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  • Metal Seat Wafer flange Butterfly Valve
  • Metal Seat Wafer flange Butterfly Valve
  • Metal Seat Wafer flange Butterfly Valve
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    Metal Seat Wafer Butterfly Valve

    Size Range: 2~20"(DN50~DN500)

    Pressure: 1.0~4.0 MPa

    Body Materials: WCB , Stainless Steel

    Seat Materials: SS, Stellite

    Disc Materials: WCB , Stainless Steel

    Stem Materials: 40Cr, Stainless Steel

    Connection: Wafer,flange


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    Tel: +86-18539246853
    Fax: +86-371-55883235
    E-mail: [email protected]
    Address: ZhengZhou,HeNan,China.

    Adoptive Standards:

    Valve Design: API 609, MSS SP-67

    Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1

    Pressure Test: API 598

    Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

    Top Flange: ISO5211

    Features:

    Three Eccentric Design

    Stainless Steel sealing, good sealing performance with both low temperature and high temperature, anti-corrosive, long life

    Sealing seat anti-frictional and long life

    Bi-Directional

    Fire safe Design

    Low Friction Body Seat

    Model

    D343H-10/D343H-16

    D343H-25/D343H-40

    D343H-10P/D343H-16P
    D343H-25P/D343H-40P

    D343H-10R/D343H-16R
    D343H-25R/D343H-40R

    Working Pressure(MPa)

    1.0~4.0

    Temperature(℃)

    ≤425

    ≤200

    Medium

    Water, Oil, or Non corrosive

    nitric acid

    Acetic Acid

    Material

    Body, Disc

    WCB

    CF8/304

    CF3M/316L

    Stem

    2Cr13

    304

    316L

    Body Sealing

    bead welding 507

    Disc Sealing

    304+flexible graphite

    304+PTFE

    304+PTFE

    Packing

    flexible graphite

    PTFE

    PTFE

    Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

    Seat Test: 1.1 times the working pressure with water.

    Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

    Special Test: On request, any other test can be carried out according to special instruction by client.

    Parameters

    Metal Seat Wafer Butterfly Valve

    inch L H Dt343H Dt643H Dt943H PN4.0MPa
    Short Pattern long Pattern H1 A1 B1 H2 A2 B2 H3 A3 B3 D D1 Z-d
    2 108 150 112 350 180 200       530 250 255 165 125 4-18
    2 1/2 112 170 115 370 180 200 625 355 92 550 250 255 185 145 8-18
    3 114 180 120 380 180 200 625 355 92 565 250 255 200 160 8-18
    4 127 190 138 420 180 200 645 355 92 600 250 255 235 190 8-22
    5 140 200 164 460 180 200 675 550 138 640 250 255 270 220 8-26
    6 140 210 175 555 270 280 715 550 138 705 300 315 300 250 8-26
    8 152 230 208 605 270 280 800 550 138 775 300 315 375 320 12-30
    10 165 250 243 680 270 280 850 550 138 945 300 315 450 385 12-33
    12 178 270 283 800 380 420 925 450 220 1070 300 315 515 450 16-33
    14 190 290 310 830 380 420 1035 450 220 1140 300 315 580 510 16-36
    6 216 310 350 915 450 470 1070 650 280 1210 300 315 660 585 16-39
    8 222 330 380 960 480 490 1190 650 280 1335 575 714 685 610 20-39
    20 229 350 410 1020 480 490       1415 575 714 755 670 20-42

     

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