YOUR LOCATION : HOME » PRODUCTS » Gate valve » Metal seated gate valve » WZ Series Metal seated OS&Y gate valve

WZ Series Metal seated OS&Y gate valve

Size:DN 40~DN 600

Pressure:PN10/PN16 

Standard:

Face to face: DIN3202 F4,BS5163

Flange connection: EN1092 PN10/16

Top flange: ISO 5210

+86 022 25217878
+86 022 25219878
  • Description:

    WZ Series Metal seated OS&Y gate valve use a ductile iron gate that houses bronze rings to ensure a watertight seal. The OS&Y (Outside Screw and Yoke) gate valve is mainly used in fire protection sprinkler systems. The main difference from a standard NRS (Non Rising Stem) gate valve is that the stem and stem nut are placed outside the valve body. This makes it easy to see if the valve is open or closed, as almost the entire length of the stem is visible when the valve is open, while the stem is no longer visible when the valve is closed. In general this is a requirement in these kinds of systems to ensure a fast visual control of the system status

     

    Material list:


    Parts

    Material

    Body

    Cast iron,Ductile iron

    Disc

    Cast iron,Ductile iron

    Stem

    SS416,SS420,SS431

    Seat ring

    Bronze/Brass

    Bonnet

    Cast iron,Ductile iron

    Stem nut

    Bronze/Brass

     

    Feature:

     

    Wedge nut:The wedge nut is made of copper alloy with lubricating abilities providing optimum compatibility with the stainless steel stem.

     

    Wedge:The wedge is made from ductile iron with copper alloy face rings which are machnined to a fine surface finish to ensure optimum contact seal with body seat rings.The wedge face rings are accurately machined and firmly secured to the wedge.The guides in the wedge ensure uniform closure regardless of high pressures.The wedge has a large throught bore housing for the stem that ensures no stagnant water or impuritiles can collect.The wedge is fully protected by a coating of fusion bonded epoxy.

     

     

     

    Pressure test:

     

    Nominal pressure

    PN10

    PN16

    Test pressure

    Shell

    1.5 Mpa

    2.4 Mpa

    Sealing

    1.1 Mpa

    1.76 Mpa

  • Dimensions:


    Type DN(mm) L D D1 b Z-Φd H D0 Weight (kg)
    RS 40 165 150 110 18 4-Φ19 252 135 11/12
    50 178 165 125 20 4-Φ19 295 180 17/18
    65 190 185 145 20 4-Φ19 330 180 21/22
    80 203 200 160 22 8-Φ19 382 200 27/28
    100 229 220 180 24 8-Φ19 437 200 35/37
    125 254 250 210 26 8-Φ19 508 240 46/49
    150 267 285 240 26 8-Φ23 580 240 66/70
    200 292 340 295 26/30 8-Φ23/12-Φ23 760 320 103/108
    250 330 395/405 350/355 28/32 12-Φ23/12-Φ28 875 320 166/190
    300 356 445/460 400/410 28/32 12-Φ23/12-Φ28 1040 400 238/274
    350 381 505/520 460/470 30/36 16-Φ23/16-Φ28 1195 400 310/356
    400 406 565/580 515/525 32/38 16-Φ28/16-Φ31 1367 500 440/506
    450 432 615/640 565/585 32/40 20-Φ28/20-Φ31 1460 500 660/759
    500 457 670/715 620/650 34/42 20-Φ28/20-Φ34 1710 500 810/932
    600 508 780/840 725/770 36/48 20-Φ31/20-Φ37 2129 500 1100/1256

If you have any questions, please send an e-mail inquiry

  • * E-mail :
  • * Name :
  • * Company :
  • * Telephone :
  • * Message :
  • * Code :