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Resilient seated Gate Valves Series 421 / 420

Gate valves with soft seal are intended for use in water transport system, especially for potable water as well as sewage from sanitary and industrial systems. They may be used in above-ground and underground applications, in horizontal pipelines. Series 420 only on request.

  • NOMINAL SIZE:
    DN32 - DN600
  • BODY MATERIAL
    Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
  • BODY TYPE:
    Flanged
  • WORKING PRESSURE:
    6 bar / 10 bar / 16 bar
  • FLANGE CONNECTION:
    PN10 / PN16 / PN25 
  • WORKING TEMPERATURE:
    -20°C / +70°C
  • WORKING MEDIA:
    Potable and industrial water, sewage from sanitary and industrial systems
  • MAXIMAL MEDIUM FLOW RATE:
    Liquids up to 4 [m/s]
    Gas up to 30 [m/s]
  • WEDGE:
    NBR / EPD Fully vulcanized
  • Standards

    Product according:

    • EN 1074-1, EN 1074-2, EN 1171

    Face to face dimensions:

    • S421 EN 558-A1 F4 (DIN 3202)

    Marking:

    • EN 19, EN 1074
    • DIN 2631

    Coating:

    • Epoxy one / minimum 250 microns
    • EN 14901

    Flange connection:

    • EN 1092-2
    • (DIN 2501) pressure PN10; PN16; PN25

    Test control:

    • Hydraulic test according EN 1074-1
    • EN 1074-2, EN 12266-1
    • Seat PN x 1,1
    • Body PN x 1,5
  • Type designation
    S42
    1
    80
    • Nominal size
      DN32 – DN600
    • Face to Face Standard
      1 - Series 14 (S421) EN 558
    • Series name
      Series 421
  • DN32-DN350 | PN10/PN16

    DN32-DN350
    PN10/PN16

    No. Name Material
    1 Body Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    2 Bonnet Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    3 Wedge Brass acc. to EN 1982 (DN32)
    Ductile cast iron (DN40-DN350)
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    Rubber EPDM NBR
    EN ISO 1629
    4 Wedge slider POM
    EN ISO 1874-1
    6 Packing cork Brass
    EN 1982
    6 Protection ring Steel 1.1260
    7 Cleaning gasket Rubber EPDM or NBR
    EN ISO 1629
    8 Spindle nut Brass
    EN 1982
    9 Spindle Stainless steel 1.4021
    EN 10088-1
    10 Body-bonnet
    Gasket    		 Rubber EPDM or NBR
    EN ISO 1629
    11, 12 O-ring Rubber EPDM or NBR
    EN ISO 1629
    13 Screw Steel Fe/Zn5, stainless steel EN ISO 4762
    14 Screw stopper Wax
    15 Washer Polyamide Pa6
    EN ISO 1874-1
    DN 421 L 420 L H d D K I C f n Turns for full open S 421 (kg) 420 (kg)
    32 130 140 145 76 140 100 19 18 3 4 9 12 5 6
    40 140 240 220 84 150 110 19 19 3 4 11 14 9 10
    50 150 250 230 99 165 125 19 19 3 4 13,5 14 10 11
    65 170 270 265 118 185 145 19 19 3 4 14 17 14 16
    80 180 280 290 132 200 160 19 19 3 8 17 17 15 17
    100 190 300 325 156 220 180 19 19 3 8 21 19 21 23
    125 200 325 365 184 250 210 19 19 3 8 26 19 31 39
    150 210 350 457 211 285 240 23 19 3 8 26 19 41 48
    200 230 400 534 266 340 295 23 20 3 12 (8) 34,5 24 62 77
    250 250 450 633 319 405 355 (350) 28 (23) 22 3 12 42,5 27 94 106
    300 270 500 708 370 460 410 (400) 28 (23) 25 4 12 51 27 122 148
    350 290 550 790 429 520 470 (460) 28 (23) 27 4 16 60 27 216 254
  • DN400-DN600 | PN10/PN16

    DN400-DN600
    PN10/PN16

    No. Name Material
    1 Body Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    2 Bonnet Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    3 Wedge + slider Ductile cast iron (DN40-DN350)
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    Rubber EPDM / NBR: EN ISO 1629
    POM EN ISO 1874-1
    4 Sealing sleeve Brass
    EN 1982
    5 Spindle nut Brass
    EN 1982
    6 Cleaning gasket Rubber EPDM or NBR
    EN ISO 1629
    7 Spindle Stainless steel 1.4021
    EN 10088-1
    8 Body-bonnet
    Gasket    		 Rubber EPDM or NBR
    EN ISO 1629
    9, 10, 11 O-ring Rubber EPDM or NBR
    EN ISO 1629
    12 Screw Steel Fe/Zn5, stainless steel EN ISO 4762
    13 Screw stopper Wax
    14 Bearing Catalogue
    Producer
    DN 421 L 420 L H d
    PN10/(PN16)    		 D
    PN10/(PN16)    		 K
    PN10/(PN16)    		 I
    PN10/(PN16)    		 C f n Turns for full open S 421 (kg) 420 (kg)
    400 310 600 1220 480 580 525 (515) 31 (28) 28 4 16 458 32 298 345
    450 330 - 1090 548 (530) 640 585 (565) 31 (28) 30 4 20 65 32 360 -
    500 350 700 1220 609 (582) 715 (670) 650 (620) 34 (28) 32 4 20 63 36 458 540
    600 390 800 1390 720 (682) 840 (780) 770 (725) 37 (31) 36 5 20 77 36 640 776
    600* 430 900 1390 794 910 (895) 840 37 (31) 36 5 24 77 36 670 -
    *Flange connection EN 1092-2 for DN700 - valve diameter DN600
  • DN32-DN350 | PN25

    DN32-DN350
    PN25

    No. Name Material
    1 Body Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    2 Bonnet Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    3 Wedge Brass acc. to EN 1982 (DN32)
    Ductile cast iron (DN40-DN350)
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    Rubber EPDM NBR
    EN ISO 1629
    4 Wedge slider POM
    EN ISO 1874-1
    6 Packing cork Brass
    EN 1982
    6 Protection ring Steel 1.1260
    7 Cleaning gasket Rubber EPDM or NBR
    EN ISO 1629
    8 Spindle nut Brass
    EN 1982
    9 Spindle Stainless steel 1.4021
    EN 10088-1
    10 Body-bonnet
    Gasket    		 Rubber EPDM or NBR
    EN ISO 1629
    11, 12 O-ring Rubber EPDM or NBR
    EN ISO 1629
    13 Screw Steel Fe/Zn5, stainless steel EN ISO 4762
    14 Screw stopper Wax
    15 Washer Polyamide Pa6
    EN ISO 1874-1
    DN 421 L 420 L H d D K I C f n Turns for full Open S 421 (kg) 420 (kg)
    32 130 140 145 76 140 100 19 19 3 4 9 12 5,3 6,1
    40 140 240 220 84 150 110 19 19 3 4 11 14 9 10
    50 150 250 230 99 165 125 19 19 3 4 13,5 14 10 10,5
    65 170 270 265 118 185 145 19 19 3 8 14 17 14,5 15
    80 180 280 290 132 200 160 19 19 3 8 17 17 17 19
    100 190 300 325 156 220 190 23 19 3 8 21 19 24 26
    125 200 325 365 184 270 220 28 19 3 8 26 19 31 36
    150 210 350 457 211 300 250 28 20 3 8 26 19 44 50
    200 230 400 534 274 360 310 28 22 3 12 34,5 24 63 80
    250 250 450 633 330 425 370 31 25 3 12 42,5 27 100 111
    300 270 500 708 389 485 430 31 28 4 16 51 27 127 162
    350 290 550 790 448 555 490 34 30 4 16 60 27 230 245
  • DN400-DN500 | PN25

    DN400-DN500
    PN25

    No. Name Material
    1 Body Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    2 Bonnet Ductile cast iron
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    3 Wedge + slider Ductile cast iron (DN40-DN350)
    EN-GJS-400-15 or EN-GJS-500-7
    EN 1563
    Rubber EPDM / NBR: EN ISO 1629
    POM EN ISO 1874-1
    4 Sealing sleeve Brass
    EN 1982
    5 Spindle nut Brass
    EN 1982
    6 Cleaning gasket Rubber EPDM or NBR
    EN ISO 1629
    7 Spindle Stainless steel 1.4021
    EN 10088-1
    8 Body-bonnet
    Gasket    		 Rubber EPDM or NBR
    EN ISO 1629
    9, 10, 11 O-ring Rubber EPDM or NBR
    EN ISO 1629
    12 Screw Steel Fe/Zn5, stainless steel EN ISO 4762
    13 Screw stopper Wax
    14 Bearing Catalogue Producer
    DN 421 L 420 L H d D K I C f n Turns for full open S 421 (kg) 420 (kg)
    400 310 600 1220 503 620 550 37 32 4 16 58 32 315 343
    450 330 - 1090 548 670 600 37 32 4 20 65 32 385 -
    500 350 700 1220 609 730 660) 37 34 4 20 63 36 480 550

Leaflet

ABO-valve-Serie-420_421pdf

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