PTB and the operator of the plant, gas conversi- on devices must be calibrated at regular intervals.


    The three-way check valve MW17-3 is tested in the quality control according to DIN3220 T5 PG3 in the following steps according to the testing plan:

    Body upper pressure test: 150 bar
    Tightness test of connections and ball cock seal: 110 / 0,5 bar
    Functional test 100 bar