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    Through-Conduit Gate Valve Home >> Products >> Gate valve

    Detailed introduction

     

    Rising stem rotating and unrisen handwheel outside screw and yokemate-dusty design with position indicator parallel and solid wedge two structures with or without conduit. Welco also can product metallic sealing flat gate valve for critically pipeline application.
      
    Standards compliance 
    Design and manufacture: API 6D
    Inspection and test: API 6D or API 598
    Face to face dimension: ANSI B 16.10
    Connection dimensions: ANSI B16.5 for flanged ends, ANSI B16.25 for butt welded ends.
    Pressure and temperature rating: ANSI B16.34
    Material specifications
    NO.
    Part Name
    Material
    WCB
    LCB
    WC6
    WC9
    C5
    CF8
    CF8M
    CF3
    CF3M
    1
    Body
    A216 WCB
    A352 LCB
    A217 WC6
    A217 WC9
    A217 C5
    A351 CF8
    A351 CF8M
    A351 CF3
    A351 CF3M
    2
    Seat
    A105
    A350 LF2
    A182 F304
    A182 F304
    A182 F304
    A182 F304
    A182 F316
    A182 F304L
    A182 F316L
    3
    Sluice Plate
    A216 WCB
    A325 LCB
    A217 WC6
    A217 WC9
    A217 C5
    A351 CF8
    A351 CF8M
    A351 CF3
    A351 CF3M
    4
    O-Ring
    NBR/FEP
    5
    Gage Block
    A193 B7
    A320 L7
    A193 B16
    A320 B8
    6
    Stem
    A182 F6a
    A182 F304
    A182 F304
    A182 F304
    A182 F304
    A182 F304
    A182 F316
    A182 F304L
    A182 F316L
    7
    Gasket
    Flexible Graphite
    8
    Bolt
    A193 B7
    A320 L7
    A193 B16
    A193 B8
    A194 B8M
    9
    Nut
    A194 2H
    A194 L7
    A194 4
    A194 8
    A194 8M
    10
    Bonnet
    A216 WCB
    A325 LCB
    A217 WC6
    A217 WC9
    A217 C5
    A351 CF8
    A351 CF8M
    A351 CF3
    A351 CF3M
    11
    Backseat Bushing
    A182 F6a
    A182 F6
    A182 F304
    A182 F304
    A182 F304
    A182 F304
    A182 F316
    A182 F304L
    A182 F316L
    12
    Clib Talker
    Copper or Carbon steel or Stainless Steel
    13
    Separate Link
    ASTM A182 F410
    14
    Packing
    Graphite+ASBESTOS
    15
    Yoke
    A216 WCB
    A325 LCB
    A217 WC6
    A217 WC9
    A217 C5
    A351 CF8
    A351 CF8M
    A351 CF3
    A351 CF3M
    16
    Stem nut
    A439 D2~~Cu-Alloy
    17
    Oil Cup
    Copper or Carbon steel or Stainless Steel
    18
    Retaining Nut
    Carbon Steel or Alloy Steel
    19
    Handwheel
    A216 WCB
    20
    Protector
    A105N
    21
    Indicator
    ASTM A182 F410
    The sealing face can be overlay welded 410SS, 316SS or stellited material.
    The major parts of the valvescan be designed and selected according to actual work condition or as per customer specific requirements.
    The materials are according to ASTM standard
     
    Dimensions & weights for ANSI Class 150
    Size
    inch
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    14
    16
    18
    20
    24
    30
    36
    L
    RF
    mm
    178
    190
    203
    229
    267
    292
    330
    356
    381
    406
    432
    457
    508
    610
    711
    BW
    mm
    216
    241
    283
    305
    403
    419
    457
    502
    572
    610
    660
    711
    813
    914
    1016
    RTJ
    mm
    191
    203
    216
    241
    279
    305
    343
    368
    394
    419
    445
    470
    521
    -
    -
    H1
    mm
    122
    154
    169
    193
    283
    352
    440
    514
    602
    678
    785
    855
    1045
    1350
    1510
    H
    mm
    450
    550
    610
    700
    895
    1130
    1290
    1480
    1660
    1850
    2080
    2300
    2680
    3491
    3897
    H2
    mm
    315
    420
    428
    494
    625
    784
    937
    1080
    1283
    1417
    1489
    1672
    2012
    2550
    2850
    W
    mm
    250
    300
    300
    300
    350
    350
    400
    450
    500
    500
    600
    700
    800
    1000
    1000
    G2
    mm
    -
    -
    -
    770
    965
    1200
    1360
    1560
    1740
    1930
    2160
    2420
    2800
    3640
    4050
    G1
    mm
    -
    -
    -
    650
    800
    960
    1080
    1200
    1350
    1500
    1680
    1850
    2120
    2800
    3080
    Gw
    mm
    -
    -
    -
    310
    310
    310
    310
    310
    460
    460
    460
    460
    460
    460
    600
    Weight
    KG
    34
    41
    56
    84
    142
    236
    352
    450
    600
    736
    890
    1120
    2010
    2920
    5370
     
    Dimensions & weights for ANSI Class 300
    Size
    inch
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    14
    16
    18
    20
    24
    30
    36
    L
    RF
    mm
    216
    241
    283
    305
    403
    419
    457
    502
    762
    838
    914
    991
    1143
    1397
    1727
    BW
    mm
    216
    241
    283
    305
    403
    419
    457
    502
    762
    838
    914
    991
    1143
    1397
    1727
    RTJ
    mm
    232
    257
    298
    321
    419
    435
    473
    518
    778
    854
    930
    1010
    1165
    1422
    1756
    H1
    mm
    137
    169
    184
    218
    311
    382
    476
    545
    645
    728
    800
    930
    1100
    1420
    1510
    H
    mm
    458
    555
    615
    710
    900
    1135
    1401
    1580
    -
    -
    -
    -
    -
    -
    -
    H2
    mm
    325
    420
    430
    500
    625
    790
    1040
    1150
    -
    -
    -
    -
    -
    -
    -
    W
    mm
    250
    300
    300
    300
    350
    350
    400
    400
    -
    -
    -
    -
    -
    -
    -
    G2
    mm
    -
    -
    -
    770
    965
    1200
    1360
    1560
    1740
    1930
    2160
    2420
    2800
    3640
    4050
    G1
    mm
    -
    -
    -
    650
    800
    960
    1090
    1200
    1350
    1540
    1700
    1850
    2120
    2800
    3080
    Gw
    mm
    -
    -
    -
    310
    310
    310
    310
    310
    460
    460
    460
    460
    460
    460
    600
    Weight
    KG
    54
    68
    85
    112
    240
    365
    500
    757
    1050
    1480
    2040
    2650
    4260
    6300
    8900
     
    Dimensions & weights for ANSI Class 600
    Size
    inch
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    14
    16
    18
    20
    24
    30
    36
    L
    RF
    mm
    292
    330
    356
    432
    559
    660
    787
    838
    889
    991
    1092
    1194
    1397
    1651
    2083
    BW
    mm
    292
    330
    356
    432
    559
    660
    787
    838
    889
    991
    1092
    1194
    1397
    1651
    2083
    RTJ
    mm
    295
    333
    359
    435
    562
    664
    791
    841
    892
    994
    1095
    1200
    1407
    1664
    2175
    H1
    mm
    158
    190
    225
    255
    330
    410
    490
    570
    650
    735
    810
    905
    1160
    1290
    1530
    H
    mm
    468
    565
    625
    720
    910
    1145
    1411
    1590
    -
    -
    -
    -
    -
    -
    -
    H2
    mm
    335
    430
    440
    510
    630
    800
    1050
    1160
    -
    -
    -
    -
    -
    -
    -
    W
    mm
    300
    300
    350
    350
    400
    500
    500
    600
    -
    -
    -
    -
    -
    -
    -
    G2
    mm
    505
    560
    610
    770
    965
    1200
    1370
    1560
    1740
    1970
    2260
    2420
    2590
    3821
    4400
    G1
    mm
    430
    470
    510
    650
    800
    960
    1090
    1200
    1350
    1540
    1700
    1850
    2020
    2654
    3070
    Gw
    mm
    310
    310
    310
    310
    310
    310
    460
    460
    460
    460
    460
    460
    460
    600
    600
    Weight
    KG
    66
    93
    110
    156
    296
    640
    900
    1135
    1700
    2350
    2776
    4210
    6010
    7910
    15200
     
    Dimensions & weights for ANSI Class 900
    Size
    inch
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    14
    16
    18
    20
    24
    L
    RF
    mm
    368
    419
    381
    457
    610
    737
    838
    965
    1029
    1130
    1219
    1321
    1549
    BW
    mm
    368
    419
    381
    457
    610
    737
    838
    965
    1029
    1130
    1219
    1321
    1549
    RTJ
    mm
    371
    422
    384
    460
    613
    740
    841
    968
    1038
    1140
    1232
    1334
    1568
    H1
    mm
    158
    190
    225
    255
    290
    460
    560
    660
    770
    840
    920
    1000
    1200
    H
    mm
    473
    570
    630
    725
    915
    1150
    1416
    1595
    -
    -
    -
    -
    -
    H2
    mm
    335
    435
    445
    515
    640
    800
    1055
    1165
    -
    -
    -
    -
    -
    W
    mm
    300
    300
    350
    350
    400
    500
    500
    600
    -
    -
    -
    -
    -
    G2
    mm
    525
    585
    635
    800
    995
    1250
    1420
    1600
    1800
    2000
    2260
    2520
    2650
    G1
    mm
    450
    490
    530
    680
    830
    1000
    1140
    1230
    1400
    1620
    1785
    1950
    2100
    Gw
    mm
    310
    310
    310
    310
    310
    460
    460
    460
    460
    460
    460
    460
    460
    Weight
    KG
    103
    135
    162
    286
    532
    970
    1305
    2000
    2600
    3210
    4000
    5120
    9400
     
    Dimensions & weights for ANSI Class 1500
    Size
    inch
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    L
    RF
    mm
    368
    419
    470
    546
    705
    832
    991
    1130
    BW
    mm
    368
    419
    470
    546
    705
    832
    991
    1130
    RTJ
    mm
    371
    422
    473
    549
    711
    842
    1000
    1146
    H1
    mm
    165
    203
    230
    269
    340
    420
    510
    590
    H
    mm
    480
    595
    650
    740
    980
    -
    -
    -
    H2
    mm
    345
    450
    470
    525
    650
    -
    -
    -
    W
    mm
    350
    350
    400
    450
    500
    -
    -
    -
    G2
    mm
    540
    598
    650
    810
    1070
    1350
    1480
    1680
    G1
    mm
    360
    500
    545
    710
    840
    1050
    1180
    1300
    Gw
    mm
    310
    310
    460
    460
    460
    460
    460
    460
    Weight
    KG
    120
    169
    260
    380
    910
    1520
    2280
    3300