Description
PN*6 ~ PN**0 swing check valve is suitable for any pipeline in
petroleum,chemical, pharmaceutical, chemical fertilizer, electric
power industry, etc,whoseWorking pressure range from1.6 to *5 MPa,
working temperature range of butterfly swing check valve from - *9
to + **0 ℃,and medium are varied like water, oil, steam, acid
medium, etc.Performance Data of cast iron swing check valve
Design   Length Â
 Flangesize Â
 Pressuretemperature   Test inspect
GB/T****6 Â Â Â Â Â Â GB****1
       Â
JB*9Â Â Â GB***1 Â Â Â Â
 GB/T****7   Â
       Â
   Â
Design Pressure Unit: MPa
Pressure    1.6 Â
 2.5   4 Â
 6.4   *0   *6
Strength   2.4 Â
 3.8   6 Â
 9.6   *5   *4
Water seal   1.6 Â
 2.5   4 Â
 6.4   *0   *6
Air seal   0.**0.7
Components/Material/Function
Body Cover   Guide sleeve Â
 Pin roll    Filler piece Â
 Sealing facing Â
 Applicabletemperature Â
 Applicablemedium
QT**0Â Â Â WCBÂ Â
 1Cr*3   Reinforced flexible
graphite1Cr*3/Soft graphite, stainless steel/ Acid asbestos PTFE,
grooved metal gasket   1CrSTLmaterialPTFE
 nylon   ≦**0 Â
 Water.Steam.Oil
WCBÂ Â Â Â Â Â Â Â
     Â
 ≦**5  Â
WC8Â Â Â WC6Â Â Â Â Â
     Â
 ≦**0  Â
WC9Â Â Â WC9Â Â Â Â Â
     Â
 ≦**0  Â
2GCr5Mo   2GCr5Mo Â
        Â
 ≦**0  Â
ZG1Cr*8Ni9Ti   ZG1Cr*8Ni9Ti Â
 1Cr*8Ni9Ti    Â
    ≦**0   Nitric
acid acetic acid
ZG1C*8Ni*2Mo2Ti   ZG1C*8Ni*2Mo2Ti Â
 1C*8Ni*2Mo2Ti    Â
    ≦**0   acetic
acid